title: [Discrete Subaortic Stenosis in an Adult; Report of a Case].
abstract: Discrete subaortic stenosis (DSS) is a well-described cause of isolated left ventricular outflow tract obstruction( LVOTO) in children. But prevalence, rate of progression and postoperative data in adults are limited. We report a case of a 30-year-old woman, who was referred to our institution because of chest pain and loss of consciousness. Echocardiography revealed DSS with LVOTO (peak gradient 81 mmHg) and mild aortic regurgitation. Increased age at the time of diagnosis, female sex and preoperative left ventricular outflow tract(LVOT) gradient ≥80 mmHg were thought to be predictors for reoperation, therefore the obstructing membrane was circumferentially excised and concomitant localized myectomy of the ventricular septum was performed to achieve complete relief of the LVOT obstruction. Her postoperative course was uneventful, and she was discharged on the 5th postoperative day.
authors.affiliation: Department of Cardiovascular Surgery, Sapporo Cardiovascular Clinic, Sapporo, Japan.
authors.forename: Keijiro
authors.initials: K
authors.lastname: Mitsube
authors.forename: Hirosato
authors.initials: H
authors.lastname: Doi
authors.forename: Ryuji
authors.initials: R
authors.lastname: Koshima
authors.forename: Satoshi
authors.initials: S
authors.lastname: Sumino
authors.forename: Makoto
authors.initials: M
authors.lastname: Hashimoto
authors.forename: Azusa
authors.initials: A
authors.lastname: Furugen
mesh_terms: D000328:Adult; D058385:Cardiac Valve Annuloplasty; D021922:Discrete Subaortic Stenosis / Q000209:etiology / Q000601:surgery*; D005260:Female; D006801:Humans; D016896:Treatment Outcome; D014694:Ventricular Outflow Obstruction / Q000150:complications / Q000151:congenital / Q000601:surgery*