婴幼儿巨大室间隔缺损 (ＶＳＤ)较早出现肺动脉高压、充血性心力衰竭、反复肺部感染等严重并发症 ,甚至死亡 ,内科治疗常难以奏效 ,而手术治疗是挽救患儿生命的唯一方法 ,但是体重１０ｋｇ以下的婴幼儿外科治疗的死亡率较高［１］。我院１９９７年２月～２０００年１２月共对５ Infants and young children with huge ventricular septal defect (VSD) appeared earlier pulmonary hypertension, congestive heart failure, recurrent lung infections and other serious complications, and even death, medical treatment often difficult to work, and surgical treatment is the only way to save children’s lives, However, infants and young children weighing 10 kg or less have higher mortality rates [1]. Our hospital from February 1997 to December 2000 a total of 5