to determine the usefulness of the time intervals obtained from the first derivative of apexcardiogram ( da/dt ) in assessing contraction and relaxation in cardiomyopathy , 11 patients with hypertrophic obstructive cardiomyopathy ( hocm ) and 9 patients with congestive cardiomyopathy ( cocm ) with hemodynamically and angiographically documented diagnosis were studied .
C0878544
cardiomyopathy
C0007193
congestive cardiomyopathy