Total 20 cases of reoperation for mitral vavular disease, which had been performed during the period from May 1983 till October, 1991, were reviewed. This study contained 1 case of previous balloon valvuloplasty and 1 case of death with bleeding
from
right ventricle during sternal reenrty. The average time intervals between reoperation and previous operation was 19 years in closed mitral commissurotomy(n=40, 7 years and 2 months in mitral valve replacement(n=10), 1 year and 8 months in mitral
valvuloplasty(n=4), 3 years and 10 months in open mitral commissurotomy (n=2).
The cause of reoperation in closed mitral commissurotomy was progression of the disease, and residual stenosis with progression was the cause in open mitral commissurotomy cases. Technical failure might be the causes of valvuloplasty. In
prosthetic
valve replacement group the causes of reoperation were primary failure. Also two cases of suggested valve thrombosis and one case of failure of tricuspid annuloplasty was noted inprosthetic valve replacement group.
The used valves for reoperation were Ionescue-Shiley in 3 cases, Bj?-Shiley in 6 cases, St. Jude Medical in 2 cases and Carbo Medics in 8 cases.
The mortality rate was 20% n=4 and the cases of death were low output syndrome in 1 case, multiple organ failure in 2 cases and bleeding in 1 cases during sternal reentry. During follw up 1 case of sudden death was observed.
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