Survival and bioprosthetic valve failure. Ten-year follow-up.
Between 1976 and 1982, 413 consecutive patients underwent valvular replacement with a bioprosthesis. Aortic valve replacement was performed in 240 patients, mitral valve replacement in 132, and multiple-valve replacement in 41. Four prostheses were employed: Carpentier-Edwards porcine (n = 336), Angel-Shiley porcine (n = 23), Hancock porcine (n = 11), and Ionescu-Shiley pericardial (n = 43). Follow-up was conducted between 5 and 12 years postoperatively and was 98% complete. Survival was 65 +/- 4% at 10 years and was independently influenced by advancing age, poor ventricular function, male sex, concomitant coronary artery bypass surgery, and valvular type. The risk of structural valvular dysfunction, reoperation, and any valve-related mortality and morbidity was significantly increased with the Ionescu-Shiley pericardial prosthesis. Long-term survival after valvular replacement was influenced by patient- and valve-related factors. The Ionescu-Shiley pericardial valve had an unusually high incidence of premature failure.
Division of Cardiovascular Surgery, Toronto General Hospital, Ontario, Canada.
K H
KH
Teoh
J
J
Ivanov
R D
RD
Weisel
I C
IC
Darcel
H
H
Rakowski
D000328:Adult; D000367:Age Factors; D000368:Aged; D001021:Aortic Valve; D001705:Bioprosthesis / Q000009:adverse effects / Q000401:mortality*; D005260:Female; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis / Q000009:adverse effects / Q000401:mortality*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve; D011183:Postoperative Complications / Q000453:epidemiology / Q000401:mortality; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation; D012307:Risk Factors; D012737:Sex Factors