Coronary flow and perfusion pressure
نویسندگان
چکیده
منابع مشابه
Coronary perfusion pressure during cardiopulmonary resuscitation.
Currently, there is no way to measure the effectiveness of cardiopulmonary resuscitation in humans. The literature suggests that minimum aortic diastolic and estimated coronary perfusion pressures during cardiopulmonary resuscitation (CPR) in the animal model correlate with higher resuscitation rates. Six patients were studied during CPR to determine the arterial diastolic and estimated coronar...
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Introduction:Patients with the coronary slow flow phenomenon (SCF) frequently experience angina episodes. The purpose of this study was to determine efficacy of nicorandil in myocardial perfusion in patients with SCF. Methods: Twenty patients (50.85 ± 12.96 y) with SCF were studied. We evaluate coronary slow flow according to protracted thrombolysis in m...
متن کاملEffects of coronary blood flow and perfusion pressure on left ventricular contractility in dogs.
The effects of changes in coronary blood flow and coronary artery pressure on left ventricular (LV) contractility were determined in 18 animals. Dogs on cardiopulmonary bypass provided isovolumetric LV contractions during controlled perfusion of the coronary circulation. Coronary venous efflux, myocardial oxygen consumption, peak LV pressure, LV dp/dt, and the forcevelocity relations of the LV ...
متن کاملEffect of perfusion pressure distal to a coronary stenosis on transmural myocardial blood flow.
We tested the hypothesis that reductions of perfusion pressure distal to a flow-limiting coronary artery stenosis can directly impair perfusion of the subendocardial myocardium. Dogs were instrumented with an electromagnetic flowmeter probe and a variable occluder on the proximal left circumflex coronary artery. Coronary perfusion pressure was measured with a catheter distal to the occluder. Co...
متن کاملRole of adenosine in coronary blood flow regulation after reductions in perfusion pressure.
We employed intracoronary infusion of adenosine deaminase to test the hypothesis that endogenous adenosine contributes to regulation of coronary blood flow following acute reductions in coronary artery pressure. In 16 closed-chest anesthetized dogs, we perfused the left circumflex coronary artery from a pressurized arterial reservoir and measured coronary blood flow following changes in perfusi...
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ژورنال
عنوان ژورنال: Indian Journal of Pharmacology
سال: 2009
ISSN: 0253-7613
DOI: 10.4103/0253-7613.48877