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本文报告了我实验室于1981年8月～12月及1984年12月～1985年10月,两个阶段内连续对626例新生儿,进行脐带血染色体普查。用 G 显带核型分析,发现4例染色体异常,发病率为6.4%。其中2例为数目异常——21三体。另2例为结构异常:分别为罗伯逊易位和9号染色体臂间倒位。一般的产前咨询与孕妇保健不能完全避免这样的婴儿出世,而脐带血染色体检查,可早期查出染色体异常儿,及时给予医疗指导,对提高人口素质大有好处。
This article reports my laboratory in August 1981 ~ December 1981 and December 1984 ~ October 1985, two consecutive stages of 626 newborns, umbilical cord blood chromosomes. G-banding karyotype analysis found that 4 cases of chromosomal abnormalities, the incidence was 6.4%. Two of them were abnormal in number - trisomy 21. The other 2 cases were structural abnormalities: Robertsonian translocation and 9th chromosome inversion. General prenatal counseling and maternal health can not completely avoid such a baby was born, and umbilical cord blood chromosome examination, early detection of chromosomal abnormalities, timely medical guidance, to improve the quality of the population is good.