In the conventional group, 1 patient died because of the pulmonary hypertension crisis just after the operation, and 1 patient died because of the right heart failure 7 months after the operation.

• 术后常规组有1例因肺动脉高压危象死亡，另1例患者术后7月因右心衰竭死亡。 活瓣组肺动脉高压危象、右心衰竭发生率少于常规组，差异有统计学意义(尸<0.；05)。