我院儿科咨询门诊1981～1983年对先天性智力低下(下称智低)440例患儿做了染色体分析,报告如下。对象与方法本组病例为14岁以下的智低病儿,均除外生前与生后乏氧、感染、损伤等继发性智低。据临床表现,除管低外并1～2种以上的先天畸形,肌张力障碍,或母有自然流产史者进行了染色体检查,外周血淋巴细胞培 My courtyard Pediatric Consultation Clinics 1981 ~ 1983 on congenital mental retardation (hereinafter referred to as intellectual low) 440 cases of children made a chromosomal analysis, the report is as follows. Subjects and methods of this group of patients under the age of 14 Chi children, both before and after birth, hypoxia, infection, injury and other secondary intellectual low. According to clinical manifestations, in addition to the low outside and more than 1 to 2 kinds of congenital malformations, dystonia, or mother spontaneous abortion history of chromosome examination, peripheral blood lymphocyte culture