妊娠高血压综合征（妊高征）是危害母婴健康的常见疾患之一，其发病原因及机制尚不十分清楚，迄今国际上尚无统一命名与分类。近年国外有人提出早期发生型妊高征（EarlyOnsetPre－eclampsia）这一概念，认为这类妊高征经常伴有胎盘梗阻、胎儿生长迟缓，其预后不良。本文通过回 Pregnancy-induced hypertension (PIH) is one of the common diseases that endanger the health of mothers and infants. The etiology and mechanism of pregnancy-induced hypertension (HPE) are not yet clear. So far there is no uniform name and classification in the world. In recent years, some people abroad put forward the concept of early pregnancy-induced hypertension (EarlyOnsetPre-eclampsia), that this type of pregnancy-induced hypertension is often accompanied by placental obstruction, fetal growth retardation, the prognosis is poor. This article by back