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Study of light transmission through gauze pad effected by blood or liquids to detect needle dislodgementEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions Using two types of gauze pads, we confirmed that liquids significantly increased light transmission through gauze pad, but porcine blood decreased light transmission. This opposite response can be used to distinguish liquids from blood on a gauze pad. Content Type Journal ArticleDOI 10.1007/s10877-009-9206-8Authors Akihiro Takeuchi, Kitasato University Department of Medical Informatics, School of Allied Health Sciences 1-15-1 Kitasato Sagamihara Kanagawa 228-8555 JapanKai Ishida, Kitasato University Graduate School of Medical Sciences Sagamihara JapanYasuo Morohoshi, Kitasato University Sc...
Source: Journal of Clinical Monitoring and Computing - November 13, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Using web services to realize remote hearing assessmentEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions. The project developed a remote hearing assessment system based on services on a web server. The system minimizes hardware and software requirements on the audiologist’s computer and can be realized with regular Internet service subscription. Patient operations involved in hearing assessment are simple; making hearing test services more accessible to those otherwise may not be able to obtain the desired hearing care. Content Type Journal ArticleDOI 10.1007/s10877-009-9208-6Authors Jianchu Yao, East Carolina University Greenville NC 27858 USAYongbo Wan, East Carolina University Greenville NC 27858 USAG...
Source: Journal of Clinical Monitoring and Computing - November 11, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

The anaesthetic report: custom-made printouts from anaesthesia-information-management-systems using extensible stylesheet language transformationEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion XSLT proved to be a very satisfactory technique to create different printouts and is therefore a feasible technique to enhance any AIMS. As XML turns out to be one of the most important formats for medical data, we call for the development of an international anaesthetic XML-standard and its adoption to AIMS. Content Type Journal ArticleDOI 10.1007/s10877-009-9209-5Authors Andreas Meyer-Bender, University Hospital of Munich-Campus Großhadern Department of Anaesthesiology Marchioninistr. 15 81377 Munich GermanyRichard Spitz, University Hospital of Munich-Campus Großhadern Department of Ana...
Source: Journal of Clinical Monitoring and Computing - November 6, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Improvement in accuracy of transcutaneous measurement of oxygen with resumption of spontaneous ventilation in mechanically ventilated patients after off pump coronary artery bypass procedure: a prospective studyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion The accuracy of transcutaneously measured values of oxygen improved significantly during spontaneous ventilation. Content Type Journal ArticleDOI 10.1007/s10877-009-9207-7Authors Murali Chakravarthy, Wockhardt Hospitals Mumbai IndiaSandeep Narayan, Wockhardt Hospitals Mumbai IndiaRaghav Govindarajan, Wockhardt Hospitals Mumbai IndiaVivek Jawali, Wockhardt Hospitals Mumbai India Journal Journal of Clinical Monitoring and ComputingOnline ISSN 1573-2614Print ISSN 1387-1307 (Source: Journal of Clinical Monitoring and Computing)
Source: Journal of Clinical Monitoring and Computing - October 30, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Mixed-muscle electrode placement (“jumping” muscles) may produce false-negative results when using transcranial motor evoked potentials to detect an isolated nerve root injury in a porcine modelEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Discussion Mixed-myotomal recording electrodes did not consistently increase baseline TcMEP amplitude. The decrease in amplitude after ligation was both smaller and more variable in the “jumped” TA-GAS electrodes. Thus, this technique may allow someone relying on TcMEP monitoring to miss an otherwise detectable isolated nerve root injury (i.e., have a false-negative result). Content Type Journal ArticleDOI 10.1007/s10877-009-9205-9Authors Russ Lyon, UCSF San Francisco USAShane Burch, UCSF San Francisco USAJeremy Lieberman, UCSF San Francisco USA Journal Journal of Clinical Monitoring and Co...
Source: Journal of Clinical Monitoring and Computing - October 27, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Transjugular intrahepatic portosystemic shunt (TIPS): the anesthesiological point of view after 150 procedures managed under total intravenous anesthesiaEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract TIPS is a percutaneous procedure which diverts blood from the portal to the systemic circulation preventing rebleeding from varices and stopping or reducing the formation of ascites. The choice of the anaesthetic technique is still a matter of debate. Since January 2003, 150 consecutive TIPS were performed using total intravenous anesthesia (TIVA), (propofol/fentanyl or remifentanil), endotracheal intubation and mechanical ventilation. Sixty-one patients were classified as ASA 2, 73 ASA 3, and 16 ASA 4. According to CHILD classification, 96 patients were in Class A, 48 in Class B, 6 in Class C. Mean...
