MedWorm.com provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest items from the 'Cardiovascular Ultrasound' source. Thu, 09 Feb 2012 03:37:27 +0100 http://www.medworm.com/index.php?rid=5651946&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F10%2F1%2F4 Three-dimensional echocardiography (3DE) and speckle tracking echocardiography (STE) have recently applied as imaging techniques to accurately evaluate left atrial (LA) size, anatomy and function. 3DE and off-line quantification softwares, have allowed, in comparison to magnetic resonance imaging, the most time-efficient and accurate method of LA volume quantification. STE provides a non-Doppler, angle-independent and objective quantification of LA myocardial deformation. Data regarding feasibility, accuracy and clinical applications of LA analysis by 3DE and STE are rapidly gathering. This review describes the fundamental concepts of LA 3DE and STE, illustrates how to obtain respective measurements and discuss their recognized and emerging clinical applications. (Source: Cardiovascular Ul... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5651946 Wed, 01 Feb 2012 05:00:00 +0100 5651946 http://www.medworm.com/index.php?rid=5651947&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F10%2F1%2F3 Conclusions: In patients with MVP, thick mitral leaflet is not associated with significant MR. Leaflet thickness is probably not as important in risk stratification as previously reported in patients with MVP. Other anatomical and geometrical features of the mitral valve apparatus area appear to be much more closely related to MR severity. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5651947 Fri, 27 Jan 2012 05:00:00 +0100 5651947 http://www.medworm.com/index.php?rid=5621906&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F10%2F1%2F2 Background: Use of rate adaptive atrioventricular (AV) delay remains controversial in patients with biventricular (Biv) pacing. We hypothesized that a shortened AV delay would provide optimal diastolic filling by allowing separation of early and late diastolic filling at increased heart rate (HR) in these patients. Methods: 34 patients (75+/-11 yrs, 24M, LVEF 34+/-12%) with Biv and atrial pacing had optimal AV delay determined at baseline HR by Doppler echocardiography. Atrial pacing rate was then increased in 10 bpm increments to a maximum of 90 bpm. At each atrial pacing HR, optimal AV delay was determined by changing AV delay until best E and A wave separation was seen on mitral inflow pulsed wave (PW) Doppler with minimal atrial truncation (defined as increased atrial duration from bas... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5621906 Tue, 24 Jan 2012 05:00:00 +0100 5621906 http://www.medworm.com/index.php?rid=5573656&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F10%2F1%2F1 Conclusions: Manual correction of the 3DE semi-automatic RV delineation decreases the bias and is needed for acceptable clinical accuracy. 3DE is highly feasible for visualizing the RV in an adult clinical setting. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5573656 Fri, 06 Jan 2012 05:00:00 +0100 5573656 http://www.medworm.com/index.php?rid=5554129&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F43 Conclusions: Physiological changes in the levels of glucose, insulin, GLP-1 and ghrelin may influence the activity of the heart and the blood pressure. There may also be gender-related differences in the haemodynamic responses to postprandial changes in hormone levels. The results of this study show that subjects should not eat immediately prior to, or during, the evaluation of cardiovascular interventions as postprandial affects may affect the results, leading to erroneous interpretation of the cardiovascular effects of the primary intervention.Trial registration number: NCT01027507 (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5554129 Thu, 29 Dec 2011 05:00:00 +0100 5554129 http://www.medworm.com/index.php?rid=5528306&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F42 Conclusion: MAPSE/TAPSE and LVs/RVs ratios appear stable across age, gender, and BSA potentially making them good surrogates of systolic ventricular relationship and interdependence. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5528306 Tue, 20 Dec 2011 05:00:00 +0100 5528306 http://www.medworm.com/index.php?rid=5507877&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F41 Background: Chronic right ventricular (RV) apical pacing may lead to left ventricular (LV) dyssynchrony and LV dysfunction. In heart failure due to RV pacing, upgrading to biventricular stimulation (CRT) can improve NYHA Class and LV function. A proportion of patients do not respond to upgrading. Aim was to assess whether etiology of LV dysfunction accounts for responses to CRT in RV-paced patients. Methods: Sixty-two patients treated by CRT, under RV pacing from 50.2 +/- 5.4 months, were studied. Cause of LV dysfunction was non-ischemic (NIC) in 28 and ischemic cardiomyopathy (IC) in 34 patients. Clinical and conventional echocardiographic parameters were available within 1 month before RV pacing, within 1 month before CRT and at 12 +/- 2 months of follow-up (FU). Results: Decreased LVEF ... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5507877 Fri, 16 Dec 2011 05:00:00 +0100 5507877 http://www.medworm.com/index.php?rid=5489408&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F40 Background: Cardiac syndrome X is an important therapeutic and diagnostic challenge to physician. Study of Csx patients may help to understand the pathophysiology of coronarymicrocirculation and to gain an insight on the management of these group patients. Methods: We measured the flow mediated dilation of the brachial artery both endothelium dependent and independent vasodilatation by high resolution ultrasound in 30 cardiac syndrome X patients and matched with 30 healthy control subjects. Results: Significantly decreased flow mediated dilatation was observed in patients when compared to control (9.42 +/- 7.20 vs 21.11+/- 9.16 p (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5489408 Fri, 09 Dec 2011 05:00:00 +0100 5489408 http://www.medworm.com/index.php?rid=5489409&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F39 Conclusions: Although histological examination remains indispensable for a conclusive diagnosis, high-frequency u-echocardiography, thanks to the high spatial and contrast resolution, can be considered sufficient for monitoring therapeutic efficacy and/or the progression of dilated cardiomyopathy, providing an alternative tool for repeatable and noninvasive evaluation. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5489409 Thu, 08 Dec 2011 05:00:00 +0100 5489409 http://www.medworm.com/index.php?rid=5444076&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F37 Conclusions: Our data confirm the good hemodynamic performance of both aortic bioprostheses and the more favourable hemodynamic profile of CEPM compared to CEPS, pointing out the need to perform routinely an accurate baseline Doppler-echocardiography evaluation early after surgery to allow an adequate interpretation of data at follow-up. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5444076 Thu, 24 Nov 2011 05:00:00 +0100 5444076 http://www.medworm.com/index.php?rid=5444075&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F38 Background: There is strong evidence that left atrial (LA) size is a prognostic marker in a variety of heart diseases. Recently, real-time three-dimensional echocardiography (RT3DE) has been reported as a useful tool for studying the phasic changes of the left atrial volumes. The aim of this study was to investigate the performance of the left atrium in beta-thalassemic patients with preserved left ventricular ejection fraction (EF) and no iron overload, using RT3DE. Methods: Twenty-eight asymptomatic b-thalassemic patients (32.2 +/- 4.3 years old, 17 men) who were on iron chelating therapy, as well as 20 age- and sex-matched healthy controls underwent transthoracic RT3DE. The patient group had normal echocardiographic systolic and diastolic indices, while there was no myocardial iron disp... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5444075 Thu, 24 Nov 2011 05:00:00 +0100 5444075 http://www.medworm.com/index.php?rid=5433899&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F35 The "radiation issue" is the need to consider possible deterministic effects (e.g., skin injuries) and long-term cancer risks due to ionizing radiation in the risk-benefit assessment of diagnostic or therapeutic testing. Although there are currently no data showing that high-dose medical studies have actually increased the incidence of cancer, the "linear-no threshold" model in radioprotection assumes that no safe dose exists; all doses add up in determining cancer risks; and the risk increases linearly with increasing radiation dose. The possibility of deterministic effects should also be considered when skin or lens doses may be over the threshold. Cardiologists have a special mission to avoid unjustified or non-optimized use of radiation, since they are responsible for 45% of the entire... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5433899 Mon, 21 Nov 2011 05:00:00 +0100 5433899 http://www.medworm.com/index.php?rid=5433898&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F36 Conclusion: The first and second heart sound vibrations non-invasively monitored by a force sensor are useful for continuously assessing diastolic time during exercise. Exercise-induced abnormal PASP was associated with reduced diastolic time at heart rates beyond 100 beats per minute. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5433898 Mon, 21 Nov 2011 05:00:00 +0100 5433898 http://www.medworm.com/index.php?rid=5424529&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F33 Hypertension is associated with atherosclerosis and cardiac and vascular structural and functional changes. Myocardial ischemia may arise in hypertension independent of coronary artery disease through an interaction between several pathophysiological mechanisms, including left ventricular hypertrophy, increased arterial stiffness and reduced coronary flow reserve associated with microvascular disease and endothelial dysfunction. The present case report demonstrates how contrast stress echocardiography can be used to diagnose myocardial ischemia in a hypertensive patient with angina pectoris but without significant obstructive coronary artery disease. The myocardial ischemia was due to severe resistant hypertension complicated with concentric left ventricular hypertrophy and increased arter... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5424529 Fri, 18 Nov 2011 05:00:00 +0100 5424529 http://www.medworm.com/index.php?rid=5424528&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F34 Conclusion: LAVI may be an effective marker for detecting the risk of MACCE in patients with HCM and normal pump function. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5424528 Fri, 18 Nov 2011 05:00:00 +0100 5424528 http://www.medworm.com/index.php?rid=5412556&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F30 Background: Sodium channel blockers augment ST-segment elevation in the right precordial leads in patients undergoing Brugada-type electrocardiography (ECG). However, their effect on echocardiographic features is not known. We address this by assessing global and regional ventricular function using conventional Doppler and two- dimensional (2D)speckle tracking techniques. Methods: Thirty-one patients with Brugada-type ECG were studied. A pure sodium channel blocker, pilsicainide, was used to provoke an ECG response. The percentage longitudinal systolic myocardial strain at the base of both the right ventricular (RV) free wall and the interventricular septum wall was measured using 2D speckle tracking. Left ventricular (LV) and RV myocardial performance (TEI) indices were also measured. Res... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5412556 Wed, 16 Nov 2011 05:00:00 +0100 5412556 http://www.medworm.com/index.php?rid=5412555&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F31 Conclusion: CKD, even pre-stage 5 CKD, has a more powerful impact on the presence and severity of AS than other conventional risk factors for atherosclerosis in patients at high risk for CAD. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5412555 Wed, 16 Nov 2011 05:00:00 +0100 5412555 http://www.medworm.com/index.php?rid=5412554&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F32 Background: Intima-media thickness of the common carotid artery (CCA-IMT) is a validated marker of systemic atherosclerosis process. The aim of this study was to evaluate the association between coronary artery disease (CAD), left ventricular hypertrophy (LVH) and CCA-IMT, assessed by Radio Frequency-Quality Intima Media Thickness (RFQIMT) method, the next generation of IMT real-time measurement, based on the direct analysis of the radiofrequency signal and endowed with high accuracy and reproducibility in early detection of arterial wall thickness. Methods: 115 patients (76 men, mean age: 65.1 +/- 12 years) referred to our department and shown significant (>70% luminal obstruction) stenosis at least in one major epicardial coronary artery were studied. Coronary angiograms were divided for... