Validity of myocardial oxygen consumption parameters
نویسندگان
چکیده
منابع مشابه
Hemodynamic dependence of myocardial oxygen consumption indexes.
We tested the afterload and contractile state dependency of three indexes of myocardial oxygen consumption (MVO2): total energy requirement (Et), pressure work index (PWI), and pressure-volume area (PVA). MVO2 was measured in seven isolated canine hearts at four or five different end-diastolic volumes at each of three settings of afterload resistance and with the hearts contracting isovolumical...
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Background: Hand grip strength (HGS) is a reliable indicator of peripheral muscle strength. Although, numerous studies have investigated the strength of hand grip; little attention has been given to coronary artery disease (CAD) patients, exploring the relationship between HGS and myocardial oxygen consumption (MVO2) index. The current study aimed to evaluate the interaction between HGS and MVO...
متن کاملVelocity of contraction as a determinant of myocardial oxygen consumption.
SONNENBLICK, EDMUND H., JOHN Ross, JR., JAMES W. COVELL, GERARD A. KAISER, AND EUGENE BRAUNWALD. Velocity of contraction US a determinant of rnyocardial oxygen consumption. Am, J, Physiol. 2og(5) : 919-927. Ig65.-In 12 dogs on rightheart bypass with heart rate, stroke volume, and aortic pressure constant, the velocity of contraction was augmented comparably by three fundamentally distinct inter...
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Background Impaired myocardial oxygenation leading to ischemia is central to the pathophysiology of coronary artery disease and an important contributor to other common cardiovascular disease conditions such as left ventricular hypertrophy, dilated cardiomyopathy, renal heart disease and valvular heart disease. Positron Emission Tomography (PET) can quantify myocardial oxygen consumption (MVO2)...
متن کاملEffect of arterial hypoxia on myocardial oxygen consumption.
To evaluate the effect of arterial hypoxia on myocardial oxygen consumption (MVO2) under controlled conditions of stable or decreased contractility and tension, 18 anesthetized, adrenergically blocked dogs on right heart bypass were studied. Heart rate, cardiac output, pH, and Pco2 were constant. In 9 dogs, progressive decreases in arterial oxygen content were associated with progressive signif...
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ژورنال
عنوان ژورنال: Clinical Cardiology
سال: 1979
ISSN: 0160-9289
DOI: 10.1002/clc.4960020502