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• W2023124297 abstract "Thirty-three patients with untreated, uncomplicated essential hypertension were studied by noninvasive techniques to assess left ventricular function. Isometric contraction period, corrected ejection time and isometric relaxation period were measured by simultaneous recording of the apex cardiogram, carotid pulsations and phonocardiogram. The patients were classified into subgroups with high, normal and low cardiac index. The isometric contraction period of each subgroup varied inversely and mean systolic ejection rate varied directly with mean blood pressure. Multiple regression analysis showed that variations in isometric contraction period, mean systolic ejection rate and cardiac index could explain at least 60 percent of the variation in mean blood pressure in all patients studied. These data demonstrate the important role played by left ventricular function but shed no light on the mechanism of its variability in essential hypertension. Thirty-three patients with untreated, uncomplicated essential hypertension were studied by noninvasive techniques to assess left ventricular function. Isometric contraction period, corrected ejection time and isometric relaxation period were measured by simultaneous recording of the apex cardiogram, carotid pulsations and phonocardiogram. The patients were classified into subgroups with high, normal and low cardiac index. The isometric contraction period of each subgroup varied inversely and mean systolic ejection rate varied directly with mean blood pressure. Multiple regression analysis showed that variations in isometric contraction period, mean systolic ejection rate and cardiac index could explain at least 60 percent of the variation in mean blood pressure in all patients studied. These data demonstrate the important role played by left ventricular function but shed no light on the mechanism of its variability in essential hypertension." @default.
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• W2023124297 date "1973-01-01" @default.
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• W2023124297 title "Left ventricular function in essential hypertension" @default.
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• W2023124297 doi "https://doi.org/10.1016/s0002-9149(73)80131-6" @default.
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