An apex cardiographic index “(peak da/dt)/A” for the assessment of left ventricular function

Abstract

The apex cardiographic index (peak DA/Dt)/A was compared with hemodynamic and angiographic indexes of left ventricular function in 32 patients with various cardiac diseases. The significant correlations were observed between (peak DA/Dt)/A and the following: (peak DP/Dt)/PIP (r = 0.71), (DP/Dt)/P at P = 50 mmHg (r = 0.81), Vmax (r = 0.88), and ejection fraction (r = 0.56). These data suggest that the apex cardiographic index is useful for the assessment of left ventricular function. © 1974, The Japanese Circulation Society. All rights reserved.