Results of reoperation for failure of cardiac bioprostheses.
A ten-year experience with reoperations for failure of cardiac bioprostheses is reported. 362 patients were operated for valve replacement with 412 bioprostheses. There were 35 (9.64%) reoperations for valve failure. Mean time between operation and reoperation was of 64.4 months. Operative mortality was 14.28%: 3 patients died for cardiac and 2 for extra-cardiac causes. Long-term mortality after reoperation was 6.25%. Morphological examination of the explanted bioprostheses confirmed the cause of bioprosthetic valve failure, due to calcific degeneration in 88.88% of case, to post-endocarditic rupture in 5.55% and to prosthetic thrombosis in 2.77%. The importance of timing reoperation is stressed in order to reduce the operative mortality. The conditions suitable for implantation of bioprostheses are listed.
Festa
M
M
Cattedra di Chirurgia del Cuore e Grossi Vasi.
Renzulli
A
A
Santè
P
P
Micheletti
E
E
Giannolo
B
B
Palma
G
G
Cotrufo
M
M
D000293:Adolescent; D000328:Adult; D001021:Aortic Valve / Q000601:surgery; D001705:Bioprosthesis; D002648:Child; D002675:Child, Preschool; D004868:Equipment Failure; D005260:Female; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery; D011183:Postoperative Complications; D011475:Prosthesis Failure; D012086:Reoperation