Long-term results of cardiac valve replacement with the Delrin-disc model of the Björk-Shiley valve prosthesis.

Abstract

One hundred two Björk-Shiley valve prostheses with the Delrin-disc occluder were implanted in 83 patients between January, 1971, and July, 1972. Fifty-eight were in the mitral position, 42 in the aortic, and 2 in the tricuspid. Complete follow-up until 1981 was obtained in 93% of the patients (mean follow-up, 66.8 months). Hospital mortality was 18% and late mortality, 19%. Survival according to actuarial methods was 84.8% at 5 years and 78.1% at 9 years after operation. Thromboembolism was detected in 8.8% of patients but caused no deaths. The incidence was 1.2% and 1.5% per year in those patients treated with Coumadin and antiplatelet agents, respectively. Reoperation was necessary in 13% of the patients. Most survivors (72%) are in New York Heart Association Functional Class I, despite a preoperative status of Class III or IV in 57% of the patients. Hospital mortality may be due to poorer understanding of patient management and less refined techniques of myocardial protection. Long-term survival with this prosthesis is similar to that in more recent studies, and rates of thromboembolism and malfunction compare favorably with other prosthetic valves.

• Authors: C G Montero, J J Rufilanchas, A Juffe, R Burgos, J Ugarte, D Figuera
• Journal: The Annals of thoracic surgery (Ann Thorac Surg) Vol. 37 Issue 4 Pg. 328-36 (Apr 1984) ISSN: 0003-4975 [Print] Netherlands
• PMID: 6712334 (Publication Type: Journal Article)

Topics

• Adolescent
• Adult
• Aortic Valve (surgery)
• Child
• Endocarditis, Bacterial (etiology)
• Female
• Follow-Up Studies
• Heart Valve Prosthesis (adverse effects, mortality, standards)
• Hemodynamics
• Hemorrhage (etiology)
• Humans
• Male
• Middle Aged
• Mitral Valve (surgery)
• Postoperative Complications
• Reoperation
• Thromboembolism (etiology)
• Tricuspid Valve (surgery)