Source: Journal of Clinical Monitoring and Computing - October 21, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Transesophageal Doppler devices: A technical reviewEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Monitoring of aortic blood flow, conducting large portions of the cardiac output (CO), allows conclusions on the global hemodynamic status of patients. For this purpose, transesophageal Doppler (TED) devices have been developed, which interrogate the descending aorta and calculate aortic blood flow velocity using the Doppler principle. The recorded velocity–time curve can be used to estimate CO as well other advanced hemodynamic parameters such as preload, afterload and myocardial contractility. Clinical studies in perioperative patients have demonstrated a reduced postoperative morbidity and shor...
Source: Journal of Clinical Monitoring and Computing - October 20, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Improved response time with a new miniaturised main-stream multigas monitorEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions The MSGM response time for CO2 and O2 was less than 1/3 of the SSGM. The performance of the MSGM was maintained at high breathing frequencies. The accuracy was within clinically acceptable limits for both monitors. Content Type Journal ArticleDOI 10.1007/s10877-009-9203-yAuthors Mattias Berggren, SU/The Queen Silvia Children’s Hospital Department of Paediatric Anaesthesia and Intensive Care 416 85 Gothenburg SwedenNasser Hosseini, Sahlgrenska University Hospital Department of Biomedical Engineering Gothenburg SwedenKrister Nilsson, SU/The Queen Silvia Children’s Hospital Department of P...
Source: Journal of Clinical Monitoring and Computing - October 10, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Comparison of two in vivo microscopy techniques to visualize alveolar mechanicsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions Both FD-OCT and CLSM provide high-resolution images of alveolar structure giving depth information that is beneficial to conventional microscopy. CLSM also facilitates endoscopic view on alveoli being well comparable to images gained through a thoracic window. Content Type Journal ArticleDOI 10.1007/s10877-009-9200-1Authors Johannes Bickenbach, University Hospital RWTH Aachen Department of Surgical Intensive Care Pauwelsstr. 30 52074 Aachen GermanyRolf Dembinski, University Hospital RWTH Aachen Department of Surgical Intensive Care Pauwelsstr. 30 52074 Aachen GermanyMichael Czaplik, Univers...
Source: Journal of Clinical Monitoring and Computing - September 16, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Guidelines for intraoperative neuromonitoring using raw (analog or digital waveforms) and quantitative electroencephalography: a position statement by the American Society of Neurophysiological MonitoringEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions This position paper summarizes commonly used protocols for recording and interpreting the intraoperative use of EEG. Furthermore, the American Society of Neurophysiological Monitoring recognizes this as primarily an educational service. Content Type Journal ArticleDOI 10.1007/s10877-009-9191-yAuthors Michael R. Isley, Orlando Regional Medical Center Intraoperative Neuromonitoring Department Orlando FL 32806 USAHarvey L. Edmonds, University of Louisville School of Medicine Department of Anesthesiology and Perioperative Medicine Louisville KY 40207-3633 USAMark Stecker, Marshall University Sc...
Source: Journal of Clinical Monitoring and Computing - September 16, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

An orthopedic injection training instrument using flow impedance to indicate needle tip locationsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions The results confirmed the concept of using flow impedance to index the needle tip location—whether the tip is positioned in joint or tendon. This instrument’s user interface can serve as a training aid for medical students and infrequent operators. Content Type Journal ArticleDOI 10.1007/s10877-009-9202-zAuthors Jianchu Yao, East Carolina Unveristy Greenville NC USAStephanie T. Sullivan, East Carolina Unveristy Greenville NC USAChristopher A. Eckert, East Carolina Unveristy Greenville NC USAEdwin C. Bartlett, East Carolina Unveristy Greenville NC USA Journal Journal of Clinical M...
Source: Journal of Clinical Monitoring and Computing - September 16, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Monitoring of reactive hyperemia using photoplethysmographic pulse amplitude and transit timeEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion: Results suggests that PTT response reflects the myogenic components in the early part of RH and PPG amplitude response reflects the metabolic component reinforcing the later course of RH. PPG amplitude and PTT can be used to quantify the changes in diameter and tone of the vessel wall, respectively during RH. The collective responses of PPG amplitude and PTT can be more appropriate to facilitate PPG technique for monitoring of vasodilation caused by RH. Content Type Journal ArticleDOI 10.1007/s10877-009-9199-3Authors Nandakumar Selvaraj, Indian Institute of Technology Delhi Centre for Biomedical Enginee...
