25 years follow-up of patients after replacement of the aortic valve with a Smeloff-Cutter prosthesis.
Thirty years ago the Smeloff-Cutter double-caged ball prosthesis was developed for aortic valve replacement. Between 1967 and 1977 a total of 46 patients admitted to the University Hospital Munich underwent an isolated aortic valve replacement with the Smeloff-Cutter prosthesis. Postoperatively all patients received anticoagulation treatment with phenprocoumon (Marcumar). A retrospective follow-up of 95.6% of patients, representing 842 patient years, was completed. The corresponding actuarial survival rates after 10, 20, and 25 years were 69.1%, 47.4%, and 31.4%. The actuarial freedom rates from either valve-related complications, reoperations, or death were 72.9%, 47.4%, and 20.3%. Thromboembolism occurred in 1.41% per patient year, bleeding in 1.90%. The rates of valvular dysfunction, reoperation, and endocarditis were 1.16%, 1.16%, and 0.2% per patient-year. Today, of the surviving patients 81% are in NYHA Class I or II, 19% in NYHA Class III. No surviving patient deteriorated over the reported time in his or her functional NYHA classification. After 25 years the Smeloff-Cutter valve has proved to be a reliable prosthesis for aortic valve replacement and-together with the Starr-Edwards prosthesis-it has set a standard in longterm durability by which all other valve designs will have to be measured.
Gödje
O
O
Department of Cardiac Surgery, University Hospital Grosshadern, Ludwig-Maximilians-University, Munich, Germany.
Fischlein
T
T
Adelhard
K
K
Mair
H
H
Reichart
B
B
D000293:Adolescent; D000328:Adult; D000368:Aged; D001021:Aortic Valve / Q000601:surgery*; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006349:Heart Valve Diseases / Q000601:surgery; D006350:Heart Valve Prosthesis / Q000295:instrumentation* / Q000401:mortality; D006801:Humans; D007431:Intraoperative Complications / Q000401:mortality; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000401:mortality* / Q000517:prevention & control / Q000601:surgery; D012086:Reoperation; D012189:Retrospective Studies; D015996:Survival Rate