title: [Subvalvular aortic stenosis. Apropos of 3 cases].
abstract: The three cases reported here illustrate the most frequent varieties of infra-valvular congenital aortic stenosis secondary to a fixed obstacle: such as a thin membrane located a few millimeters under the aortic ring; such as a fibro-muscular membrane at some distance of the ring; such as an infra-aortic fibro-muscular tunnel. The clinical symptoms and evolutive risks are reviewed. Ultrasound cardiography enables to make an accurate diagnosis and evaluate the associated lesions. A surgical indication is made in symptomatic forms with a gradient exceeding 40 mmHg. The advantage of early surgery is to decrease the risk of heart failure. The various surgical techniques are presented.
authors.affiliation: Service de Cardiologie, Hôpital Beaujon, Paris.
authors.forename: E
authors.initials: E
authors.lastname: Bruckert
authors.forename: P
authors.initials: P
authors.lastname: Assayag
authors.forename: P
authors.initials: P
authors.lastname: Thireau
authors.forename: G
authors.initials: G
authors.lastname: Gournay
authors.forename: M
authors.initials: M
authors.lastname: Beausoleil
authors.forename: P E
authors.initials: PE
authors.lastname: Valère
mesh_terms: D000293:Adolescent; D000328:Adult; D001020:Aortic Stenosis, Subvalvular / Q000150:complications / Q000151:congenital* / Q000473:pathology; D002312:Cardiomyopathy, Hypertrophic / Q000151:congenital*; D005260:Female; D006801:Humans; D008297:Male
vernacular_title: Rétrécissement aortique sous-valvulaire. A propos de 3 observations.