Objective To determine the surgical point and technique of artificial mechanical valve replacement in children with heartvalvediseases.
目的：探讨儿童心脏瓣膜病的人工机械瓣膜置换手术要点及方法。
2
Objective to summarize the surgical treatment results of 180 cases of serious heartvalvediseases and investigate the treatment to improve the early-term survival.
目的总结180例重症心脏瓣膜病围术期处理的经验，探讨提高重症心脏瓣膜病早期生存率的措施。
3
Objective To explore the treatment of severe valveheartdiseases.