先天性代谢异常及染色体异常的胎儿检查,已在欧美及日本广泛展开,1977～1979年度,厚生省关于出生前诊断的预后调查研究班追踪的结果,胎儿检查的8.8%为染色体异常症,9.6%为先天性代谢异常症,2.1%伴隐性遗传性疾病,0.3%为其他。行胎儿诊断的先天性代谢异常的疾病,美国NIH的报告如表1。日本对81年度厚生省心身障碍调查研究班整理的疾病(见表2)做胎儿检查。有报告说染色体 Congenital metabolic abnormalities and chromosomal abnormalities in fetal examination, has been widely launched in Europe and the United States, Japan from 1977 to 1979, the Ministry of Health on the prenatal diagnosis of the prognosis of the research tracked the results of 8.8% of fetal examination for chromosomal abnormalities, 9.6% Congenital metabolic abnormalities, 2.1% with recessive genetic disease, 0.3% for others. Line fetal diagnosis of congenital metabolic disorders, the United States NIH report in Table 1. Japan conducted a fetal examination on the diseases that the 81-year Psychosomatic Investigation Team of the Ministry of Health, Welfare (see Table 2) did. There are reports of chromosomes