PMID: 8952837Sep 1, 1996Paper

Long-term results over 20 years of aortic valve replacement with the standard Björk-Shiley prosthesis

Archives des maladies du coeur et des vaisseaux
J VallaY Logeais

Abstract

Between January 1971 and December 1978, 865 standard Björk-Shiley prostheses (spheric or conic carbon disc) were implanted in the Department of Thoracic and Cardiovascular Surgery of the University Hospital of Rennes. Three hundred and fifty seven consecutive patients who underwent isolated aortic valve replacement were included in the study : 246 men (69%) and 111 women (31%) with an average age of 57.5 years (range : 24-80 years). One hundred and sixty eight patients (48%) were in NYHA Class II. 141 (39%) in Class III and 48 (13%) in Class IV. The valvular disease was stenotic in 304 cases (85%) and regurgitant in 53 cases (15%). The hospital mortality was 35 (9.8%). The main causes of death were cardiac (23 cases, 66%). The long-term results contain 322 survivors of surgery (mean follow-up 12 years, follow-up rate 99%, representing 3726 patient-years). The actuarial survival (including hospital mortality) was 76% at 5 years. 61% at 10 years, 47% at 15 years and 26% at 20 years. The average age of the survivors at present is 71 years and 95% are NYHA classes I or II. The causes of the 171 late fatalities were cardiac in 49 cases (1.3% per patient-year). Death was related to the prosthesis in 32 cases (0.8% per patient-year) :...Continue Reading

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