Left Ventricular QRS Widening Decreases Emax without Lowering VO2-PVA Relation in Dog Hearts.
نویسندگان
چکیده
منابع مشابه
Increased oxygen cost of contractility in stunned myocardium of dog.
Recent studies have shown that myocardial oxygen consumption does not proportionally decrease with the deterioration of contractile function in stunned myocardium. To investigate this disproportion, we studied the end-systolic pressure-volume relation and the relation between oxygen consumption per beat (VO2) and systolic pressure-volume area (PVA, a measure of total mechanical energy) in stunn...
متن کاملIncreased Oxygen Cost of Contractilit in Stunned Myocardium of Dog
Recent studies have shown that myocardial oxygen consumption does not proportionally decrease with the deterioration of contractile function in stunned myocardium. To investigate this disproportion, we studied the end-systolic pressure-volume relation and the relation between oxygen consumption per beat (Vo2) and systolic pressure-volume area (PVA, a measure of total mechanical energy) in stunn...
متن کاملStunned Myocardium of Dog
Recent studies have shown that myocardial oxygen consumption does not proportionally decrease with the deterioration of contractile function in stunned myocardium. To investigate this disproportion, we studied the end-systolic pressure-volume relation and the relation between oxygen consumption per beat (Vo2) and systolic pressure-volume area (PVA, a measure of total mechanical energy) in stunn...
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To assess the relation between increases in contractile function and oxygen consumption (VO2) during increased coronary flow (Gregg's phenomenon), we measured the end-systolic pressure-volume relation and the relation between VO2 and left ventricular systolic pressure-volume area (PVA, a measure of total mechanical energy output) in blood-perfused, isovolumically contracting rabbit hearts durin...
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We studied the effects of cardiac cooling by 7 +/- 2 degrees C (SD) from 36 degrees C on both contractility index (Emax) and the relation between O2 consumption per beat (VO2) and systolic pressure-volume area (PVA) of the left ventricle in the excised cross-circulated dog heart preparation. PVA represents the total mechanical energy generated by a contraction. The VO2-PVA relation divides meas...
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ژورنال
عنوان ژورنال: The Japanese Journal of Physiology
سال: 1993
ISSN: 0021-521X
DOI: 10.2170/jjphysiol.43.379