hence , aortic flow-velocity waveforms with altered contour and duration ( resembling those recorded in patients with obstructive hypertrophic cardiomyopathy ) were infrequently identified by pulsed doppler echocardiography in subjects with normal hearts and were not characteristic of the overall aortic flow-velocity pattern in any of these subjects .
C0007194
obstructive hypertrophic
C0018787
hearts