心内膜垫缺损,指心内膜垫等组织出现不同程度和范围的发育不良,累及下部房间隔、流出道部分室间隔和房室瓣等组织结构,导致心内的复合畸形病变。本病尤其是完全型心内膜垫缺损是一种预后极差的心脏病[1],产前超声诊断胎儿心内膜垫缺损降低围生儿死亡率、优生优育具有重要的临床 Endocardial pad defects, refers to the endocardial cushion and other organizations appear to varying degrees and extent of dysplasia, involving the lower atrial septum, part of the outflow tract septal and atrioventricular valve and other organizational structures, resulting in intracardiac deformity lesions. The disease, especially the complete endocardial cushion defect is a poor prognosis of heart disease [1], prenatal diagnosis of fetal fetal endocardial pad defects reduce perinatal mortality, prenatal and postnatal care has an important clinical