Systolic anterior motion of the mitral valve following annuloplasty.

Abstract

1 Director of Cardiology, John Peter Smith Hospital, 1500 South Main Street, Fort Worth, Texas 76104. 2 Chief Echocardiographic Technician, Division of Cardiodiagnostic Services, John Peter Smith Hospital, Fort Worth, Texas 76104. 3 500 South University, Little Rock, Arkansas 77205. Systolic anterior motion (SAM) of the mitral valve is usually seen in association with idiopathic hypertrophic subaortic stenosis (IHSS), although this finding has also been seen in patients with primary pulmonary hypertension,’ atrial septal defect 2, 3 mitral valve prolapse,4--6 left ventricular aneurysm,5 hypertrophic cardiomyopathy without gradient,7 severe aortic insufficiency,&dquo; in the setting of hypovolemia with administration of pressor drugs,9 and in patients with d-transposition of the great arteries following mustard operation.’° This paper reports a case in which systolic anterior motion of the mitral valve was noted following mitral annuloplasty.