Isolated mitral valve replacement with the Kay-Shiley disc. valve. Acturial analysis of the long term results.
During a five-year period the Kay-Shiley (K and T series) prosthesis was used for 83 isolated mitral valve replacements. There were 14 early deaths, for a 17.28 per cent mortality rate. Survival determined by the actuarial method revealed a 6 year cumulative survival rate of 39.8 per cent. Thromboembolism was a significant problem in this series, with 33 patients experiencing a total of 55 embolic events. This represented a rate of 24.7 emboli per 1,000 patient months at risk. From our experience, it is concluded that the Kay-Shiley prosthesis is associated with a high incidence of thromboembolism and late death.
D000293:Adolescent; D000328:Adult; D000368:Aged; D006328:Cardiac Catheterization; D002648:Child; D005260:Female; D006350:Heart Valve Prosthesis / Q000401:mortality*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve; D011183:Postoperative Complications / Q000209:etiology / Q000401:mortality; D012214:Rheumatic Heart Disease / Q000601:surgery; D013923:Thromboembolism / Q000209:etiology* / Q000401:mortality; D013997:Time Factors