Source: Journal of Clinical Monitoring and Computing - September 3, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Spinal cord stimulation: principles of past, present and future practice: a reviewEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Electric energy have been in use for the treatment of various ailments, including pain, since the time of Pharaohs. The theoretical basis of electrotherapy of pain was provided by the Gate Control Theory of Melzak and Wall. In 1965, Shealey et al. first introduced electrical stimulation of spinal cord for treating pain. At present spinal cord stimulation (SCS) is a well established form of treatment for failed back surgery syndrome, complex regional pain syndrome and refractory pain due to ischemia. The indications for SCS is growing and the technology involved in this is rapidly advancing, however,...
Source: Journal of Clinical Monitoring and Computing - September 3, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Comparative pharmacodynamic modeling of desflurane, sevoflurane and isofluraneEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions The first order rate constant (ke0 value) determining the equilibration between age-related MAC values and MAC effect site concentration is substantially higher for desflurane than for sevoflurane or isoflurane. Content Type Journal ArticleDOI 10.1007/s10877-009-9196-6Authors Sascha Kreuer, University of Saarland Department of Anaesthesiology and Intensive Care Medicine 66421 Homburg/Saar Saarland GermanyJörgen Bruhn, UMC St. Radboud Department of Anaesthesiology Nijmegen The NetherlandsWolfram Wilhelm, St.-Marien-Hospital Department of Anaesthesiology and Intensive Care Medicine Luenen NR...
Source: Journal of Clinical Monitoring and Computing - August 27, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Using a prediction approach to assess agreement between two continuous measurementsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The problem of assessing agreement between two devices occurs with great frequency in the medical literature. If it can be demonstrated that a new device agrees sufficiently with a device currently in use, then the new device can be approved for general use. This work discusses how a prediction interval can be used to estimate the whether a future difference between two devices will be within acceptable limits with reasonable confidence. The method is illustrated with an example involving measurements of peak expiratory flow. Content Type Journal ArticleDOI 10.1007/s10877-009-9198-4Authors Cody...
Source: Journal of Clinical Monitoring and Computing - August 21, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

BIS values during resuscitation: the role of the suppression ratio (case report)Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We report a case during which it was simultaneously recorded usual Bispectral Index (BIS) values and elevated suppression ratio (SR) during resuscitation maneuvers. A 52-year-old woman, scheduled for a suspension laryngoscopy, required cardio-pulmonary resuscitation due to an anaphylactic shock secondary to the administration of succinylcholine. Post-crisis analysis of the BIS trace showed both BIS numbers consistent with an adequate level hypnosis and an increase in SR. Simultaneous hypnotic BIS values and an elevated SR is striking as SR quantifies electroenceph- alographic suppression. Clinicians must remember that...
Source: Journal of Clinical Monitoring and Computing - August 21, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

The Mean Machine; Accurate Non-invasive Blood Pressure Measurement in the Critically Ill PatientEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions In the Intensive Care Unit, the performance of one device, the Oscar 2, surpassed the others and fulfilled the AAMI protocol criteria for mean pressure measurement. This device is suitable for prehospital validation. Content Type Journal ArticleDOI 10.1007/s10877-009-9195-7Authors Sandy Muecke, Flinders University Department of Critical Care Medicine Adelaide SA 5042 AustraliaAndrew Bersten, Flinders University Department of Critical Care Medicine Adelaide SA 5042 AustraliaJohn Plummer, Flinders Medical Centre Pain Management Unit Adelaide SA 5042 Australia Journal Journal of Clinica...
Source: Journal of Clinical Monitoring and Computing - August 12, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

A novel electronic algorithm for detecting potentially insufficient anesthesia: implications for the prevention of intraoperative awarenessEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions Our novel electronic alerting system incorporates both age-adjusted MAC and intravenous anesthesia, and triggers with a higher frequency in cases of awareness. These data suggest the potential for our system to alert clinicians to insufficient anesthesia. Content Type Journal ArticleDOI 10.1007/s10877-009-9193-9Authors George A. Mashour, University of Michigan Medical School Division of Neuroanesthesiology, Department of Anesthesiology 1H247 UH/Box 5048 1500 East Medical Center Drive Ann Arbor MI 48109-5048 USARoy K. Esaki, University of Michigan Medical School Division of Neuroanesthesiolo...
Source: Journal of Clinical Monitoring and Computing - August 9, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Does the systolic pressure variation change in the prone position?Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions This study is important because it shows for the first time that the SPV does not change significantly in the prone position, and may therefore continue to be used as an indicator of the volume status. It also would appear to indicate that our methods for protecting the chest and abdomen in the prone position are effective. Content Type Journal ArticleDOI 10.1007/s10877-009-9194-8Authors Roger Marks, University of Miami Department of Anesthesiology Miami FL USARichard Silverman, University of Miami Department of Anesthesiology Miami FL USARaul Fernandez, University of Miami Department of A...
