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- W3140968104 abstract "BACKGROUNDRecently, several indexes such as tension-time index (TTI), tension-time or force-time integral (FTI), rate-pressure product (RPP), pressure-work index (PWI), and systolic pressure-volume area (PVA) have been developed as predictors of myocardial oxygen consumption in experimental and clinical studies. However, it is still unclear whether these indexes are reliable predictors of myocardial oxygen consumption under various contractile states in human hearts.METHODS AND RESULTSWe assessed the relation between TTI, FTI, RPP, PWI, and PVA and myocardial oxygen consumption per beat (VO2) in 13 patients with heart disease during volume loading. Left ventricular (LV) volume and pressure were measured simultaneously by the conductance catheter with the tipped micromanometer technique. VO2 was calculated from arterial coronary sinus oxygen content difference, and coronary sinus blood flow was measured by the thermodilution method. After z transformation of the correlation coefficients, mean z value for t..." @default.
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- W3140968104 date "1993-01-01" @default.
- W3140968104 modified "2023-09-24" @default.
- W3140968104 title "Comparison of hemodynamic determinants for myocardial oxygen consumption under different contractile states in human ventricle." @default.
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