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5412554 Wed, 16 Nov 2011 05:00:00 +0100 5412554 http://www.medworm.com/index.php?rid=5368293&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F29 Conclusions: MAC appeared to independently influence the immediate result of PTMC; therefore, mitral annulus evaluation may be considered in the echocardiographic assessment of the mitral apparatus prior to PTMC. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5368293 Fri, 28 Oct 2011 04:00:00 +0100 5368293 http://www.medworm.com/index.php?rid=5307107&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F27 Conclusions: Progressive increase of apical LV twist may represent an important component of myocardial remodelling. This aspect is particularly evident in the young cyclists group where the CMi and the LVDD are higher. ST multilayer approach completes the LV performance evaluation in young trained athletes showing values similar to adults. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5307107 Wed, 12 Oct 2011 04:00:00 +0100 5307107 http://www.medworm.com/index.php?rid=5264264&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F26 When applying echo-Doppler imaging for either clinical or research purposes it is very important to select the most adequate modality / technology and choose the most reliable and reproducible measurements. Quality control is a mainstay to reduce variability among institutions and operators and must be obtained by using appropriate procedures for data acquisition, storage and interpretation of echo-Doppler data. This goal can be achieved by employing an echo core laboratory (ECL), with the responsibility for standardizing image acquisition processes (performed at the peripheral echo-labs) and analysis (by monitoring and optimizing the internal intra- and inter-reader variability of measurements). Accordingly, the Working Group of Echocardiography of the Italian Society of Cardiology decide... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5264264 Mon, 26 Sep 2011 04:00:00 +0100 5264264 http://www.medworm.com/index.php?rid=5253856&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F25 A 42-year-old woman admitted with debilitation and engorgement both lower extremities. Transthoracic two-dimensional echocardiography, abdominal ultrasound and computerized tomography revealed a lobulated pelvic mass, a mass within right internal iliac vein, both common iliac vein, as well as the inferior vena cava, extending into the right atrium. In addition, echocardiography and abdominal ultrasound showed the tumor of right atrium and inferior vena cave has no stalk and has well-demarcated borders with the wall of right atrium and inferior vena cave. Hence, the presumptive diagnosis of IVL was made by echocardiography and abdominal ultrasound and the presumptive diagnosis of sarcoma with invasion in right internal iliac vein, both common iliac vein, the inferior vena cava, as well as t... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5253856 Sat, 24 Sep 2011 04:00:00 +0100 5253856 http://www.medworm.com/index.php?rid=5229515&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F24 Conclusions: Videodensitometric computer analysis of ultrasound scanning images can be used to identify stable carotid plaques, which have higher total expression levels of MMP-9 and TIMP-1 than unstable plaques. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5229515 Sun, 18 Sep 2011 04:00:00 +0100 5229515 http://www.medworm.com/index.php?rid=5149991&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F23 A 71-year-old woman presented with a right adnexal solid mass invading the right gonadal vein and inferior vena cava up to the hepatic veins revealed by CT and confirmed by MRI. A thin-walled cyst and a solid mass were unexpectedly found in the right atrium by transesophageal echocardiography (TEE) in the operating room. Using color Doppler and air bubbles as contrast material a circumscribed cyst was confirmed and localized close to the IVC. The cyst was connected to the mass in the inferior vena cava. The tumor, including the cyst, was removed without using cardiopulmonary bypass and described as a low-grade endometrial stromal sarcoma, a rare slowly growing tumor. This is the first TEE description of endometrial stromal sarcoma manifesting as a right atrial cyst. (Source: Cardiovascular... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5149991 Tue, 23 Aug 2011 23:00:00 +0100 5149991 http://www.medworm.com/index.php?rid=5134590&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F22 ${item.shortDescription} (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5134590 Mon, 15 Aug 2011 23:00:00 +0100 5134590 http://www.medworm.com/index.php?rid=5072862&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F20 ${item.shortDescription} (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5072862 Wed, 27 Jul 2011 23:00:00 +0100 5072862 http://www.medworm.com/index.php?rid=5072861&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F21 ${item.shortDescription} (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=5072861 Wed, 27 Jul 2011 23:00:00 +0100 5072861 http://www.medworm.com/index.php?rid=4926139&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F19 Background: the clinical decision making could be difficult in patients with borderline lesions (visually assessed stenosis severity of 30 to 50%) of the left main coronary artery (LM). The aim of the study was to evaluate the relationship between transthoracic Doppler (TTDE) peak diastolic flow velocity (PDV) and intravascular ultrasound (IVUS) measurements in the assessment of angiographically borderline LM lesions. Methods: 27 patients (mean age 64+/-8 years, 21 males) with borderline LM stenosis referred for IVUS examination were included in the study. We performed standard IVUS with minimal lumen area (MLA) and plaque burden (PB) measurement and routine quantitative coronary angiography (QCA) with diameter stenosis (%DS) and area stenosis (%AS) assessment in all. During TTDE, resting ... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4926139 Mon, 13 Jun 2011 23:00:00 +0100 4926139 http://www.medworm.com/index.php?rid=4907308&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F18 A 51-year-old female undergoing an outpatient stress echocardiogram to evaluate atypical chest pain developed acute ST elevation in the anterior precordial leads on electrocardiogram following exercise. Echocardiography revealed a severe rise in pulmonary artery systolic pressure (PASP) with marked right ventricular (RV) enlargement and interventricular septum flattening. Subsequently, cardiac catherization confirmed an exercise-induced elevation in PASP and diagnosed pulmonary arterial hypertension without evidence of coronary artery disease. This case suggests that an acute elevation in pulmonary artery pressure with RV dilation may be a potential cause of acute ST elevation during stress testing. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4907308 Sun, 05 Jun 2011 23:00:00 +0100 4907308 http://www.medworm.com/index.php?rid=4897954&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F17 Background: Left ventricular ejection fraction (LVEF) has been considered a major determinant of early outcome in acute myocardial infarction (AMI). Myocardial performance index (MPI) has been associated to early evolution in AMI in a heterogeneous population, including non ST-elevation or previous AMI. Left atrial volume has been related with late evolution after AMI. We evaluated the independent role of clinical and echocardiographic variables including LVEF, MPI and left atrial volume in predicting early in-hospital congestive heart failure (CHF) specifically in patients with a first isolated ST-elevation AMI. Methods: Echocardiography was performed within 30 hours of chest pain in 95 patients with a first ST-elevation AMI followed during the first week of hospitalization. Several clini... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4897954 Thu, 02 Jun 2011 23:00:00 +0100 4897954 http://www.medworm.com/index.php?rid=4874407&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F16 Conclusion: The early measurement of CFR by TDE can be of high value for the assessment of successful reperfusion in AMI and can be used to predict LV functional recovery, myocardial viability and the final infarct size. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4874407 Fri, 27 May 2011 23:00:00 +0100 4874407 http://www.medworm.com/index.php?rid=4867453&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F15 Objectives. Feasibility of noninvasive monitoring of cardiac function after surgically induced ischemic cardiomyopathy with tissue Doppler and non-Doppler 2D strain echocardiography in rats. Background. The optimal method for quantitative assessment of global and regional ventricular function in rats with chronic heart failure for research purposes remains unclear. Methods. 20 rats underwent suture ligation of the left anterior descending coronary artery via a left thoracotomy to induce ischemic cardiomyopathy. Echocardiographic examination with estimation of left ventricular wall thickness, diameters, fractional shortening, ejection fraction, wall velocities as well as radial strain were performed before and 4 weeks after surgery. Results. Mean LVEF decreased from 70 +/- 6 % to 40 +/- 8 %... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4867453 Wed, 25 May 2011 23:00:00 +0100 4867453 http://www.medworm.com/index.php?rid=4750347&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F14 Background: The aim of this study was to verify the benefits and limitations of repeated bedside echocardiographic examinations in children during mechanical ventilation. For the purposes of this study, we selected the data of over a time period from 2006 to 2010. Methods: A total of 235 children, average age 3.21 (SD 1.32) years were included into the study and divided into etiopathogenic groups. High-risk groups comprised: Acute lung injury and acute respiratory distress syndrome (ALI/ARDS), return of spontaneous circulation after cardiopulmonary resuscitation (ROSC), bronchopulmonary dysplasia (BPD), cardiomyopathy (CMP) and cardiopulmonary disease (CPD). Transthoracic echocardiography was carried out during mechanical ventilation. The following data were collated for statistical evalua... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4750347 Mon, 25 Apr 2011 23:00:00 +0100 4750347 http://www.medworm.com/index.php?rid=4700607&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F12 We report a case of a 52-year-old patient with dilated cardiomyopathy who presented with worsening heart failure. Two-dimensional transthoracic echocardiography and real-time three dimensional transthoracic echocardiography showed severe dilated cardiac chambers, impaired ejection fraction and a mobile right atrial thrombus 2.6x 1.0 cm in size, traversing the right atrial cavity during the whole cardiac cycle. After one week therapeutic anticoagulation, echocardiography confirmed no evidence of residual thrombus. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4700607 Sat, 09 Apr 2011 23:00:00 +0100 4700607 http://www.medworm.com/index.php?rid=4678997&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F11 Conclusions: ASDI can predict responders and LV reverse remodeling following CRT. This novel index using the 3-D speckle tracking system, which shows circumferential and longitudinal LV dyssynchrony and residual endocardial contractility, may thus have clinical significance for CRT patients. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4678997 Mon, 04 Apr 2011 23:00:00 +0100 4678997 http://www.medworm.com/index.php?rid=4673213&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F10 Conclusions: We found that the feasibility of dobutamine stress echocardiography to determine CFR in the territory of the LAD coronary artery was high. In this study, it was necessary to achieve a difference of 50 bpm from baseline HR or at least 75% of the maximum predicted heart rate to consider sufficient the test for the analysis of CFR. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4673213 Sun, 03 Apr 2011 23:00:00 +0100 4673213 http://www.medworm.com/index.php?rid=4667041&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F9 Conclusions. Our data indicate that OARI may have a potential as a new precocious marker of subclinical atherosclerosis in HIV-1-infected patients. