作者对因超声波检查和羊膜穿刺发现的妊娠中期异常而流产的胎儿进行了前瞻性研究。本文就研究结果总结如下。 1982～1987年的5年多时间里,地区遗传学中心收到在妊娠中期因胎儿异常而流产的250例胎儿,其中115例的诊断是根据羊膜穿刺标本作出,另外133例较严重的异常由超声波检查发现,1例因母亲苯丙酮尿症流产,另1例因携带Huntington舞蹈病基因处于高 The authors of a prospective study of fetuses miscarried by mid-second trimester abnormalities detected by ultrasonography and amniocentesis. This article summarizes the research results as follows. Over five years from 1982 to 1987, the Genetics Center received 250 fetuses who had aborted due to a fetal abnormality during the second trimester of pregnancy. Among them, 115 cases were diagnosed on the basis of amniocentesis and the other 133 more severe Ultrasound examination found that 1 case of mother’s phenylketonuria abortion, another case of Huntington cholera carrying genes in high