室间隔缺损是先天性心脏病中最常见的疾病之一(约占32%),而膜周部是其最常见类型,占70%~80%。膜周部室间隔缺损往往由于紧邻三尖瓣、二尖瓣和主动脉瓣,同时房室结区位于室间隔膜部后上方并在膜周部后下缘分出左、右束支,操作过程中出现的并发症相对较多〔1〕,操作时间长、过程 Ventricular septal defect is one of the most common diseases of congenital heart disease (about 32%), and the peritoneum is the most common type, accounting for 70% to 80%. Perimembranous ventricular septal defect is often due to the immediate vicinity of the tricuspid valve, mitral valve and aortic valve, while the atrioventricular node zone is located above the posterior compartment of the diaphragm and in the lower edge of the membrane after the left and right bundle branches, the operation process There are relatively many complications [1], the operation time is long, the process