title: [Percutaneous dilatation with a balloon catheter in subaortic stenoses].
abstract: Since 1987, percutaneous transluminal dilatation with a balloon catheter was performed in 4 patients with subaortic diaphragm. The patients' mean age was 13 years (range 6 to 22 years). Two of them were asymptomatic and all had mild to moderate aortic valve regurgitation. In all patients two-dimensional echocardiography showed the presence of sub-aortic stenosis. Following dilatation, 2D-echocardiography showed an image of membrane floating in the left ventricular outflow tract. The left ventricular systolic pressure fell from 194 +/- 24 to 147 +/- 16 mmHg and the intraventricular systolic gradient, from 92 +/- 21 to 31 +/- 3 mmHg. There were no changes in aortic regurgitation. No complication was observed.
authors.affiliation: Centre national de cardiologie et de chirurgie cardio-vasculaire, CHU Avicenne-Rabat.
authors.forename: A
authors.initials: A
authors.lastname: Chaara
authors.forename: S
authors.initials: S
authors.lastname: Abdelali
authors.forename: L
authors.initials: L
authors.lastname: Zniber
authors.forename: S
authors.initials: S
authors.lastname: el Oudghiri
authors.forename: A
authors.initials: A
authors.lastname: Bouzoubaa
authors.forename: M
authors.initials: M
authors.lastname: Benomar
mesh_terms: D000293:Adolescent; D000328:Adult; D001024:Aortic Valve Stenosis / Q000151:congenital / Q000503:physiopathology / Q000628:therapy*; D002404:Catheterization; D002648:Child; D004452:Echocardiography; D005260:Female; D006439:Hemodynamics; D006801:Humans; D008297:Male
vernacular_title: La dilatation percutanée par cathéter à ballonnet des sténoses sous-aortiques.