title: Discrete subaortic stenosis after successful treatment of congenital aortic valve stenosis.
abstract: Two cases of discrete subaortic obstruction which developed in a previously normal left ventricular outflow tract of patients with congenital valvar aortic stenosis are described. These examples emphasize the need for careful scrutiny of the etiology of recurrent postoperative left ventricular outflow tract obstruction.
authors.affiliation: Department of Pediatric (Cardiology), University of Tennessee School of Medicine, Memphis.
authors.forename: M A
authors.initials: MA
authors.lastname: Salim
authors.forename: D C
authors.initials: DC
authors.lastname: Watson
authors.forename: B S
authors.initials: BS
authors.lastname: Alpert
authors.forename: T G
authors.initials: TG
authors.lastname: Di Sessa
mesh_terms: D001024:Aortic Valve Stenosis / Q000151:congenital* / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D006328:Cardiac Catheterization; D002404:Catheterization; D017023:Coronary Angiography; D004562:Electrocardiography; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D014463:Ultrasonography