The detection rate of verity types of congenital heart diseases in this sample population was 5.7% (13 cases) ,the major problem was the complex heart malformation.

• 超声诊断疑有先天性心脏畸形胎儿的病理检查或生后检 查显示，本组人群先天性心脏病检出率为13例(5.；7%25)，以复杂畸形为多数。