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The Annals of Thoracic Surgery, Vol 28, 158-165, Copyright © 1979 by The Society of Thoracic Surgeons

ARTICLES

Clinical experience with the Lillehei-Kaster valve prosthesis

HH Zwart, G Hicks, B Schuster, M Nathan, F Tabrah, F Wenzke, T Ahmed and RA DeWall

The Lillehei-Kaster valve was used in 215 patients over a 7-year period. The aortic valve was replaced in 81 of them. Hospital mortality was 21% (17 patients). Ten patients were lost to follow-up and long- term mortality was 5% (3 patients). The incidence of thromboembolism was 2.6 per 100 patient-years, and actuarial survival was 96% at 5 and 87% at 7 years. Mitral valve replacement was performed in 108 patients. Hospital mortality was 20% (22 patients), 24 patients were lost to follow-up, and long-term mortality was 13% (11 patients). The combined incidence of thromboembolism was 5.0 per 100 patient-years, and actuarial survival was 81% at 5 years and 75% at 7 years. In both groups, the majority of patients improved clinically. Fifteen patients had double-valve replacement, and 11 had coronary revascularization in addition to valve replacement.