0　引言　婴幼儿先心病的外科治疗具有特殊性和复杂性,尤其是伴有严重肺动脉高压和复杂先心病患儿[1].1992-04/1999-06,我们连续对454例7d～36mo先心病患儿进行手术治疗,其中最小体质量3kg,1岁以下130例,占28.6%,复杂畸形141例,占31%.手术死亡32例,死亡率7%.1　对象和方法1.1　 0 Introduction The surgical treatment of congenital heart disease in infants and young children is special and complex, especially in patients with severe pulmonary hypertension and complicated congenital heart disease [1] .1992-04 / 1999-06, we continued for 454 cases of 7d ~ 36mo Surgical treatment of children with heart disease, of which the minimum body weight of 3kg, 130 cases under the age of 1, accounting for 28.6%, complex deformity in 141 cases, accounting for 31% .32 cases of surgical death, the mortality rate of 7% .1 Subjects and methods 1.1