title: Fixed subaortic stenosis revisited. congenital abnormalities in 72 new cases and review of the literature.
abstract: Seventy-two patients aged 2-65 years (mean 20.2) with fixed subaortic stenosis (FSS) are reported. All patients underwent echocardiography and angiography prior to surgical intervention. Sixty-four (89%) had discrete subaortic stenosis (DSS) and 8 (11%) tunnel type stenosis (TSS). Patients with DSS aged 2-65 years (mean 29) while patients with TSS aged 10-34 years (mean 19) and had a distinct female preponderance (7:1). Twenty-five patients (39%) with DSS had other congenital abnormalities of which aortic stenosis associated with bicuspid aortic valve was slightly more common than ventricular septal defect (7:6). Five patients with TSS had a small aortic annulus and hypoplastic aorta. Our data and those in the literature indicate that TSS although related to DSS has certain features that may set it apart as a distinct entity. In addition DSS appears to be associated with aortic stenosis and bicuspid aortic valve as frequently as with ventricular septal defect.
authors.affiliation: Cardiology Department, Hippokration Hospital, University of Athens, Greece.
authors.forename: K
authors.initials: K
authors.lastname: Tentolouris
authors.forename: T
authors.initials: T
authors.lastname: Kontozoglou
authors.forename: A
authors.initials: A
authors.lastname: Trikas
authors.forename: S
authors.initials: S
authors.lastname: Brilli
authors.forename: E
authors.initials: E
authors.lastname: Chlapoutakis
authors.forename: N
authors.initials: N
authors.lastname: Exadactylos
authors.forename: C
authors.initials: C
authors.lastname: Pitsavos
authors.forename: P
authors.initials: P
authors.lastname: Toutouzas
mesh_terms: D000293:Adolescent; D000328:Adult; D001024:Aortic Valve Stenosis / Q000150:complications / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D006328:Cardiac Catheterization; D002648:Child; D002675:Child, Preschool; D017023:Coronary Angiography; D015150:Echocardiography, Doppler; D005260:Female; D006330:Heart Defects, Congenital / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged