Cytogenetic investigation in 300 couples with recurrent fetal wastage.

A series of 300 couples with reproductive failure, i.e. 100 couples with a history of 2-4 spontaneous abortions (lot 1) and 200 couples with abortions and one or several dead plurimalformed children (lot 2) were cytogenetically investigated. The incidence of major chromosomal aberrations was 7% (lot 1) and 5.5% (lot 2) and minor aberrations 13% (lot 1) and 5% (lot 2). The mean percentage of chromosmal aberrations in the 300 couples was 6.03%, a figure which is close to the one reported in the literature of the recent years, i.e.6.1%.