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- W2028895401 abstract "This study describes a novel 2-dimensional echocardiographic technique to measure left ventricular (LV) systolic twist in humans and relates this measure to early ventricular filling. LV twist is the counterclockwise rotation of the left ventricle during systole when viewed from the apex. The effect of ventricular twist has been postulated to store potential energy, which ultimately aids in diastolic recoil, leading to ventricular suction. The generated negative early diastolic pressures may augment early ventricular filling. We measured ventricular twist in 40 patients with normal transthoracic echocardiograms. End-systolic twist was determined by measuring rotation of the anterolateral papillary muscle about the center of the ventricle. LV filling was assessed by analysis of transmitral Doppler flow velocities. The mean value obtained was 9 ± 7° of rotation. Twist measurements were highly reproducible with an intraobserver correlation coefficient of r = 0.881, p <0.001. The magnitude of ventricular twist was strongly correlated positively with acceleration of the mitral E-wave (r = 0.75; p <0.0001) and negatively with the mitral E-wave acceleration time (r = −0.83; p <0.0001)." @default.
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- W2028895401 date "1998-06-01" @default.
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- W2028895401 title "Left Ventricular Systolic Torsion and Early Diastolic Filling by Echocardiography in Normal Humans" @default.
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- W2028895401 doi "https://doi.org/10.1016/s0002-9149(98)00222-7" @default.
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