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4667041 Thu, 31 Mar 2011 23:00:00 +0100 4667041 http://www.medworm.com/index.php?rid=4529262&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F8 A 63-year-old man was admitted to our hospital with a complaint of right lateroabdominal pain. He was diagnosed with metastatic colon cancer, and then developed multiple brain embolic infarctions 7 days after admission. Transesophageal echocardiography showed that mobile, echo-dense masses were attached to the anterior and posterior mitral valve leaflet. Furthermore, there was a thrombus in the left auricular appendage despite sinus rhythm. These findings led to a diagnosis of suspected infectious endocarditis with subsequent multiple brain infarctions. The patient's general condition worsened and he died 13 days after admission. An autopsy was performed, and, while poorly differentiated cancer was observed in multiple organs, no primary tumor could be identified. Histological analysis sho... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4529262 Mon, 28 Feb 2011 00:00:00 +0100 4529262 http://www.medworm.com/index.php?rid=4525850&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F6 For many years the lung has been considered off-limits for ultrasound. However, it has been recently shown that lung ultrasound (LUS) may represent a useful tool for the evaluation of many pulmonary conditions in cardiovascular disease. The main application of LUS for the cardiologist is the assessment of B-lines. B-lines are reverberation artifacts, originating from water-thickened pulmonary interlobular septa. Multiple B-lines are present in pulmonary congestion, and may help in the detection, semiquantification and monitoring of extravascular lung water, in the differential diagnosis of dyspnea, and in the prognostic stratification of chronic heart failure and acute coronary syndromes. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4525850 Sun, 27 Feb 2011 00:00:00 +0100 4525850 http://www.medworm.com/index.php?rid=4525849&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F7 :Valvular strands, well-delineated filiform masses, attached to cardiac valve edges are associated with cerebral embolism and stroke. Strokes, caused by emboli from valvular strands, tend to occur among younger persons.In this case report a valvular strand, giving a peculiar serpentine appearance to the mitral valve is described. This mitral valvular strand was the only explanation for an episode of cerebral embolism, presenting with a transient right sided hemiparesis.It is proposed that a randomized study involving combined treatment with aspirin and clopidogrel is warranted in young patients with valvular strands, presenting with a first episode of cerebral embolism.KeywordsValvular strand; serpentine; embolism; stroke (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4525849 Sun, 27 Feb 2011 00:00:00 +0100 4525849 http://www.medworm.com/index.php?rid=4447670&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F5 Background: Tissue Doppler imaging (TDI) is a noninvasive echocardiographic method for the diagnosis of diastolic dysfunction in patients with varying degrees of aortic stenosis (AS). Little is known however, on the utility of TDI in the serial assessment of diastolic abnormalities in AS.ObjectiveThe aim of the current proposal was to examine whether treatment with rosuvastatin was successful in improving diastolic abnormalities in patients enrolled in the Aortic Stenosis Progression Observation Measuring Effects of Rosuvastatin (ASTRONOMER) study. Methods: Conventional Doppler indices including peak early (E) and late (A) transmitral velocities, and E/A ratio were measured from spectral Doppler. Tissue Doppler measurements including early (E') and late (A') velocities of the lateral annul... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4447670 Mon, 07 Feb 2011 00:00:00 +0100 4447670 http://www.medworm.com/index.php?rid=4443524&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F4 A 53-year-old man with depressed ejection fraction (EF) of 35% and QRS width of 88ms at rest was admitted to our institution with a complaint of exertional chest discomfort and dyspnea. During treadmill exercise, left bundle-branch block (LBBB) with a QRS width of 152 ms occurred at a heart rate of 100 bpm. During LBBB, the patient showed significant mechanical dyssynchrony as evidenced by a two-dimensional speckle tracking radial strain of 260 ms ([greater than or equal to]130 ms), defined as the time difference between anterior-septum and posterior wall. Five-month after carvedilol and candesartan administration, EF had improved to 49% and LBBB did not occur until a heart rate of 126bpm was attained during treadmill exercise. It appears that pharmacological therapy may be useful for pati... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4443524 Mon, 07 Feb 2011 00:00:00 +0100 4443524 http://www.medworm.com/index.php?rid=4416329&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F2 Intravascular ultrasound (IVUS) is an invasive modality which provides cross-sectional images of a coronary artery. In these images both the lumen and outer vessel wall can be identified and accurate estimations of their dimensions and of the plaque burden can be obtained. In addition, further processing of the IVUS backscatter signal helps in the characterization of the type of the plaque and thus it has been used to study the natural history of the atherosclerotic evolution. On the other hand its indigenous limitations do not allow IVUS to assess accurately stent struts coverage, existence of thrombus or exact site of plaque rupture and to identify some of the features associated with increased plaque vulnerability. In order this information to be obtained, other modalities such as optic... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4416329 Sun, 30 Jan 2011 00:00:00 +0100 4416329 http://www.medworm.com/index.php?rid=4357956&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F9%2F1%2F1 Conclusion: Presumptive myocarditis of possible viral origin characterized by ST elevation mimicking myocardial infarction, good short term prognosis and some risk for recurrence is relatively frequent in young males and appears as a distinct clinical condition. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4357956 Tue, 18 Jan 2011 00:00:00 +0100 4357956 http://www.medworm.com/index.php?rid=4247649&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F54 Conclusion: The prevalence of suspected HCM in young teenagers is approximately 0.2 %. This prevalence appears to be higher in African Americans. However, due to small number of African Americans in our population, our result needs to be confirmed in larger trials. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4247649 Fri, 10 Dec 2010 00:00:00 +0100 4247649 http://www.medworm.com/index.php?rid=4243694&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F53 Conclusions: MAD is a common finding in myxomatous mitral valve disease patients, easily recognizable by transthoracic echocardiography. It is more prevalent in women and often associated with chest pain. MAD significantly disturbs mitral annular function and when severe predicts the occurrence of NSVT. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4243694 Thu, 09 Dec 2010 00:00:00 +0100 4243694 http://www.medworm.com/index.php?rid=4201807&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F51 This study assessed the additional diagnostic power of pocket size device by both experts operators and trainees in comparison with physical examination and its appropriateness of use in comparison with standard echo machine in a non-cardiologic population.Three hundred four consecutive non cardiologic outpatients underwent a sequential assessment including physical examination, pocket size imaging device and standard Doppler-echo exam. Pocket size device was used by both expert operators and trainees (who received specific training before the beginning of the study). All the operators were requested to give only visual, qualitative insights on specific issues. All standard Doppler-echo exams were performed by expert operators.One hundred two pocket size device exams were performed by expe... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4201807 Fri, 26 Nov 2010 00:00:00 +0100 4201807 http://www.medworm.com/index.php?rid=4198871&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F50 Pulmonary embolism is a common cardiovascular emergency, but it is still often misdiagnosed due to its unspecific clinical symptoms. Elevated troponin concentrations are associated with greater morbidity and mortality in patients with pulmonary embolism. Right ventricular ischemia due to increased right ventricular afterload is believed to be underlying mechanism of elevated troponin values in acute pulmonary embolism, but a paradoxical coronary artery embolism through opened intra-artrial communication is another possible explanation as shown in our case report. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4198871 Wed, 24 Nov 2010 00:00:00 +0100 4198871 http://www.medworm.com/index.php?rid=4163684&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F49 We present a case of a basal inferoposterior aneurysm of the left ventricle in a 23 year old male patient with DMD. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4163684 Sun, 14 Nov 2010 00:00:00 +0100 4163684 http://www.medworm.com/index.php?rid=4161125&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F48 When a physiological (exercise) stress echo is scheduled, interest focuses on wall motion segmental contraction abnormalities to diagnose ischemic response to stress, and on left ventricular ejection fraction to assess contractile reserve. Echocardiographic evaluation of volumes (plus standard assessment of heart rate and blood pressure) is ideally suited for the quantitative and accurate calculation of a set of parameters allowing a complete characterization of cardiovascular hemodynamics (including cardiac output and systemic vascular resistance), left ventricular elastance (mirroring left ventricular contractility, theoretically independent of preload and afterload changes heavily affecting the ejection fraction), arterial elastance, ventricular arterial coupling (a central determinant ... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4161125 Sat, 13 Nov 2010 00:00:00 +0100 4161125 http://www.medworm.com/index.php?rid=4080111&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F46 Conclusions: Despite the small size of this study, these data indicate that recent acute stroke is not necessarily associated with a clinically important reduction in FMD. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4080111 Mon, 18 Oct 2010 23:00:00 +0100 4080111 http://www.medworm.com/index.php?rid=4080110&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F47 The crista terminalis is a normal anatomical structures within the right atrium that is not normally visualised in the standard views obtained while performing a transthoracic echocardiogram. In this case report, transthoracic echocardiography suggested the presence of a right atrial mass in a patient with end stage renal disease. However, subsequent transesophageal echocardiography revealed that the right atrial mass was actually a thick muscular bridge in the right atrium consistent with a prominent crista terminalis. An understanding of the anatomy and the echocardiographic appearance of a prominent crista terminalis will minimize the misdiagnosis of this structure avoiding unnecessary expensive additional tests. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4080110 Mon, 18 Oct 2010 23:00:00 +0100 4080110 http://www.medworm.com/index.php?rid=4034287&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F45 Background: Three dimensional echocardiography (3DE) approaches the accuracy of cardiac magnetic resonance in measuring left ventricular (LV) volumes and ejection fraction (EF). The multibeat modality in comparison to single-beat (SB) requires breath-hold technique and regular heart rhythm which could limit the use of this technique in patients with atrial fibrillation (AF) due to stitching artifact. The study aimed to investigate whether SB full volume 3DE acquisition reduces inter- and intraobserver variability in assessment of LV volumes and EF in comparison to four-beat (4B) ECG-gated full volume 3DE recording in patients with AF. Methods: A total of 78 patients were included in this study. Fifty-five with sinus rhythm (group A) and 23 having AF (group B). 4B and SB 3DE was performed i... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4034287 Mon, 04 Oct 2010 23:00:00 +0100 4034287 http://www.medworm.com/index.php?rid=4008634&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F43 Conclusions: LV circumferential and posterior wall radial strain change after relief of pulmonary arterial obstruction in patients with CTEPH, and these improvements occur rapidly. These changes in LV strain may reflect effects from improved LV diastolic filling, and may be useful non-invasive markers of successful PTE. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=4008634 Sun, 26 Sep 2010 23:00:00 +0100 4008634 http://www.medworm.com/index.php?rid=3990827&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F42 Conclusion: Patchy pericardial adhesions not only negatively impact LV mechanical functioning but the decrease of VFT from normal to suboptimal value suggests impairment of transmitral flow efficiency. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3990827 Tue, 21 Sep 2010 23:00:00 +0100 3990827 http://www.medworm.com/index.php?rid=3971391&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F41 Conclusions: Overall, the applied technique can favorably display the pertinent echocardiographic planes. Description of the presented method provides a logical approach to explore the fetal heart volumes. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3971391 Tue, 14 Sep 2010 23:00:00 +0100 3971391 http://www.medworm.com/index.php?rid=3940930&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F39 DiscussionAlthough ultrasonic duplex Doppler methods are widely used in carotid artery diagnosis, there is disagreement about how the examinations should be performed and how the results should be validated. In clinical trails, a centralized reading center can unify the methods. Because the goals of research examinations are different from those of clinical examinations, screening and diagnostic clinical examinations may require fewer velocity measurements. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3940930 Mon, 06 Sep 2010 23:00:00 +0100 3940930 http://www.medworm.com/index.php?rid=3940929&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F40 Conclusions: It has been shown possible to automate a model that can be used for evaluating the in vitro accuracy and precision of ultrasound modalities measuring deformation. Sonomicrometry and Speckle Tracking Ultrasound had acceptable agreement. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3940929 Mon, 06 Sep 2010 23:00:00 +0100 3940929 http://www.medworm.com/index.php?rid=3926967&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F36 Quadricuspid aortic valve is a rare congenital malformation of the aortic valve. Its diagnosis is often missed even with the use of transthoracic echocardiogram. Many of these patients progress to aortic incompetence later in life, hence requiring surgical intervention.In the case described in this report, a 61-year-old woman is presented with the features of congestive heart failure. The preoperative transthoracic echocardiogram disclosed a moderate to severe aortic valve insufficiency but failed to reveal the quadricuspid aortic value anomaly. This case underscores the important role of three-dimensional transesophageal echocardiography for the diagnosis of quadricuspid aortic valve. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3926967 Wed, 01 Sep 2010 23:00:00 +0100 3926967 http://www.medworm.com/index.php?rid=3926966&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F37 Carcinoid is a rare malignancy originating from enterochromaffin cells and is clinically characterized by flushing, diarrhea and bronchospasm, due to secretion of vasoactive substances. A dreaded complication is carcinoid heart disease, which mainly affects right cardiac chambers, resulting in thickened, immobile and retracted tricuspid and pulmonary valves. In the current report, a case of a 60-year old female presenting with symptoms of right heart failure is described. Transthoracic two-dimensional and real-time three-dimensional echocardiography findings, as well as biochemical markers, including pro-BNP and NT-pro-BNP, were consistent with carcinoid syndrome. The histological diagnosis of carcinoid was confirmed after surgical resection of an ovarian mass. (Source: Cardiovascular Ultr... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3926966 Wed, 01 Sep 2010 23:00:00 +0100 3926966 http://www.medworm.com/index.php?rid=3923350&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F35 Conclusions: A significant reduction of the longest intraventricular delay correlates with superior response to CRT. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3923350 Tue, 31 Aug 2010 23:00:00 +0100 3923350 http://www.medworm.com/index.php?rid=3874913&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F33 Conclusions: We successfully demonstrated the detailed structure and location of an anomalous descending aorta on the oblique imaging plane of RT-3DE, which may not be readily available by traditional 2D method. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3874913 Mon, 16 Aug 2010 23:00:00 +0100 3874913 http://www.medworm.com/index.php?rid=3874912&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F34 Conclusion: CFR in Y-G is sometimes reduced in both left territories postoperatively but it improves at six months follow-up. A follow-up can be done non-invasively by TTE and CFR evaluation. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3874912 Mon, 16 Aug 2010 23:00:00 +0100 3874912 http://www.medworm.com/index.php?rid=3863979&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F32 Conclusions: MRI might be preferred when small changes in functional parameters like LV EF, LA EF, and PV index are of clinical importance to disease management like asymptomatic MR patients that we follow up for appropriate surgery timing. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3863979 Thu, 12 Aug 2010 23:00:00 +0100 3863979 http://www.medworm.com/index.php?rid=3814986&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F31 Conclusions: In patients with STEMI treated by PCI, the recovery of LV subendocardial shortening strain seen in the longitudinal direction underlies the improvement in LV global function despite persistent abnormalities in radial mechanics and wall motion score index. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3814986 Mon, 02 Aug 2010 23:00:00 +0100 3814986 http://www.medworm.com/index.php?rid=3789499&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F29 Background: Increased muscle mass index of the left ventricle (LVMi) is an independent predictor for the development of symptoms in patients with asymptomatic aortic stenosis (AS). While the onset of clinical symptoms and left ventricular systolic dysfunction determines a poor prognosis, the standard echocardiographic evaluation of LV dysfunction, only based on measurements of the LV ejection fraction (EF), may be insufficient for an early assessment of imminent heart failure. Contrary, 2-dimensional speckle tracking (2DS) seems to be superior in detecting subtle changes in myocardial function. The aim of the study was to assess these LV function deteriorations with global longitudinal strain (GLS) analysis and the relations to LVMi in patients with AS and normal EF. Methods: 50 patients w... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3789499 Sun, 25 Jul 2010 23:00:00 +0100 3789499 http://www.medworm.com/index.php?rid=3774814&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F28 Background: Congestive hepatomegaly might be the first sign for pulmonary hypertension. Apparent diffusion coefficient (ADC) value obtained with quantitative diffusion-weighted magnetic resonance imaging (DW-MRI) is affected by liver fibrosis and perfusion. We aimed to evaluate the diagnostic value of DW-MRI in cooperation with biochemical markers, ultrasonography (US) and echocardiography (ECHO) in determining the degree of hepatic congestion secondary to pulmonary hypertension (PHT). Methods: 35 patients with PHT and 26 control subjects were included in the study. PHT was diagnosed if pulmonary artery systolic pressure (PASP) was measured above 35 mmHg with ECHO. Study group was classified into mild and moderate PHT. DW-MRI was performed with b-factors of 0, 500 and 1000 sec/mm^2. Mean A... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3774814 Tue, 20 Jul 2010 23:00:00 +0100 3774814 http://www.medworm.com/index.php?rid=3752474&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F27 Patients with advanced idiopathic pulmonary artery hypertension have often a chronic pericardial effusion. It is the result of increased transudation and impaired re-absorption due to elevated venous pressure. These patients have pre-existent symptoms and signs of chronic right heart failure. High degree of suspicion is required to detect of development of an atypical form of tamponade with isolated compression of left heart chambers. Transthoracic echocardiography provides a rapid access to the correct diagnosis, a prompt relief of symptoms following the ultrasound guided pericardiocentesis and important diagnostic tool for regular follow up of patients thereafter as shown in our case report. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3752474 Tue, 13 Jul 2010 23:00:00 +0100 3752474 http://www.medworm.com/index.php?rid=3748723&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F26 Conclusion: Isolated cleft is a rare aberration, that has to be known in order to be diagnosed. Transthoracic and transesophageal echocardiography is the most useful non invasive technique for cleft diagnosis and to indicate the right surgical correction. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3748723 Mon, 12 Jul 2010 23:00:00 +0100 3748723 http://www.medworm.com/index.php?rid=3725922&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F25 Background Pulmonary arterial hypertension (PAH) in patients with systemic sclerosis is associated with a poor prognosis, but this can be improved by early disease detection. Abnormal pulmonary and cardiac function can be detected early by means of echocardiography, whereas right heart catheterization is usually performed later.Objectives The purpose of this prospective study was to detect early the presence of pulmonary artery vasculopathy in patients with verified systemic sclerosis without significant pulmonary fibrosis, normal lung volumes and a mildly reduced lung diffusion capacity of carbon monoxide (DLCO).Methods Nineteen consecutive female NYHA class I-II patients with scleroderma and aPAPs of >35 mm/Hg measured by echocardiography, were enrolled between September 2007 andSeptembe... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3725922 Sun, 04 Jul 2010 23:00:00 +0100 3725922 http://www.medworm.com/index.php?rid=3712584&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F24 Conclusions: Our data indicate that ultrasound assessment of PRFT may have potential as a marker of increased endothelial damage with specific involvement of the ocular vascular region in HIV-1-infected patients. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3712584 Tue, 29 Jun 2010 23:00:00 +0100 3712584 http://www.medworm.com/index.php?rid=3674991&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F22 Conclusions: Since pressure equalization may increase the dynamic range of strain imaging, the effect of the surrounding tissue on strain should be incorporated into models of arterial strain, particularly when the pressure equalization technique is used. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3674991 Thu, 17 Jun 2010 23:00:00 +0100 3674991 http://www.medworm.com/index.php?rid=3674990&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F23 We report a rare case of a massive right atrial myxoma causing tricuspid valve obstruction and presenting as syncope and exertional dyspnea. This case illustrates the influence of myxoma's size, position and mobility as well as patient's body posture and respiration to the development of signs and symptoms. Three-dimensional echocardiography proved useful in surgery planning, allowing a better definition of the tumor outline and attachment. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3674990 Thu, 17 Jun 2010 23:00:00 +0100 3674990 http://www.medworm.com/index.php?rid=3639462&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F21 Conclusion: Echocardiography is useful for the screening of patients with pulmonary hypertension and PVR > 2 WU. It remains disappointing for accurate assessment of high PVR. TVI lvot may be an alternative to TVI rvot for patients for whom accurate TVI rvot measurement is not possible. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3639462 Sun, 06 Jun 2010 23:00:00 +0100 3639462 http://www.medworm.com/index.php?rid=3616930&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F20 Conclusions: Second-Opinion Stress Tele-Echocardiography can effectively be performed in a network aimed to safely expand the heart donor pool for heart transplant. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3616930 Mon, 31 May 2010 23:00:00 +0100 3616930 http://www.medworm.com/index.php?rid=3569147&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F18 Acute pulmonary embolism (PE) is a common disease which frequently results in life-threatening right ventricular (RV) failure. High-risk PE, presenting with hypotension, shock, RV dysfunction or right heart thrombus is associated with a high mortality, particularly during the first few hours. Accordingly, it is important to commence effective therapy as soon as possible. In the case described in this report, a 49-year-old woman with myotonic dystrophy type 1 presented with acute respiratory failure and hypotension. Transthoracic echocardiography showed signs of right heart failure and a mobile right heart mass highly suspicious of a thrombus. Based on echocardiographic findings, acute thrombolysis was performed resulting in hemodynamic stabilization of the patient and complete resolution o... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3569147 Sat, 15 May 2010 23:00:00 +0100 3569147 http://www.medworm.com/index.php?rid=3554604&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F17 Conclusion: Fetal cardiac volume assessed by 3DUS using XI VOCAL method is highly reproducible between 19 to 34 gestational weeks. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3554604 Tue, 11 May 2010 23:00:00 +0100 3554604 http://www.medworm.com/index.php?rid=3540832&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F16 Objectives: We aimed to compare the incremental value of contrast myocardial perfusion imaging (MPI) for the detection of intermediate versus severe coronary artery stenosis during dipyridamoleatropine echocardiography (DASE). Background: Wall motion (WM) assessment during stress-echocardiography demonstrates suboptimal sensitivity to detect coronary artery disease (CAD), particularly in patients with isolated intermediate (50%-70%) coronary stenosis. Methods: We performed DASE with MPI in 150 patients with a suspected chest pain syndrome who were given clinical indication to coronary angiography. Results: When CAD was defined as the presence of a [greater than or equal to]50% stenosis, the addition of MPI increased sensitivity (+30%) and decreased specificity (-14%), with a final increase... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3540832 Wed, 05 May 2010 23:00:00 +0100 3540832 http://www.medworm.com/index.php?rid=3492787&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F14 This study aimed at exploring the correlation of LA longitudinal function by STE and Doppler measurements with direct measurements of LV filling pressures in patients with heart failure. Methods: A total of 36 patients with advanced systolic heart failure (ejection fraction less than or equal to 35%), undergoing right heart catheterization, were studied. Simultaneously to pulmonary capillary wedge pressure (PCWP) determination, peak atrial longitudinal strain (PALS) and mean E/Em ratio were measured in all subjects by two independent operators. PALS values were obtained by averaging all segments (global PALS), and by separately averaging segments measured in the 4-chamber and 2-chamber views. Results: Not significant correlation was found between mean E/Em ratio and PCWP (R=0.15). A close ... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3492787 Tue, 20 Apr 2010 23:00:00 +0100 3492787 http://www.medworm.com/index.php?rid=3459128&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F12 AimsBiventricular pacing (BiP) is an effective treatment in systolic heart failure (HF) patients with prolonged QRS. However, approximately 35% of the patients receiving BiP are classified as non-responders. The aim of this study is to evaluate the acute effects of VV-optimization on systolic heart function. Methods: Twenty-one HF patients aged 72 (46-88) years, QRS 154 (120-190) ms, were studied with echocardiography, Tissue Doppler Imaging (TDI) and 3D-echo the first day after receiving a BiP device. TDI was performed; during simultaneous pacing (LV-lead pacing 4 ms before the RV-lead) and during sequential pacing (LV 20 and 40 ms before RV and RV 20 and 40 ms before LV-lead pacing). Systolic heart function was studied by tissue tracking (TT) for longitudinal function and systolic maxima... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3459128 Sun, 11 Apr 2010 23:00:00 +0100 3459128 http://www.medworm.com/index.php?rid=3401651&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F10 Conclusions: RT3DSE is more vulnerable than 2D due to tachycardia, signal quality, patient decubitus and suboptimal resting image quality, making exercise RT3DSE less attractive than pharmacological stress. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3401651 Wed, 24 Mar 2010 00:00:00 +0100 3401651 http://www.medworm.com/index.php?rid=3393180&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F9 We described a case of a patient with dilated cardiomyopathy and cardiac conduction defects who presented a strong family history of sudden cardiac death. Genetic screening of lamin A/C gene revealed in proband the presence of a novel missense mutation (R189W), near the most prevalent lamin A/C mutation (R190W), suggesting a 'hot spot' region at exon 3. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3393180 Mon, 22 Mar 2010 00:00:00 +0100 3393180 http://www.medworm.com/index.php?rid=3384654&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F8 Conclusion: This study shows that increased IMT of the common carotid artery after RT is radiation-dose-related. Therefore it is important to monitor IMT, which can be used as an imaging biomarker for early diagnosis of cerebrovascular disease in patients who have had radiotherapy for treatment of cancer of the head and neck and who are at increased risk for accelerated atherosclerosis in carotid arteries. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3384654 Fri, 19 Mar 2010 00:00:00 +0100 3384654 http://www.medworm.com/index.php?rid=3376590&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F7 Hypertrophic cardiomyopathy (HCM) is one of the most common inherited cardiomyopathy.The identification of patients with HCM is sometimes still a challenge. Moreover, the pathophysiology of HCM is complex because of left ventricular hyper-contractile state, diastolic dysfunction, ischemia and obstruction which often are coexistent in the same patient. In this review, we discuss the current and emerging echocardiographic methodology that can help physicians in the correct diagnostic and pathophysiological assessment of patients with HCM. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3376590 Wed, 17 Mar 2010 00:00:00 +0100 3376590 http://www.medworm.com/index.php?rid=3368730&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F6 We report a case of paradoxical embolism with stroke in an oncological patient with a huge CVC thrombus playing "ping-pong" with an hypermobile ASA with a PFO. We review the management of hypercoagulability in oncologic patients and discuss the potential role of routine transthoracic echocardiography before the implantation of long term central venous catheters to identify predisposing conditions to paradoxical embolism and select patients for anticoagulant therapy. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3368730 Tue, 16 Mar 2010 00:00:00 +0100 3368730 http://www.medworm.com/index.php?rid=3356966&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F5 Background: : The effect of aggressive medical therapy on quantitative coronary plaque burden is not generally known, especially in ethnic Chinese. AIMS: We reasoned that Cardiac CT could conveniently quantify early coronary atherosclerosis in our patient population, and hypothesized that serial observation could differentiate the efficacy of aggressive medical therapy regarding progression and regression of the atherosclerotic process, as well as evaluating the additional impact of life-style modification and the relative effects of the application of statin therapy.MethodS: We employed a standardized Cardiac CT protocol to serially scan 113 westernized Hong Kong Chinese individuals (64 men and 49 women) with chest pain and positive coronary risk factors. In all cases included for this se... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3356966 Fri, 12 Mar 2010 00:00:00 +0100 3356966 http://www.medworm.com/index.php?rid=3199554&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F3 Conclusion: IVA is a useful tool with high-predictive power to detect early right ventricular systolic impairment in patients with SSc and without pulmonary hypertension. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3199554 Fri, 22 Jan 2010 00:00:00 +0100 3199554 http://www.medworm.com/index.php?rid=3162279&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F8%2F1%2F2 Conclusions: In patients with acute STEMI, WMSI, EF, strain, and displacement showed significant changes between the pre- and post PCI exam. In a ROC-analysis, strain had 64% sensitivity at 80% specificity and WMSI around 90% sensitivity at 80% specificity for the detection of scar with transmurality [greater than or equal to]50% at follow-up. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3162279 Mon, 11 Jan 2010 00:00:00 +0100 3162279 http://www.medworm.com/index.php?rid=3134879&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F59 Conclusions: The findings of this study show that increase in CIMT is associated with the presence and extent of CAD. In conclusion, we demonstrated the usefulness of carotid intima-media thickness in predicting coronary artery disease but large-scale studies are required to define its role in clinical practice. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3134879 Thu, 31 Dec 2009 00:00:00 +0100 3134879 http://www.medworm.com/index.php?rid=3113537&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F58 Conclusions: TTE is a feasible method for complete demonstration of coronary flow in the LM, the proximal Cx and the different segments of LAD, but less suitable for the RCA and mid and distal segments of the Cx. (ClinicalTrials.gov number NTC00281346.) (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3113537 Tue, 22 Dec 2009 00:00:00 +0100 3113537 http://www.medworm.com/index.php?rid=3083844&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F57 Secondary or functional mitral regurgitation (FMR) represents an increasing feature of mitral valve disease characterized by abnormal function of anatomically normal leaflets in the context of the impaired function of remodelled left ventricles. The anatomic and pathophysiological basis of FMR are briefly analyzed; in addition, the role of exercise echocardiography for the assessment of FMR is discussed in view of its relevance to clinical practice. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3083844 Mon, 14 Dec 2009 00:00:00 +0100 3083844 http://www.medworm.com/index.php?rid=3035351&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F56 ObjectiveTo establish a link between hypercholesterolemia and myocardial dysfunction. Background: Heart failure is a complex disease involving changes in systolic and diastolic function. Newer echocardiographic imaging modalities may be able to detect discreet changes in myocardial function associated with hypercholesterolemia. Therefore we sought to establish a link between hypercholesterolemia and myocardial dysfunction with Tissue Doppler Imaging (TDI). Methods: Twenty-seven rabbits were studied: 7 were fed normal chow (group 1) and 20 a high cholesterol diet (10 with ezetimibe, 1mg/kg/day; group 2 and 10 without, group 3). Echocardiographic images were obtained under general anesthesia. Serum cholesterol levels were obtained at baseline, 3 and 6 months and myocardial cholesterol levels... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3035351 Fri, 27 Nov 2009 00:00:00 +0100 3035351 http://www.medworm.com/index.php?rid=3010928&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F55 The assessment of regional volumes is an option for analysis of the response of LV segments to interventions such as revascularization or cell therapy. We sought to compare regional volumes from 3D-echocardiography (3DE) with cardiac magnetic resonance (CMR) over follow-up.CMR regional volumes were assessed at baseline and after one year follow-up in 30 unselected patients (28men, 65+/-11years) presenting for evaluation of cardiac function with previous infarction. 3DE images were also gathered over 4 cardiac cycles and measurements were performed off-line. CMR images were obtained using a 1.5 Tesla scanner and measured offline by method of landmarks and by centre of mass. Regional volumes were measured at end-diastole (rEDV) and end-systole (rESV) and the change in volume was compared for... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=3010928 Thu, 19 Nov 2009 00:00:00 +0100 3010928 http://www.medworm.com/index.php?rid=2998158&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F54 Conclusions: In our study population, patients with anterior leaflet prolapse had a higher proportion of residual MR 1+/2+ as compared to those with posterior leaflet prolapse after repair of mitral valve. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2998158 Tue, 17 Nov 2009 00:00:00 +0100 2998158 http://www.medworm.com/index.php?rid=2998159&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F53 Conclusions: Feature tracking analysis of cine-MR displays velocity, displacement and strain in the radial and longitudinal direction and may be used for the detection of transmural scar. The accuracy and repeatability of the radial functional measurements is satisfactory and global measures agree. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2998159 Mon, 16 Nov 2009 00:00:00 +0100 2998159 http://www.medworm.com/index.php?rid=2961718&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F51 IntroductionTricuspid Annular Plane Systolic Excursion (TAPSE) has independent prognostic value in heart failure patients but may be influenced by left ventricular (LV) ejection fraction. The present study assessed the association of TAPSE and clinical factors, global and regional LV function in 634 patients admitted for symptomatic heart failure.Methods & ResultsTAPSE were correlated with global and regional measures of longitudinal LV function, segmental wall motion scores and measures of diastolic LV function as measured from transthoracic echocardiography.LV ejection fraction, wall motion index scores, atrio-ventricular annular plane systolic ex-cursion of the mitral annulus were significantly related to TAPSE. Septal and posterior mi-tral annular plane systolic excursion (beta=0.56, p... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2961718 Wed, 04 Nov 2009 00:00:00 +0100 2961718 http://www.medworm.com/index.php?rid=2976106&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F50 Originally described in 1953, today the so-called J-wave is the source of much controversy. As a marker of so-called "early repolarization", this variant has been regarded as a totally benign variant since the 1960's. However, since then a wealth of data have indicated that the J-wave may be a marker of a highly arrhythmogenic substrate with a resultant high risk of sudden cardiac death.In this case report a case of an accessory papillary muscle with a prominent J-wave is described. This may be the first of many possible cases where papillary muscle variants may be the cause of the J-wave. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2976106 Thu, 29 Oct 2009 00:00:00 +0100 2976106 http://www.medworm.com/index.php?rid=2941798&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F50 Originally described in 1953, today the so-called J-wave is the source of much controversy. As a marker of so-called "early repolarization", this variant has been regarded as a totally benign variant since the 1960`s. However, since then a wealth of data have indicated that the J-wave may be a marker of a highly arrhythmogenic substrate with a resultant high risk of sudden cardiac death.In this case report a case of an accessory papillary muscle with a prominent J-wave is described. This may be the first of many possible cases where papillary muscle variants may be the cause of the J-wave. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2941798 Thu, 29 Oct 2009 00:00:00 +0100 2941798 http://www.medworm.com/index.php?rid=2937213&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F49 Background: B-type natriuretic peptide (BNP) is increased in post-cardiac surgery patients, however the mechanisms underlying BNP release are still unclear. In the current study, we aimed to assess the relationship between postoperative BNP levels and left ventricular filling pressures in post-cardiac surgery patients. Methods: We prospectively enrolled 134 consecutive patients referred to our Center 8+/-5 days after cardiac surgery. BNP was sampled at hospital admission and related to the following echocardiographic parameters: left ventricular (LV) diastolic volume (DV), LV systolic volume (SV), LV ejection fraction (EF), LV mass, relative wall thickness (RWT), indexed left atrial volume (iLAV), mitral inflow E/A ratio, mitral E wave deceleration time (DT), ratio of the transmitral E wav... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2937213 Wed, 28 Oct 2009 00:00:00 +0100 2937213 http://www.medworm.com/index.php?rid=2910974&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F48 Background: Transthoracic echocardiography left ventricular wall thickness is often increased in master athletes and it results by intense physical training. Left Ventricular Hypertrophy can also be due to a constant pressure overload. Conventional Pulsed Wave (PW) Doppler analysis of diastolic function sometimes fails to distinguish physiological from pathological LVH.The aim of this study is to evaluate the role of Pulsed Wave Tissue Doppler Imaging in differentiating pathological from physiological LVH in the middle-aged population. Methods: we selected a group of 80 master athletes, a group of 80 sedentary subjects with essential hypertension and an apparent normal diastolic function at standard PW Doppler analysis. The two groups were comparable for increased left ventricular wall thi... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2910974 Tue, 20 Oct 2009 23:00:00 +0100 2910974 http://www.medworm.com/index.php?rid=2892925&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com Conclusion: Our results suggest that combination of TDI and TSI with intrinsic plausibility control improves intra- and interobserver variability and allows easy and reliable assessment of cardiac asynchrony. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2892925 Thu, 24 Sep 2009 23:00:00 +0100 2892925 http://www.medworm.com/index.php?rid=2776818&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F45 Conclusion: We emphasize the leading role of transthoracic and transoesophageal echocardiography in the diagnosis of intracavitary cardiac tumours. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2776818 Mon, 07 Sep 2009 23:00:00 +0100 2776818 http://www.medworm.com/index.php?rid=2764677&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F44 A 25-year-old woman with a history of kidney transplantation for lupus nephritis was referred for the evaluation and management of a mass incidentally found on echocardiography. An oval and pedunculated mass attached to the tricuspid valve was managed with nonsurgical treatment. No symptoms and complications attributable to the mass developed. Three years later, the size of the mass decreased. Here we report the case of a probable cardiac papillary fibroelastoma (PFE), a mobile mass, with a stalk on the septal leaflet of the tricuspid valve that was managed for three years without surgical treatment. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2764677 Thu, 03 Sep 2009 23:00:00 +0100 2764677 http://www.medworm.com/index.php?rid=2755565&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F43 Echocardiography represents an invaluable diagnostic tool for the detection of intracardiac masses while simultaneously provides information about their size, location, mobility and attachment site as well as the presence and extent of any consequent hemodynamic derangement.A 29-year-old asymptomatic young woman with incidental transthoracic echocardiographic (TTE) discovery of an aortic valve mass is presented. The 2-dimensional TTE showed a mobile, pedunculated mass, attached by a thin stalk to the aortic surface of the right coronary aortic cusp at the junction of its base with the anterior aortic wall. The importance of valve sparing tumour resection even in asymptomatic patients is emphasised. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2755565 Tue, 01 Sep 2009 23:00:00 +0100 2755565 http://www.medworm.com/index.php?rid=2732716&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F41 Conclusion: Visual estimation of LVEF both using 2D and TP by an experienced reader correlates well with quantitative EF determined by RT3DE. There is an apparent trend towards a smaller variability using TP in comparison to 2D, this was however not statistically significant. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2732716 Mon, 24 Aug 2009 23:00:00 +0100 2732716 http://www.medworm.com/index.php?rid=2728964&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F40 After publication of this work [1], we noted that Figure 2 Y axis is labeled incorrectly as CA IMT (mm). The correct label is "CA Diameter (cm)".The following statement should also be deleted from the text: "Twenty-three of 30 (76%) healthy subjects responded with vasodilation" under subheading "Normal Human Volunteers". (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2728964 Mon, 24 Aug 2009 23:00:00 +0100 2728964 http://www.medworm.com/index.php?rid=2718431&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F39 Background: Cardiac resynchronization therapy (CRT) improves left ventricular (LV) volumes, mitral regurgitation (MR) severity and symptoms of patients with heart failure (HF). However, [greater than or equal to] 30% of patients have no significant clinical or echocardiographic improvement following CRT. Reverse remodeling after CRT correlates with improved clinical outcomes. We hypothesized that in NT-pro BNP monitoring is accurate to identify responders following CRT. Methods: 42 consecutive patients (mean age 66+/-12 years, male 68%) with HF undergoing CRT were prospectively enrolled. Responders at follow-up were defined by echocardiography (decrease in LV end systolic volume [greater than or equal to] 15%). Echocardiography and NT-pro BNP measurement were performed at baseline and repe... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2718431 Wed, 19 Aug 2009 23:00:00 +0100 2718431 http://www.medworm.com/index.php?rid=2711019&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F38 Background: Although echocardiography is commonly used to evaluate cardiac function after MI, CMR may provide more accurate functional assessment but has not been adequately compared with echo. The primary study objective was to compare metrics of left ventricular volumes and global and regional function determined by cardiac magnetic resonance (CMR) and echocardiography (echo) in patients (pts) with recent myocardial infarction (MI). Methods: To compare CMR with echo, 47 consecutive pts (70% male; mean age=66+/-11 years) with MI >6 wks previously and scheduled for imaging evaluation were studied by both echo and CMR within 60 min of each other. Readers were blinded to pt information. Pearson's correlation coefficient, paired t-tests, and chi-square tests were used to compare CMR and echo ... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2711019 Mon, 17 Aug 2009 23:00:00 +0100 2711019 http://www.medworm.com/index.php?rid=2641004&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F37 Conclusions: This study for the first time confirms that, although a 60% of patients with HCM coming from a regional Greek population are in low risk for SD, a substantial proportion (almost 20%) carries a high risk for SD justifying prophylactic therapy with amiodaron or ICD implantation. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2641004 Sat, 25 Jul 2009 23:00:00 +0100 2641004 http://www.medworm.com/index.php?rid=2616345&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F36 In this report, an unusual case of a 61 year-old male with a giant apical LV pseudoaneurysm after an unnoticed MI is presented. On coronary angiogram myocardial bridging of the distal left anterior descending artery (LAD) was judged to be the infarct related lesion. The echocardiographic diagnosis allowed for a timely surgical intervention which resulted in the patient`s full recovery. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2616345 Sun, 19 Jul 2009 23:00:00 +0100 2616345 http://www.medworm.com/index.php?rid=2575215&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F33 Background: Regular physical activity and exercise are well-known cardiovascular protective factors. Many elderly patients with heart failure find it difficult to exercise on land, and hydrotherapy (training in warm water) could be a more appropriate form of exercise for such patients. However, concerns have been raised about its safety.The aim of this study was to investigate, with echocardiography and Doppler, the acute effect of warm water immersion (WWI) and effect of 8 weeks of hydrotherapy on biventricular function, volumes and systemic vascular resistance. A secondary aim was to observe the effect of hydrotherapy on brain natriuretic peptide (BNP). Methods: Eighteen patients [age 69+/-8 years, left ventricular ejection fraction 31+/-9%, peakVO2 14.6+/-4.5 mL/kg/min] were examined wi... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2575215 Sun, 05 Jul 2009 23:00:00 +0100 2575215 http://www.medworm.com/index.php?rid=2575214&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F34 We reported a case of 64 year-old patient with BAV and a history of ankylosing spondylitis (AS) and systemic lupus erythematosus (SLE), and who developed ascending thoracic aortic aneurysm. The patient presented also the homozygosity for genetic variants of MMP9, ACE, MTHFR and PAI-1 genes. Gene-environmental interactions may represent an additional pathogenetic dimension in the still challenging management of the abnormalities of the aortic wall, including dilatation, aneurysm and dissection. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2575214 Sun, 05 Jul 2009 23:00:00 +0100 2575214 http://www.medworm.com/index.php?rid=2575213&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F35 Conclusions: Although the normal ranges for RVVIs and RVAIs presented in this study reflect RV inflow tract dimensions only, the data presented may still be regarded as a useful tool in clinical practice, especially for RVEF and RVAF. