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Procedure: Perfusion
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Total 15257 results found since Jan 2013.
Mechanistic insights on age-related changes in heart-aorta-brain hemodynamic coupling using a pulse wave model of the entire circulatory system
In this study, we utilize a well-established and validated one-dimensional blood flow and pulse wave computational model of the circulatory system in order to address how age-related changes in cardiac function and vasculature affect the underlying mechanisms involved in the LV-aorta-brain hemodynamic coupling. Our results reveal how LV contractility affects pulsatile energy transmission to the brain, even with preserved cardiac output. Our model demonstrates the existence of an optimal heart rate (near the normal human heart rate) that minimizes pulsatile energy transmission to the brain at different contractility levels....
Source: American Journal of Physiology. Heart and Circulatory Physiology - September 15, 2023 Category: Physiology Authors: Arian Aghilinejad Faisal Amlani Sohrab P Mazandarani Kevin S King Niema M Pahlevan Source Type: research
Tumoral and peritumoral vascularization of brain tumours: a study comparing an intraoperative ultrasensitive Doppler and a preoperative first-pass perfusion MRI
CONCLUSION: There was a good correlation between a tumor FMBV obtained by a USD intraoperatively and rCCBV on a preoperative MRI validating the reliability of USD for intraoperative analyses of tumor microvascularization in gliomas.PMID:37714376 | DOI:10.1016/j.neuchi.2023.101493
Source: Neuro-Chirurgie - September 15, 2023 Category: Neurosurgery Authors: Camille Courtin Guillaume Lacoin Jean-Pierre Remenieras C écilia Denis Rousselot Paul-Armand Dujardin Ilyess Zemmoura Jean-Philippe Cottier Source Type: research
The "hand as foot" teaching method in cardiac anatomy of myocardial perfusion imaging
Asian J Surg. 2023 Sep 13:S1015-9584(23)01398-2. doi: 10.1016/j.asjsur.2023.08.226. Online ahead of print.NO ABSTRACTPMID:37714790 | DOI:10.1016/j.asjsur.2023.08.226
Source: Hand Surgery - September 15, 2023 Category: Surgery Authors: RuiLong Niu XinAi Wu JianMei Sun Source Type: research
Tumoral and peritumoral vascularization of brain tumours: a study comparing an intraoperative ultrasensitive Doppler and a preoperative first-pass perfusion MRI
CONCLUSION: There was a good correlation between a tumor FMBV obtained by a USD intraoperatively and rCCBV on a preoperative MRI validating the reliability of USD for intraoperative analyses of tumor microvascularization in gliomas.PMID:37714376 | DOI:10.1016/j.neuchi.2023.101493
Source: Neuro-Chirurgie - September 15, 2023 Category: Neurosurgery Authors: Camille Courtin Guillaume Lacoin Jean-Pierre Remenieras C écilia Denis Rousselot Paul-Armand Dujardin Ilyess Zemmoura Jean-Philippe Cottier Source Type: research
The "hand as foot" teaching method in cardiac anatomy of myocardial perfusion imaging
Asian J Surg. 2023 Sep 13:S1015-9584(23)01398-2. doi: 10.1016/j.asjsur.2023.08.226. Online ahead of print.NO ABSTRACTPMID:37714790 | DOI:10.1016/j.asjsur.2023.08.226
Source: Asian Journal of Surgery - September 15, 2023 Category: Surgery Authors: RuiLong Niu XinAi Wu JianMei Sun Source Type: research
Indocyanine Green in Bariatric Surgery: a Systematic Review
This study aims to summarize published manuscripts on outcomes of ICG use and reduction of complications compared to traditional leak test and tissue perfusion evaluation. A PubMed search using “ICG and bariatric surgery,” “ICG and gastric sleeve,” “ICG and gastric bypass,” and “ICG and revisional bariatric surgery” was performed. The proportion of patients who underwent an intraoperative decision change due to ICG was 3.8% (95% CI: 2.0 to 7.2%). ICG fluorescent imaging in bariatric surgery is a valuable tool, and further studies are needed to confirm its utility for routine use in both standard or complex ...
Source: Obesity Surgery - September 15, 2023 Category: Surgery Source Type: research
Involvement of mitochondrial dynamics and mitophagy in diabetic endothelial dysfunction and cardiac microvascular injury
Arch Toxicol. 2023 Sep 14. doi: 10.1007/s00204-023-03599-w. Online ahead of print.ABSTRACTEndothelial cells (ECs), found in the innermost layer of blood vessels, are crucial for maintaining the structure and function of coronary microcirculation. Dysregulated coronary microcirculation poses a fundamental challenge in diabetes-related myocardial microvascular injury, impacting myocardial blood perfusion, thrombogenesis, and inflammation. Extensive research aims to understand the mechanistic connection and functional relationship between cardiac EC dysfunction and the development, diagnosis, and treatment of diabetes-related...
Source: Archives of Toxicology - September 14, 2023 Category: Toxicology Authors: Xiao Zhang Hao Zhou Xing Chang Source Type: research
Hydrogen Peroxide Affects the Electroretinogram of Isolated Perfused Rat Retina
CONCLUSIONS: H2O2 affects retinal function as shown by ERGs in isolated rat retina. The response differs with the dose of H2O2, suggesting that mechanisms underlying the action at low doses might be different from those at high doses. Our results also suggest an effect of H2O2 on ionic currents and/or neurotransmitter releases involved in the generation of the ERG and indicate a more pronounced effect on photoreceptors than on postsynaptic cells.PMID:37706511 | DOI:10.1080/02713683.2023.2256029
Source: Current Eye Research - September 14, 2023 Category: Opthalmology Authors: Nathalie Jacquemot Eric Wersinger Philippe Brabet David Cia Source Type: research
Improving liver transplant outcomes with transplant-omics and network biology
Curr Opin Organ Transplant. 2023 Sep 13. doi: 10.1097/MOT.0000000000001100. Online ahead of print.ABSTRACTPURPOSE OF REVIEW: Molecular omics data is increasingly ubiquitous throughout medicine. In organ transplantation, recent large-scale research efforts are generating the 'transplant-ome' - the entire set of molecular omics data, including the genome, transcriptome, proteome, and metabolome. Importantly, early studies in anesthesiology have demonstrated how perioperative interventions alter molecular profiles in various patient populations. The next step for anesthesiologists and intensivists will be to tailor perioperat...
Source: Current Opinion in Organ Transplantation - September 14, 2023 Category: Transplant Surgery Authors: Joseph Scarpa Source Type: research
Use of extracorporeal membrane oxygenation and cerebral oximetry in a stage 1 norwood repair for hypoplastic left heart syndrome
We report a case where the use of ECMO was beneficial after stage I Norwood palliation with severe ventricular dysfunction. The systemic-to-pulmonary artery shunt was kept open to balance the systemic and pulmonary circulations. Cerebral oximetry can be useful as an additional monitoring modality to guide management, monitor cerebral perfusion, and help detect cerebral steal.PMID:37706390 | DOI:10.4103/0971-9784.320955
Source: Annals of Cardiac Anaesthesia - September 14, 2023 Category: Anesthesiology Authors: Anam A Kazi Kamlesh B Tailor M C Manoj Smruti Ranjan Mohanty Source Type: research
