The Annals of Thoracic Surgery, Vol 20, 204-208, Copyright © 1975 by The Society of Thoracic Surgeons
Apparent coexistent valvular and subvalvular left ventricular outflow tract obstruction
JH Horgan, VE Kemp, WF Dutz and RR Lower
A patient is presented in whom coexisting bicuspid valvular aortic stenosis
and asymmetrical septal hypertrophy were suggested by echocardiography. A
focal area of hypertrophy noted at operation was excised. Subsequent
histological examination did not reveal evidence to support the echographic
and surgical observations. The necessity for careful intraoperative
assessment of the degree and nature of subvalvular muscular hypertrophy is
stressed. The absence of classic echographic findings in these patients is
noted.