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2575213 Sun, 05 Jul 2009 23:00:00 +0100 2575213 http://www.medworm.com/index.php?rid=2567536&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F31 Originally described by Brock and Teare, today hypertrophic cardiomyopathy is clinically defined as left (or right) ventricular hypertrophy without a known cardiac or systemic cause, such as systemic hypertension, Fabry`s disease or aortic stenosis.Also appreciated today is the enormous genotypic and phenotypic heterogeneity of this disease with more than 300 mutations over more than 24 genes, encoding various sarcomeric, mitochondrial and calcium-handling proteins, all as genetic causes for hypertrophic cardiomyopathy.Phenotypically, the disease can vary from negligible to extreme hypertrophy, affecting either the left and/or right ventricle in an apical, midventricular or subaortic location.Left ventricular false tendons are thin, fibrous or fibromuscular structures that traverse the lef... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2567536 Thu, 02 Jul 2009 23:00:00 +0100 2567536 http://www.medworm.com/index.php?rid=2567535&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F32 Background: Brachial artery reactivity in response to shear stress is altered in subjects with hypertension. Since endothelial dysfunction is generalized, we hypothesized that carotid artery (CA) reactivity would also be altered in hypertension. Purpose: To compare (CA endothelium-dependent vasodilation in response to mental stress in normal and hypertensive subjects. Methods: We evaluated CA reactivity to mental stress in 10 young healthy human volunteers (aged 23+/-4 years), 20 older healthy volunteers (aged 49+/-11 years) and in 28 patients with essential hypertension (aged 51+/-13 years). In 10 healthy volunteers and 12 hypertensive subjects, middle cerebral artery (MCA) PW transcranial Doppler was performed before and 3 minutes after mental stress. Results: Mental stress by Stroop col... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2567535 Thu, 02 Jul 2009 23:00:00 +0100 2567535 http://www.medworm.com/index.php?rid=2495582&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F30 Air pollution is increasingly recognized as an important and modifiable determinant of cardiovascular diseases in urban communities. The potential detrimental effects are both acute and chronic having a strong impact on morbidity and mortality. The acute exposure to pollutants has been linked to adverse cardiovascular events such as myocardial infarction, heart failure and life-threatening arrhythmias. The long-terms effects are related to the lifetime risk of death from cardiac causes. The WHO estimates that air pollution is responsible for 3 million premature deaths each year. The evidence supporting these data is very strong nonetheless, epidemiologic and observational data have the main limitation of imprecise measurements. Moreover, the lack of clinical experimental models makes it di... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2495582 Tue, 23 Jun 2009 23:00:00 +0100 2495582 http://www.medworm.com/index.php?rid=2495583&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F29 In this study, the concordance between the myocardial velocity and displacement measurements using colour TD and different spectral TD procedures was evaluated. Methods: Left ventricular (LV) longitudinal systolic myocardial velocities and displacement during ejection period were quantified at the basal septal and lateral wall in 24 healthy individuals (4 women and 20 men, 34+/-12 years) using spectral TD, colour TD and M-mode recordings. Mean, maximal and minimal spectral TD systolic velocities and the corresponding displacement values were obtained by measurements at the outer and inner borders of the spectral velocity signal. The results were then compared with those obtained with the two other modalities used. Results: Systolic myocardial velocities derived from mean spectral TD freque... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2495583 Mon, 22 Jun 2009 23:00:00 +0100 2495583 http://www.medworm.com/index.php?rid=2495584&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F28 AimsReal-time perfusion (RTP) adenosine stress echocardiography (ASE) can be used to visually evaluate myocardial ischaemia. The RTP power modulation technique angio-mode (AM), provides images for off-line perfusion quantification using Qontrast(R) software, generating values of peak signal intensity (A), myocardial blood flow velocity (beta) and myocardial blood flow (Axbeta). By comparing rest and stress values, their respective reserve values (A-r, beta-r, Axbeta-r) are generated. We evaluated myocardial ischaemia by RTP-ASE Qontrast(R) quantification, compared to visual perfusion evaluation with 99mTc-tetrofosmin single-photon emission computed tomography (SPECT).Methods and ResultsPatients admitted to SPECT underwent RTP-ASE (SONOS 5500) using AM during Sonovue(R) infusion, before and... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2495584 Wed, 17 Jun 2009 23:00:00 +0100 2495584 http://www.medworm.com/index.php?rid=2482744&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F26 Conclusion: The detection of apical aneurysm by echocardiography in HCM patients may be complicated. Ventricular tachycardia arising from the scarred aneurysm wall may often occur, predisposing to sudden death. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2482744 Tue, 16 Jun 2009 04:00:00 +0100 2482744 http://www.medworm.com/index.php?rid=2482745&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F25 Conclusions: No significant association was found between the extent of angiographically visible coronary collaterals and systemic endothelial function assessed by FMD of the brachial artery. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2482745 Mon, 15 Jun 2009 04:00:00 +0100 2482745 http://www.medworm.com/index.php?rid=2445027&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F24 Conclusion: EE is a useful method to predict cardiac events in diabetic patients with suspected or known CAD. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2445027 Fri, 29 May 2009 04:00:00 +0100 2445027 http://www.medworm.com/index.php?rid=2438423&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F22 Conclusion: The test results clearly indicate that the state diagram has potential to be an efficient tool for visualization of cardiac dysfunction and for detection of NSTEMI. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2438423 Wed, 27 May 2009 04:00:00 +0100 2438423 http://www.medworm.com/index.php?rid=2438422&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F23 We describe popliteal arterial adventitial cystic disease which causes intermittent claudication in a young athletic man, with atypical manifestation, without loss of foot pulses on knee flexion nor murmur in the popliteal fossa. The findings obtained from Magnetic Resonance Imaging were non-diagnostic. The diagnosis resulted from Echo-Doppler ultrasonography along with peak exercise testing. Ultrasonography also provided useful physiopathological informations suggesting that a popliteal artery adventitial cyst can become symptomatic if muscle exertion increases fluid pressure within the cyst, enough to cause hemodynamically significant endoluminal stenosis. Rapid diagnosis is essential to prevent progressive claudication threatening limb viability. To guarantee this professional sportsman... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2438422 Wed, 27 May 2009 04:00:00 +0100 2438422 http://www.medworm.com/index.php?rid=2410468&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F21 Conclusion: Post-exercise contractility, diastolic time and pressure changes can be continuously measured by a cutaneous sensor. Heart disease affects not only exercise systolic performance, but also post-exercise recovery, diastolic time intervals and blood pressure changes - in our study, all of these were monitored by a non-invasive wearable sensor. Key words: contractility, diastolic function, pressure, heart failure, heart sensor, telemedicine (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2410468 Thu, 14 May 2009 04:00:00 +0100 2410468 http://www.medworm.com/index.php?rid=2394845&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F20 We present transthoracic echocardiography and combined PET/CT images of a case with a large right ventricular metastasis of leiomyosarcoma. The patient was placed on cytostatic drugs for palliative purposes, but passed away one month later because of an untreatable ventricular tackycardia. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2394845 Tue, 05 May 2009 04:00:00 +0100 2394845 http://www.medworm.com/index.php?rid=2317559&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F16 Conclusion: Three-dimensional echocardiography with semiautomatic border detection is a practical alternative for obtaining the left atrial volume in a time-efficient manner compared to the current standard. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2317559 Tue, 31 Mar 2009 04:00:00 +0100 2317559 http://www.medworm.com/index.php?rid=2317561&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F15 Conclusion: A TEE examination in cryptogenic stroke reveals contributing cardiogenic factors in about half of all patients. Younger patients had a higher prevalence of PFO, whereas older patients had more frequently atherosclerotic findings. Therefore, TEE examinations seem indicated in all patients with cryptogenic stroke – irrespective of age – because of specific therapeutic consequences. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2317561 Sat, 28 Mar 2009 04:00:00 +0100 2317561 http://www.medworm.com/index.php?rid=2292478&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F14 This report refers to such a case where post-catheterization haematoma was suspected to cause an obstruction of the femoral vein. Spectral Doppler recordings of blood flow in the common femoral vein, up-stream, distal to the hemorrhagic area, confirmed the diagnosis of obstruction by demonstrating changes in the venous flow pattern in the common femoral vein, consistent with venous hypertension. Due to the poor quality of the ultrasound images, the exact cause of the obstruction had to be established by another imaging modality, not affected by haemorrhages. CT showed that the common femoral vein was compressed at the puncture site by surrounding haemorrhages. Thus, when bleeding due to cardiac catheterization is associated with possible venous obstruction and findings by color Doppler are... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2292478 Thu, 26 Mar 2009 04:00:00 +0100 2292478 http://www.medworm.com/index.php?rid=2292480&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F13 The causes for ST-segment elevation other than myocardial infarction are numerous. The existence of left ventricular false tendons has been known for more than a century. Currently, the clinical entities associated with these left ventricular false tendons include innocent murmurs and premature ventricular contractions. A case report is presented where such a false tendon, attached to the interventricular septum, is responsible for striking ST-segment elevation in the anterior precordial leads. It is proposed that this is a newly observed entity--that of subaortic tendon-induced ST-segment elevation. This is proposed as a totally benign phenomenon with the clinical importance in that it should not be confused with other pathological processes, such as the Brugada syndrome. (Source: Cardiov... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2292480 Tue, 24 Mar 2009 04:00:00 +0100 2292480 http://www.medworm.com/index.php?rid=2254089&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F11 A 24-year-old woman admitted with mild chest distress associated with activity without chest complaint for twenty days. Two orifices were visible at the level of the mitral valve with a transthoracic short-axis view of the two-dimensional and three-dimensional echocardiography. The left ventricle was mildly dilatated and the left ventricular wall was thickened, especially at the apex and anterolateral wall, and appeared sponge-like. There were numerous, excessively prominent trabeculations associated with intertrabecular recesses. Although the coexistence of NVM and DOMV could be a coincidence, we believe that both defects were probably caused by a developmental arrest of the left ventricular myocardium in the present case. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2254089 Mon, 09 Mar 2009 04:00:00 +0100 2254089 http://www.medworm.com/index.php?rid=2199032&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F9 A right heart catheterization with reversibility testing is recommended for the diagnosis and treatment of pulmonary arterial hypertension. In this 24 years-old woman, the inhalation of 5 ug iloprost transiently decreased mean pulmonary artery pressure from 62 to 36 mmHg and pulmonary vascular resistance from 11.0 to 4.9 Wood units, meeting the criteria of a "positive response". The echocardiographic examination showed normalization of right heart chamber dimensions and of the right ventricular performance (Tei) index. Pulsed tissue Doppler imaging of the right ventricle showed a decrease in the isovolumic relaxation time from 102 to 73 ms, and an increase of the E/A ratio from 0.72 to 1.38, together with marked improvements in mid-apical free wall systolic strain and strain rate. A positi... