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造成流产的原因很多。孕卵异常是早期流产的主要原因。近年来,应用染色体技术对流产排出物进行检查发现约22～60%之标本中有染色体异常。数目异常有三体性、单体性及多倍体;结构异常有易位、倒位、缺损和断裂等。众所周知,造成胚胎染色体异常的因素可以是配子或合子在形成、发育的过程中,由于某些因素导致染色体异常;而如果夫妇双方之一为染色体异常携带者,同样可导致合子染色体异常。本文对16对有习惯性流产史夫妇进行细胞遗传学检查,发现两对夫妇之女方是平衡易位携带者。报道以下。
Cause abortion for many reasons. Abnormal pregnancy egg is the main reason for early abortion. In recent years, the application of chromosome technology to check the abortion discharges found that about 22 ~ 60% of the specimens have chromosomal abnormalities. The number of abnormal trisomy, monosomy and polyploidy; structural abnormalities have translocation, inversion, defects and rupture. It is well-known that the embryo chromosomal abnormalities caused by the gamete or zygote in the formation and development process, due to some factors lead to chromosomal abnormalities; and if one of the couple is chromosomal abnormalities, can also lead to zygotic chromosomal abnormalities. In this paper, 16 pairs of couples with habitual abortion history of cytogenetic examination found that the two couples of women are balanced translocation carriers. Reported below.