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채헌,박성혁,안혁,김종환,Chae, Hurn,Park, Sung-Hyuck,Ahn, Hyuk,Kim, Chong-Whan 대한흉부심장혈관외과학회 1989 Journal of Chest Surgery (J Chest Surg) Vol.22 No.1
A total of 420 pyrolytic carbon mechanical valves were implanted in 336 patients from January, 1984, through Jung, 1988. Of the valves implanted, 131 were Bjork-Shiley, 250 St-Jude, and 39 Duromedics. The cumulative follow-up was 398 patient-years with a mean follow-up of 14.4 months per patients. Among 336 patients, 175 had mitral, 68 aortic, 82 multiple, 10 tricuspid, and one pulmonary valve replacement. The hospital mortality figures were 9 of 336[2.67%] in all, 5 of 175[2.85%] in isolated mitral, 1 of 68[1.47%] in isolated aortic and 3 of 82[3.65%] in multiple valve replacement. The causes of hospital mortality were myocardial failure in 5, sepsis in 2, bleeding in 1, cerebral embolism in l. There was no late valve related mortality. The actuarial survival rate at 4.5years was 99.4*0.1%. The complications occurred in 15 of 336[4.46%]; 7 of 175[4.0%] in isolated mitral, 4 of 68[5.88%] in isolated aortic, and 4 of 82[4.89%] in multiple valve replacement. The causes of complications were thromboembolism in 4, hemorrhage in 4, paravalvular leakage in 4, hepatitis in 2, and complete AV block in l. Actuarial probability of survival at 4.5 years was 95.0*0.1%. The low mortality and complications encourage us to applicate these valves to any patient including children and young women.