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2199032 Thu, 19 Feb 2009 05:00:00 +0100 2199032 http://www.medworm.com/index.php?rid=2100373&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F2 Conclusion: Duplex indices of vertebral arteries are age independent in adults. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2100373 Tue, 13 Jan 2009 05:00:00 +0100 2100373 http://www.medworm.com/index.php?rid=2086357&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F7%2F1%2F1 Background: Cardiac resynchronisation therapy (CRT) improves mortality and morbidity in heart failure patients with wide QRS. Observational studies suggest that patients having more left ventricular dyssynchrony pre-implantation obtain greater benefit on ventricular function and symptoms with CRT. Aim: To provide an analysis of the prevalence and type of dyssynchrony in patients included in the CARE-HF trial. Methods: 100 patients 67 (58 to 71) years were examined with echocardiography including tissue doppler imaging before receiving a CRT-pacemaker. Atrio-ventricular dyssynchrony (LVFT/RR) was defined as left ventricular filling time 40 ms. Intra-ventricular (regional) dyssynchrony in a 16-segment model was expressed either as a delayed longitudinal contraction (DLC) during the postsyst... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2086357 Wed, 07 Jan 2009 05:00:00 +0100 2086357 http://www.medworm.com/index.php?rid=2072474&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F65 This study sought to investigate the potential impact of myocardial contractile reserve as assessed during exercise echocardiography on acute response following CRT implantation. Methods: Fifty-one consecutive patients with heart failure (LV ejection fraction 27% +/- 5%, 67% ischemic cardiomyopathy) underwent exercise Doppler echocardiography before CRT implantation to assess global contractile reserve (improvement in LV ejection fraction) and local contractile reserve in the region of the LV pacing lead (assessed by radial strain using speckle tracking analysis). Responders were defined by an increase in stroke volume [greater than or equal to]15% after CRT. Results: Compared with nonresponders, responders (25 patients) showed a greater exercise-induced increase in LV ejection fraction, ... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=2072474 Wed, 31 Dec 2008 05:00:00 +0100 2072474 http://www.medworm.com/index.php?rid=1989268&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F58 Conclusion: The implementation of different markers of asynchrony in the selection process for CRT improves the hemodynamic response rate to CRT. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1989268 Tue, 25 Nov 2008 05:00:00 +0100 1989268 http://www.medworm.com/index.php?rid=1951029&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F55 Background: Left ventricular size and function are important prognostic factors in heart disease. Their measurement is the most frequent reason for sending patients to the echo lab. These measurements have important implications for therapy but are sensitive to the skill of the operator. Earlier automated echo-based methods have not become widely used. The aim of our study was to evaluate an automatic echocardiographic method (with manual correction if needed) for determining left ventricular ejection fraction (LVEF) based on an active appearance model of the left ventricle (syngo(R)AutoEF, Siemens Medical Solutions). Comparisons were made with manual planimetry (manual Simpson), visual assessment and automatically determined LVEF from quantitative myocardial gated single photon emission c... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1951029 Tue, 11 Nov 2008 05:00:00 +0100 1951029 http://www.medworm.com/index.php?rid=1891449&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F51 Conclusion: 1. The method is applicable in a large number of patients. 2. RV/RA gradients obtained at peak exercise are higher with the use of contrast, and the clinical meaning of this difference should be evaluated in a larger number of pts submitted to right heart cathetherism. The high number of false positives should lead to a higher diagnostic threshold. 3. This method seems to have relevant clinical value in the diagnosis of pulmonary arterial hypertension. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1891449 Mon, 13 Oct 2008 04:00:00 +0100 1891449 http://www.medworm.com/index.php?rid=1823721&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F48 In this report, we describe the case of a 62-year-old man whose effort angina was first evaluated with coronary angiography, but whose severe stenosis of the right coronary artery was only observed on cardiac CT and IVUS. This additional diagnosis promptly resulted in a therapeutic approach with percutaneous transluminal coronary angioplasty (PTCA). (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1823721 Wed, 24 Sep 2008 04:00:00 +0100 1823721 http://www.medworm.com/index.php?rid=1814752&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F47 Conclusions: Our paper confirms previous studies about the association between a comprehensive risk score and signs of early cardiovascular damage. A temporally limited exposure to cardiovascular risk factors, in particular to blood pressure, is already able to induce significant changes in both the heart structure and the vascular wall. Also in a european low-risk population the use of a cardiovascular risk score program, such as the Progetto Cuore in Italy, allows a quite precise estimation of the possible cardiovascular damage. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1814752 Mon, 22 Sep 2008 04:00:00 +0100 1814752 http://www.medworm.com/index.php?rid=1793703&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F46 Conclusion: Hiatus hernia can present as acute chest pain, while its echocardiographic manifestation may resemble a left atrial space-occupying structure. Physicians should be aware of the clinical and sonographic findings to facilitate the differential diagnosis from similarly presenting cardiac entities. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1793703 Mon, 15 Sep 2008 04:00:00 +0100 1793703 http://www.medworm.com/index.php?rid=1738376&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F43 Background: Mexican-Americans (MA) exhibit increases in various cardiovascular disease (CVD) risk factors compared to non-Hispanic Whites (NHW), yet are reported to have lower CVD mortality rates. Our aim was to help explain this apparent paradox by evaluating endothelial function and urine albumin levels in MA and NHW. Methods: One hundred-five MA and 100 NHW adults were studied by brachial artery flow-mediated dilatation (FMD), blood and urine tests. Participants were studied by ultrasound-determined brachial artery flow-mediated dilatation (FMD), blood and urine tests, at a single visit. Results: Despite higher BMI and triglycerides in MA, MA demonstrated higher FMD than did NHW (9.1 +/- 7.3% vs. 7.1 +/- 6.3%, p (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1738376 Wed, 27 Aug 2008 04:00:00 +0100 1738376 http://www.medworm.com/index.php?rid=1685585&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F36 Conclusion: Ethnicity appears to be an independent correlate of preclinical cardiovascular disease, even after correction for the high prevalence of cardiovascular risk factors in indigenous Australians. Standard approaches to control currently known risk factors are vital to reduce the burden of cardiovascular disease, but in themselves may be insufficient to fully address the high prevalence in this population. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1685585 Wed, 16 Jul 2008 04:00:00 +0100 1685585 http://www.medworm.com/index.php?rid=1605094&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F33 Conclusion: Anatomo-echocardiographic correlation demonstrated a high degree of diagnostic precision with echocardiography. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1605094 Tue, 24 Jun 2008 04:00:00 +0100 1605094 http://www.medworm.com/index.php?rid=1541469&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F33 Conclusions: Anatomo-echocardiographic correlation demonstrated a high degree of diagnostic precision with echocardiography. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1541469 Tue, 24 Jun 2008 04:00:00 +0100 1541469 http://www.medworm.com/index.php?rid=1534620&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F31 Real-time three-dimensional (RT-3D) echocardiography has entered the clinical practice but true incremental value over standard two-dimensional echocardiography (2D) remains uncertain in stress echo. The aim of the present study is to establish the additional value of RT-3D stress echo over standard 2D stress echocardiography. We evaluated 23 consecutive patients (age = 6510 years, 16 men) referred for dipyridamole stress echocardiography with Sonos 7500 (Philips Medical Systems, Palo, Alto, CA ) equipped with a phased - array 1.6-2.5 MHz probe with second harmonic capability for 2D imaging and a 2-4 MHz matrix-phased array transducer producing 60 x 70 volumetric pyramidal data containing the entire left ventricle for RT-3D imaging. In all patients, images were digitally stored in 2D and 3... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1534620 Fri, 20 Jun 2008 04:00:00 +0100 1534620 http://www.medworm.com/index.php?rid=1534619&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F32 Background: Image-based B-mode ultrasound has gained popularity in major studies as a non-invasive method of measuring cardio- and cerebrovascular risk factors. However, none of the major studies appears to have paid sufficient attention to the variation in end diastolic wall process. By using sequentially based analyses (SBA) of Intima-Media Thickness (IMT), the general purpose of this study was to show that the current image based (ECG tracked) analysis (IBA) has some major variations and might underestimate the true relations for cardiovascular events and stroke for IMT measurement.MethodThe study group consisted of 2500 healthy male subjects aged between 35 to 55 years. 4 sequences (300 images) were analyzed per subject. 750,000 images were analysed throughout the course of this study.... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1534619 Fri, 20 Jun 2008 04:00:00 +0100 1534619 http://www.medworm.com/index.php?rid=1515861&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F29 We describe a case of congestive heart failure and right ventricular overload associated with overt hyperthyroidism, completely reversed with antithyroid therapy in a few weeks. It represents a very unusual presentation of overt hyperthyroidism because of the severity of right heart failure. The impressive right ventricle volume overload made mandatory to perform transoesophageal echo and angio-CT examination to exclude the coexistence of ASD or anomalous pulmonary venous return. Only a few cases of reversible right heart failure, with or without pulmonary hypertension, have been reported worldwide. In our case the most striking feature has been the normalization of the cardiovascular findings after six weeks of tiamazole therapy. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1515861 Thu, 12 Jun 2008 04:00:00 +0100 1515861 http://www.medworm.com/index.php?rid=1496396&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F27 To evaluate whether myocardial performance index detects a subclinical impairment of left ventricular systolic and diastolic function in patients with early stage of type 2 diabetes, without coronary artery disease, with or without hypertension. Furthermore, to evaluate whether some echocardiographic parameters relate to the metabolic control. Fourty-five consecutive male patients (mean age 52.5 years) with type 2 diabetes mellitus of recent onset (23 hypertensives and 22 normotensives) and 22 age matched healthy controls males were analysed. All participants had normal exercise ECG. All subjects underwent standard and Doppler echocardiography for the assessment of the isovolumic Doppler time interval and Doppler-derived myocardial performance index. In all diabetic patients a glycated hae... Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1496396 Thu, 05 Jun 2008 04:00:00 +0100 1496396 http://www.medworm.com/index.php?rid=1479754&cid=s_30484_37_f&fid=30484&url=http%3A%2F%2Fwww.cardiovascularultrasound.com%2Fcontent%2F6%2F1%2F22 Conclusions: Incorporation of local 2-D echocardiographic deformation data into a 3-D model by dedicated software allows a comprehensive analysis of spatio-temporal distribution patterns of myocardial dyssynchrony, of the global left ventricular deformation and of newer indices that may better reflect myocardial dyscoordination and/or impaired ventricular contractile efficiency. The potential value of such an analysis is highlighted in two dyssynchronous pathologies that impose particular challenges to deformation imaging. (Source: Cardiovascular Ultrasound) Cardiovascular Ultrasound journals http://www.medworm.com/rss/comments.php?id=1479754 Fri, 30 May 2008 04:00:00 +0100 1479754