目的分析经导管膜周部室间隔缺损（PMVSD）封堵术后传导阻滞发生及转归情况。
Objective To analyze conduction the occurrence and prognosis of blockade after transcatheter closure of perimembranous ventricular septal defect(PMVSD).
目的：评价膜周部室间隔缺损(VSD)经导管封堵治疗的临床效果。
Objective: To evaluate the effect of transcatheter interventional occlusion of peri-membranous ventricular septal defect (VSD).
结论：应用自制双盘状室间隔封堵器经导管闭合小儿膜周部室间隔缺损是一种可行、安全、有效的方法，近期疗效良好。
Conclusion: Transcatheter closure of perimembranous ventricular septal defects with self-made nitinol occluder in children is a safe and effective method.
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