title: [Valve replacement for aortic stenosis].
abstract: We retrospectively reviewed 122 consecutive patients with aortic stenosis from January 1977 to December 1990. There were 68 male and 54 female patients. Their age ranged from 5 to 73 years old (47 +/- 16, mean +/- SD). Sixty eight patients also had associated mitral valve lesion, 13 patients had tricuspid valve lesion, and 3 patients had coronary artery disease. Aortic valve replacement was performed on all patients. Mechanical valves were implanted in 86 cases and tissue valves in 36 cases. Associated procedures were performed in 54 cases: mitral valve replacement in 34 cases, mitral valve repair in 18 cases and coronary artery bypass grafting in 2 cases. A bicuspid aortic valve was found in 20 cases (16.4%). Hospital mortality was 4.9% (6 cases). Follow-up was completed in 95% of the surviving cases (110 cases). The survival rate was 82 +/- 3% at 13 years and redo-free rate was 73 +/- 8% at 13 years. Seven cases required redo operation, due to tissue valve degeneration in 5 and thrombosis of the mechanical valve in 2. All 7 patients survived. Late death occurred in 6 cases: 3 from malignancy, 2 from stroke and 1 from ventricular arrhythmia. We concluded that valve replacement for aortic stenosis is a safe and satisfactory procedure with good long-term results.
authors.affiliation: Department of Thoracic & Cardiovascular Surgery, Chang Gung Memorial Hospital, Taipei, Taiwan, R.O.C.
authors.forename: C L
authors.initials: CL
authors.lastname: Kao
authors.forename: P J
authors.initials: PJ
authors.lastname: Lin
authors.forename: J P
authors.initials: JP
authors.lastname: Chang
authors.forename: J J
authors.initials: JJ
authors.lastname: Chu
authors.forename: M J
authors.initials: MJ
authors.lastname: Hsieh
authors.forename: C H
authors.initials: CH
authors.lastname: Chang
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001024:Aortic Valve Stenosis / Q000401:mortality / Q000601:surgery*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D015996:Survival Rate