One of the atrial septal defects was occluded 3 months after pulmonary valvuloplasty when atrial septal right to left shunt changed into left to right shunt.

• 结果11例患者10例经1次导管术得到根治，1例肺动脉瓣扩张后诱发右室流出道痉挛，延迟3个月后再行房间隔缺损关闭术成功；