Source: Journal of Clinical Monitoring and Computing - July 25, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

A comparison of vital signs charted by nurses with automated acquired values using waveform quality indicesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion Charted vital signs reflect in large the raw data as reported by bedside monitors. Poor signal quality could partially explain the existence of cases of large discrepancies. Content Type Journal ArticleDOI 10.1007/s10877-009-9192-xAuthors Monica Sapo, University of California Neuroinformatics Service and Support, Department of Neurosurgery, David Geffen School of Medicine Los Angeles CA USAShaozhi Wu, University of California Neural Systems and Dynamics Lab, Department of Neurosurgery, David Geffen School of Medicine NPI 18-240 Los Angeles CA 90095 USAShadnaz Asgari, University of California...
Source: Journal of Clinical Monitoring and Computing - July 25, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Holter monitoring of central and peripheral temperature: possible uses and feasibility study in outpatient settingsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions Continuous monitoring of central and peripheral temperature may be a helpful tool in both ambulatory and admitted patients and may offer new approaches in clinical thermometry. Content Type Journal ArticleDOI 10.1007/s10877-009-9184-xAuthors Manuel Varela, Hospital de Mostoles Servicio de Medicina Interna c/Rio Jucar s/n Mostoles, Madrid 28935 SpainDavid Cuesta, Universidad Politécnica de Valencia Instituto Tecnológico de Informática Campus de Alcoi Alcoi SpainJuan Antonio Madrid, Universidad de Murcia Cronolab, Facultad de Biología Murcia SpainJuan Churruca, Hospital de Mostoles Servic...
Source: Journal of Clinical Monitoring and Computing - July 21, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Multi-channel electrical bioimpedance: a non-invasive method to simultaneously measure cardiac output and individual arterial limb flow in patients with cardiovascular diseaseEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions MEB accurately measures cardiac output in patients with moderate to severe clinical heart failure and accurately measures regional arterial limb flow in patients with peripheral arterial disease. Content Type Journal ArticleDOI 10.1007/s10877-009-9189-5Authors Alfred W. H. Stanley, Kemp-Carraway Heart Institute Birmingham AL USAJeffery W. Herald, Cardiovascular Consultants of Alabama Birmingham AL USAConstantine L. Athanasuleas, Kemp-Carraway Heart Institute Birmingham AL USASaji C. Jacob, Cardiovascular Consultants of Alabama Birmingham AL USAAlfred A. Bartolucci, University of Alabama De...
Source: Journal of Clinical Monitoring and Computing - July 14, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Dose and timing effect of etomidate on motor evoked potentials elicited by transcranial electric or magnetic stimulation in the monkey and baboonEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions This study demonstrates that a low dose (0.1 mg/kg) of etomidate increases the com- pound muscle action potential (CMAP) amplitude for tcEMEP and tcMMEP in the monkey whereas higher doses decrease the amplitude. Epidural recordings demonstrate a marked increase in the number of I waves consistent with a cortical effect similar to the postulated effect that results in amplification of the cortical SSEP. This suggests the amplitude loss in the hypothenar muscles may be due to depression of the spinal cord by etomidate. The CMAP response amplification at low doses was greater in tcMMEP than tcE...
Source: Journal of Clinical Monitoring and Computing - July 13, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

EEG sources of noise in intraoperative somatosensory evoked potential monitoring during propofol anesthesiaEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion. The major source of EEG noise in tSEP recordings is the mixed frequency activity of the slow waves of bursts that occur during propofol anesthesia. Spindles also have frequency components that increase noise levels, but these are less important, as the number of spindles is fewer. The fastest way to obtain reliable tSEPs is by averaging selectively during suppressions. Content Type Journal ArticleDOI 10.1007/s10877-009-9188-6Authors Atte Joutsen, Tampere University of Technology Department of Biomedical Engineering P.O. Box 692 33101 Tampere FinlandPasi Puumala, Oulu University Hospital Department of Ane...
Source: Journal of Clinical Monitoring and Computing - June 30, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Visual Cueing with Context Relevant Information for Reducing Change BlindnessEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions The data collected and analyzed in this study supports the addition of a visual cue to future physiological monitors. The graphic representation and the context relevant information that it transmits appears to aid clinicians. While the results indicate that enhanced visualization of context relevant information can lead to a significant improvement in event recognition and identification, further evaluation in clinical settings is required. Content Type Journal ArticleDOI 10.1007/s10877-009-9186-8Authors Jacqueline M. Tappan, Massachusetts Institute of Technology Engineering Systems Divi...
