Abstract
In the evolution of mitral valve surgery, Ivalon sponge was sutured to the posterior leaflet of the mitral valve to obtain competency. Between August 1959 and October 1962, 18 patients had this procedure. All patients were discharged home. Three patients were lost to follow-up 5 to 10 years after operation. Valve replacement was necessary in 7 patients 10.4 +/- 8.5 years after repair. Bacterial endocarditis causing late death occurred in 5 patients within 4 years. Five embolic episodes occurred. The estimated probability of survival and need for valve replacement at 28 years were 29.2% +/- 12.3% and 12.4% +/- 6.7%, respectively.
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