[Ventricular Septal Defect Patch Closure].

Ventricular septal defect is the most frequent congenital heart disease and it exists as an isolated form or combines with other complex cardiovascular malformations. Soto's classification is based on the location and extension of the defect and it is most useful and comprehensive for a surgeon. Ventricular septal defect closure is one of the basic surgical procedures that a congenital heart surgeon must master first. In order to perform a perfect patch closure of the defect without making complications such as residual interventricular shunt, tricuspid valve regurgitation, or atrioventricular block, surgeon must acquire, ① preoperative and intraoperative accurate assessment and understanding of the anatomical features of the defect, ② effective intraoperative exposure of the defect, and ③ safe and assured stitch and ligation.