Source: Journal of Clinical Monitoring and Computing - June 22, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Myocardial electrical activity does not affect myocardial electrical impedance measurementsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion These results demonstrate that our MEI monitor is unaffected by the frequency of the periodic myocardial electrical activity that generates the HR. Content Type Journal ArticleDOI 10.1007/s10877-009-9185-9Authors Roger Dzwonczyk, The Ohio State University Department of Anesthesiology Doan Hall, Room N411, 410 West 10th Avenue Columbus OH 43210-1228 USACarlos del Rio, The Ohio State University Department of Anesthesiology Doan Hall, Room N411, 410 West 10th Avenue Columbus OH 43210-1228 USAThomas D. McSweeney, The Ohio State University Department of Anesthesiology Doan Hall, Room N411, 410 We...
Source: Journal of Clinical Monitoring and Computing - June 20, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Reproducibility of cardiac output measurement by the nitrous oxide rebreathing techniqueEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Techniques for the measurement of cardiac output from soluble gas uptake by the lungs include the rebreathing method using nitrous oxide. The accuracy of this␣technique is well accepted, but its repeatability of measurement (precision) has not been well documented. We assessed the repeatability of measurements of pulmonary blood flow by the Innocor, a device employing the nitrous oxide rebreathing method. Successive paired measurements of pulmonary blood flow were made separated by a 5 min interval by the nitrous oxide rebreathing method, in 8 patients pre- or post cardiac surgery, and in 8 h...
Source: Journal of Clinical Monitoring and Computing - June 19, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Bi-spectral index guided closed-loop anaesthesia delivery system (CLADS™) in pheochromocytomaEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion. CLADS performed well in patients undergoing pheochromocytoma surgeries which represent one of the few clinically extreme situations. Content Type Journal ArticleDOI 10.1007/s10877-009-9181-0Authors Harihar V. Hegde, Postgraduate Institute of Medical Education and Research (PGIMER), Sector 12 Department of Anaesthesia and Intensive Care Chandigarh 160012 IndiaG. D. Puri, Postgraduate Institute of Medical Education and Research (PGIMER), Sector 12 Department of Anaesthesia and Intensive Care Chandigarh 160012 IndiaBhupesh Kumar, Postgraduate Institute of Medical Education and Research (PGIMER), Sector 12 De...
Source: Journal of Clinical Monitoring and Computing - June 11, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Model fitting of volumetric capnograms improves calculations of airway dead space and slope of phase IIIEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions. The Functional Approxi- mation based on a Levenberg-Marquardt Algorithm showed less bias and dispersion compared to the traditional Fowler’s method when calculating VDaw and S III. Content Type Journal ArticleDOI 10.1007/s10877-009-9182-zAuthors Gerardo Tusman, Hospital Privado de Comunidad Department of Anesthesiology Mar del Plata ArgentinaAdriana Scandurra, University of Mar del Plata Bioengineering Laboratory, Electronic Department Mar del Plata ArgentinaStephan H. Böhm, CSEM Centre Suisse d’Electronique et de Microtechnique SA Research Centre for Nanomedicine Landquart SwitzerlandFernando Suar...
Source: Journal of Clinical Monitoring and Computing - June 11, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Yet another cause for blocked sidestream capnogram––beware of the non-threaded cap mount in heat and moisture exchangersEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Heat and moisture exchangers (HME) are commonly used during general anaesthesia and intensive care of patients on mechanical ventilators. Some of the HME manufacturers provide HMEs with a Luer lock fitting for connecting side stream CO2 monitoring line, Luer lock cap, and a non-threaded cap mount. However, HMEs from different manufacturers and HMEs meant for use in children and for adults from the same manufacturer vary in the presence/absence of non-threaded cap mount. This can create confusion to the clinicians and can result in inadvertent connection of the CO2 monitoring line to the non-threaded ...
Source: Journal of Clinical Monitoring and Computing - June 7, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Watch your backEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Content Type Journal ArticleDOI 10.1007/s10877-009-9180-1Authors David Wax, Mount Sinai School of Medicine New York NY USASteven Neustein, Mount Sinai School of Medicine New York NY USA Journal Journal of Clinical Monitoring and ComputingOnline ISSN 1573-2614Print ISSN 1387-1307 (Source: Journal of Clinical Monitoring and Computing)
Source: Journal of Clinical Monitoring and Computing - May 26, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Cardiac index value measurement by invasive, semi-invasive and non invasive techniques: a prospective study in postoperative off pump coronary artery bypass surgery patientsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The authors prospectively compared three techniques of continuous cardiac index measurements. They were, invasive Continuous Cardiac Index using thermodilution flow-directed Swan-Ganz pulmonary artery catheters, semi invasive Flotrac™—arterial pressure derived cardiac index and the non invasive cardiac index measurement—body impedance plethsmography. The cardiac index measurements were made simultaneously in the postoperative period in 20 patients who underwent elective uncomplicated off pump coronary artery bypass graft. The values were collected once in 5 min over a period of 30–40&nb...
