Observations on myocardial ischemia.
نویسندگان
چکیده
منابع مشابه
Observations on factors affecting local forces in the left ventricular wall during acute myocardial ischemia.
The factors affecting local myocardial function in the presence of ischemic myocardial damage may considerably influence cardiac function and the extent of tissue damage resulting from the initial ischemic injury. However, previous attempts to study local wall forces in the ischemic myocardium have produced variable results. In the present study, a technique was developed for recording isometri...
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Difficulties in studying myocardial metabolism with adequate time resolution have led to contradictory conclusions regarding the mechanisms causing contractile abnormalities during the early stages of ischemia. In acutely instrumented swine, we investigated whether abnormalities in subendocardial ATP, phosphocreatine, or lactate content develop rapidly enough during the first few heart beats af...
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Regional myocardial blood flow and contractile function in ischemic myocardium are well matched, and there is no evidence for an oxygen supply/demand imbalance. Thus, myocardial ischemia is lack of coronary blood flow with electric, functional, metabolic, and structural consequences for the myocardium. All therapeutic interventions must aim to improve blood flow to ischemic myocardium as much a...
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The purpose of this study was to determine whether low doses of carbon monoxide (CO) exacerbate myocardial ischemia during a progressive exercise test. The effect of CO exposure was evaluated using the objective measure of time to development of electrocardiographic changes indicative of ischemia and the subjective measure of time to onset of angina. Sixty-three male subjects (41-75 years) with...
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Sbarouni et al. (1) reported on “Ischemia-Modified Albumin [IMA] in Relation to Exercise Stress Testing [EST]” in a previous issue of the Journal. Although the investigators found significant differences in the IMA values at baseline, peak exercise, and after EST, there was no relation between the IMA changes and the result of the EST. The researchers stated that changes in IMA levels do not re...
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ژورنال
عنوان ژورنال: Japanese Circulation Journal
سال: 1983
ISSN: 0047-1828,1347-4839
DOI: 10.1253/jcj.47.1147