方法选择20例择期行心脏机械瓣膜置换术的患者。
Methods To select 20 cases of patients undergoing mechanical heart valve replacement.
方法机械瓣膜置换术33例，其他多为先天性心脏病纠治术。
Methods- 33 patients were undergone mechanical valve replacement, the others were performed routine congenital heart disease operation.
方法机械瓣膜置换术33例，其他多为先天性心脏病纠治术。
Methods- 33 patients were undergone mechanical valve replacement, the others were performed routine congenital heart disease operation.
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