Source: Journal of Clinical Monitoring and Computing - May 2, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

A poor correlation exists between oscillometric and radial arterial blood pressure as measured by the Philips MP90 monitorEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract In anesthesia and critical care, invasive arterial blood pressure monitoring is the gold standard against which other methods of monitoring are compared. In this assessment of the Philips MP90 monitor, the objective was to determine whether or not oscillometric measurements were within the accuracy standards set by the Association for the Advancement of Medical Instrumentation (AAMI) and the British Hypertension Society (BHS). Three hundred and one invasive and noninvasive paired measurements were obtained from eleven adult patients on the neurosurgical service at Stanford University Medical Center....
Source: Journal of Clinical Monitoring and Computing - April 25, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Differential effect of halothane on motor evoked potentials elicited by transcranial electric or magnetic stimulation in the monkeyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions These differences in sensitivity to HAL are consistent with other studies with intravenous anesthesia and are consistent with the known difference in the physiological mechanisms by which magnetic and electrical stimulation activates the motor cortex. Content Type Journal ArticleDOI 10.1007/s10877-009-9177-9Authors Tod Sloan, University of Colorado at Denver Department of Anesthesiology Academic Office 1 12631 East 17th Ave P. O. Box 6511 Aurora CO 80045 USAJ. Rogers, The University of Texas Health Science Center at San Antonio San Antonio TX USA Journal Journal of Clinical Monitorin...
Source: Journal of Clinical Monitoring and Computing - April 24, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Comparison between a dorsal and a belt tactile display prototype for decoding physiological events in the operating roomEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions. The communication of information on physiological parameters by tactile displays was easy to learn and accurate for both prototypes. The DTD was easier to learn and affected less by distraction. Further evaluation is required in a clinical setting with expert users to determine the clinical applicability of these prototypes. Content Type Journal ArticleDOI 10.1007/s10877-009-9175-yAuthors Pierre Barralon, The University of British Columbia Department of Electrical and Computer Engineering Vancouver BC CanadaGuy Dumont, The University of British Columbia Department of Electrical and Computer Engineering ...
Source: Journal of Clinical Monitoring and Computing - April 10, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Oxygraphy: An Unexplored Perioperative Monitoring ModalityEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Capnography waveforms and capnometry are useful perioperative monitoring tools. The paramagnetic oxygen analyzers incorporated in many clinical monitoring systems estimate oxygen concentration in the breathing circuit during various phases of ventilation. The oxygen concentration is plotted as a real-time waveform and displayed as an oxygraph. However, the clinical utility of oxygraphy is under evaluated. We are reporting four different clinical scenarios in neurosurgical patients, wherein the information yielded by oxygraphy were either not available on the capnograph or were revealed in a more pro...
Source: Journal of Clinical Monitoring and Computing - April 8, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Monitoring of Cardiovascular Reactivity to Cold Stress Using Digital Volume Pulse Characteristics in Health and DiabetesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion This preliminary study suggests that the collective responses of PPG amplitude and PTT can be used to objectively quantify the sympathetic reactivity to cold stress in health as well as to detect the deficits of vascular reactivity in diabetes. Further studies would substantiate the simple PPG technique in quantifying the neuronal and vascular dysfunction. Content Type Journal ArticleDOI 10.1007/s10877-009-9174-zAuthors Ashok K. Jaryal, All India Institute of Medical Sciences (AIIMS) Department of Physiology New Delhi 110 608 IndiaNandakumar Selvaraj, Indian Institute of Technology Delhi Ce...
Source: Journal of Clinical Monitoring and Computing - March 24, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Improved Accuracy Of Cardiac Output Estimation By The Partial CO2 Rebreathing MethodEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions This study demonstrated the improved perfor- mance of the NICO monitor with updated software. The performance of the NICO monitor with ver. 4.2 or later software is similar to CCO. However, the cardiac output measurement did not fulfill the criteria of interchangeability to the cardiac output measurement by bolus thermodilution. Updates to ver. 5.0 attenuated the effects of rebreathing introduced by the NICO monitor without compromising the accuracy of the cardiac output measurement. Content Type Journal ArticleDOI 10.1007/s10877-009-9172-1Authors Yoshifumi Kotake, Toho University Departm...
