نتایج جستجو برای: permanent cardiac ischemia
تعداد نتایج: 401973 فیلتر نتایج به سال:
The paper describes an optimization problem of identifying heart ischemia using ECG measurements on the torso surface. Heart ischemia is a condition of reduced blood supply to cardiac tissue and can lead to heart infarctions. In the simulations, we model the cardiac electrical activity by a stationary form of the bidomain equations. These are solved using an adaptive finite element method on a ...
Background—Oxidative stress and mitochondrial dysfunction are central mediators of cardiac dysfunction after ischemia/ reperfusion. ATP binding cassette mitochondrial erythroid (ABC-me; ABCB10; mABC2) is a mitochondrial transporter highly induced during erythroid differentiation and predominantly expressed in bone marrow, liver, and heart. Until now, ABC-me function in heart was unknown. Severa...
Polyamines (putrescine, spermidine, and spermine) are present in all higher eukaryotic cells and are essential for cell growth, differentiation and apoptosis. Sharing common precursor with polyamines, nitric oxide (NO) is associated with myocardial ischemia/reperfusion injury by the generation of peroxynitrite. Although polyamines have been implicated in tissue ischemia injury, their metabolism...
objective: although coronary artery disease (cad) is the leading cause of death in type 2 diabetic patients, it is frequently asymptomatic. myocardial perfusion imaging (mpi) is reported to show ischemia in a significant number of asymptomatic diabetic patients. we studied the prevalence and severity of myocardial perfusion defects in asymptomatic diabetic patients and its clinical impact. meth...
Background: Creatine kinase is a cardiac biomarker that is used for the assessment of ischemic injuries and myocardial infarction. The present study was designed to evaluate effects of oxytocin administration during ischemia and reperfusion periods on CK-MB levels in the coronary effluent of isolated rat heart and the possible role of oxytocin receptor, nitric oxide (NO), prostacyclin and mitoc...
A deceased 79 year old man with a permanent cardiac pacemaker was due to be cremated, but the pacemaker generator was not detectable by palpation. A hand held metal detector to locate the device so that it could be extracted before cremation.
Strategies to rule out myocardial infarction (MI)2 in the emergency department include stress test echocardiography, electrocardiography, and assessment of cardiac biomarkers such as troponin I and T (1). The potential for new high-sensitivity cardiac troponin testing to simplify and expedite these rule-out protocols is of great interest. Is all the hype justified? Or are we placing unreasonabl...
Abstract Aims To study aetiologies of in-hospital cardiac arrests (IHCAs) and their association with 30-day survival. Methods Observational data from national registries. Specific (n = 22) IHCA patients between April 2018 December 2020 were categorized into vs. non-cardiac six main aetiology categories: myocardial ischemia, other causes, pulmonary infection, haemorrhage, causes. Main endpoints ...
Introduction: Myocardial infarction (MI) is defined pathologically as cardiac muscle cell death due to abnormal blood flow, prolonged coronary artery ischemia, and replacement of cardiac tissue necrosis as a dense fibrotic lesion. Expression of collagen-1 protein levels and fibrosis increase after myocardial infarction in cardiac tissue. The aim of present study was to investigate the effect of...
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