Source: Journal of Clinical Monitoring and Computing - March 20, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Flow-Through Versus Sidestream Capnometry for Detection of End Tidal Carbon Dioxide in the Sedated PatientEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions Within a wide limit of agreement between the volunteer and bench study, flow-through and sidestream capnometry performed equally well during bench testing and in non-intubated, sedated patients. Content Type Journal ArticleDOI 10.1007/s10877-009-9171-2Authors Derek J. Sakata, University of Utah Department of Anesthesiology 30 North 1900 East, 3C444 SOM Salt Lake City UT 84132 USAIsao Matsubara, Nihon Kohden Corporation Tokyo JapanNishant A. Gopalakrishnan, University of Utah Department of Anesthesiology 30 North 1900 East, 3C444 SOM Salt Lake City UT 84132 USADwayne R. Westenskow, Universit...
Source: Journal of Clinical Monitoring and Computing - March 20, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Neural Network Detects the Effects of p-CPA Pre-treatment on Brain Electrophysiology in a Rat Model of Focal Brain InjuryEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion EEG spectrum analysis with ANN was found successful in identifying the changes due to brain swelling as well as the effect of pretreatment of p-CPA in focal brain injury condition. Thus, the training and testing of ANN with EEG power spectra can be used as an effective diagnostic tool for early prediction and monitoring of brain injury as well as the effects of drugs in this condition. Content Type Journal ArticleDOI 10.1007/s10877-009-9173-0Authors Rakesh Kumar Sinha, Birla Institute of Technology Department of Biomedical Instrumentation Mesra, Ranchi Jharkhand 835215 IndiaYogender Aggarwa...
Source: Journal of Clinical Monitoring and Computing - March 20, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Neural Network Detects the Effects of p -CPA Pre-treatment on Brain Electrophysiology in a Rat Model of Focal Brain InjuryEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion EEG spectrum analysis with ANN was found successful in identifying the changes due to brain swelling as well as the effect of pretreatment of p-CPA in focal brain injury condition. Thus, the training and testing of ANN with EEG power spectra can be used as an effective diagnostic tool for early prediction and monitoring of brain injury as well as the effects of drugs in this condition. Content Type Journal ArticleDOI 10.1007/s10877-009-9173-0Authors Rakesh Kumar Sinha, Birla Institute of Technology Department of Biomedical Instrumentation Mesra, Ranchi Jharkhand 835215 IndiaYogender Aggarwa...
Source: Journal of Clinical Monitoring and Computing - March 20, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Hypotension after spinal anesthesia for cesarean section: identification of risk factors using an anesthesia information management systemEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions. Knowledge of these risk factors should increase the anesthesiologist’s attention to decide for the necessity to employ prophylactic or therapeutic techniques or drugs to prevent the neonate from any risk resulting of hypotension of the mother. Content Type Journal ArticleDOI 10.1007/s10877-009-9168-xAuthors F. Brenck, Universitätsklinikum Gießen und Marburg GmbH Department of Anesthesiology, Intensive Care Medicine, Pain Therapy Standort Gießen, Rudolf-Buchheim-Straße 7 35392 Gießen GermanyB. Hartmann, Universitätsklinikum Gießen und Marburg GmbH Department of Anesthesiology, Intensive Care Medi...
Source: Journal of Clinical Monitoring and Computing - March 11, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Evaluation of a computerized system for mechanical ventilation of infantsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions. A computerized system for mechanical ventilation is evaluated for treatment of infants. The results of the study show that the system has good potential for use in neonatal ventilatory care. Further refinements can be made in the system for very low-birth-weight infants. Content Type Journal ArticleDOI 10.1007/s10877-009-9170-3Authors Fleur T. Tehrani, California State University, Fullerton 800 N. State College Boulevard Fullerton CA 92831 USASoraya Abbasi, University of Pennsylvania School of Medicine Philadelphia PA USA Journal Journal of Clinical Monitoring and ComputingOnline ISSN 1573-2614Pr...
Source: Journal of Clinical Monitoring and Computing - March 5, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Low minimum alveolar concentration alarm: a standard for prevention of awareness during general anaesthesia maintained by inhalational anaestheticsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract Awareness during general anaesthesia is a rare but significant problem that can be frightening to the patients. We suggest that newer generation monitors should include this facility to provide a low alarm limit to MAC settings so as to improve the quality of patient care. Also we suggest that a “near empty” alarm be incorporated into vaporizers which can warn the anaesthesiologist prior to development of possible light plane of anaesthesia. We hope that adopting these two features can help enhance patient safety and can further aid in quality assurance. Content Type Journal ArticleDOI 10.100...
Source: Journal of Clinical Monitoring and Computing - March 1, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Early non invasive detection of hypercarbia in two cardiac surgical patientsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Abstract The availability of transcutaneous monitors has provided a means of non invasive assessment of CO2 tension and a trend of the ventilation status commonly in infants and neonates. The authors describe two cases of hypercapnia diagnosed early in adults by the non invasive transcutaneous measurement of carbon dioxide (tcpCO2) using TINA TCM4 in postoperative cardiac surgical patients who were mechanically ventilated. Curiously, this increase in tcpCO2 levels was associated with a false increase in the tcpO2 values though no changes in the ventilatory parameters to increase oxygenation were made. The prob...
Source: Journal of Clinical Monitoring and Computing - February 13, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Determination of Mutation Patterns in Human Ornithine Transcarbamylase PrecursorEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion. The results provide insight on mutation from the viewpoint based on random mechanism. Content Type Journal ArticleDOI 10.1007/s10877-009-9162-3Authors Shaomin Yan, Guangxi Academy of Sciences 98 Daling Road Nanning Guangxi Province 530007 ChinaGuang Wu, Computational Mutation Project, DreamSciTech Consulting 301, Building 12, Nanyou A-zone, Jiannan Road Shenzhen Guangdong Province 518054 China Journal Journal of Clinical Monitoring and ComputingOnline ISSN 1573-2614Print ISSN 1387-1307 (Source: Journal of Clinical Monitoring and Computing)
Source: Journal of Clinical Monitoring and Computing - February 11, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Haemodynamic Changes During Craniotomy Monitored By A Bioimpedance Plethysmographic Noninvasive Cardiac Output MonitorEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion Bioimpedance plethysmography is a useful noninvasive technique for monitoring and detailed analysis of the rapidly changing systemic haemodynamics during a craniotomy. The device could be useful for investigating important haemodynamic changes in specific neurosurgical settings. Content Type Journal ArticleDOI 10.1007/s10877-009-9166-zAuthors Zulfiqar Ali, All India Institute of Medical Sciences (AIIMS) Department of Neuroanaesthesia New Delhi 110 029 IndiaG. S. Umamaheswara Rao, National Institute of Mental Health and Neurosciences (NIMHANS) Department of Neuroanaesthesia Bangalore 560 029...
Source: Journal of Clinical Monitoring and Computing - February 11, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Sensor Fusion Using a Hybrid Median Filter for Artifact Removal in Intraoperative Heart Rate MonitoringEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions The hybrid median filter combines the structural and temporal information from two or more sensors and generates a robust estimate of heart rate without requiring strict assumptions about the signal’s characteristics. This method is intuitive, computationally simple, and the performance can be easily adjusted. These considerable benefits make this method highly suitable for clinical use. Content Type Journal ArticleDOI 10.1007/s10877-009-9163-2Authors Ping Yang, The University of British Columbia Department of Electrical and Computer Engineering 2332 Main Mall Vancouver BC V6T 1Z4 Canad...
Source: Journal of Clinical Monitoring and Computing - February 7, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Head Eye Co-ordination Using Simultaneous Measurement of Eye in Head and Head in Space Movements: Potential For Use in Subjects With a Whiplash InjuryEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions. The method of combined head and eye motion appears to give accurate, repeatable measurements. Case studies of whiplash subjects indicated deficits in head eye co-ordination. The method could be useful in further clinical research into eye and head movement in those with neck disorders. Content Type Journal ArticleDOI 10.1007/s10877-009-9160-5Authors Helena Grip, University Hospital of Umeå Department of Biomedical Engineering and Informatics Umeå 90185 SwedenGwendolen Jull, The University of Queensland The Whiplash Research Unit, Division of Physiotherapy Brisbane 4072 AustraliaJulia Treleaven, The Un...
Source: Journal of Clinical Monitoring and Computing - February 7, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals

Prediction interval analysis is underutilized and can be more helpful than just confidence interval analysisEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Content Type Journal ArticleDOI 10.1007/s10877-009-9165-0Authors Jonathan V. Roth, Albert Einstein Medical Center Department of Anesthesiology 5501 Old York Road Philadelphia PA 19141 USA Journal Journal of Clinical Monitoring and ComputingOnline ISSN 1573-2614Print ISSN 1387-1307 (Source: Journal of Clinical Monitoring and Computing)
Source: Journal of Clinical Monitoring and Computing - February 7, 2009 Category: Information Technology Tags: Journal of Clinical Monitoring and Computing Source Type: journals