[Level of alpha-fetoprotein in maternal serum before and after chorionic villus sampling].

To evaluate incidence and severity of feto-maternal transfusion post-chorionic villus sampling (CVS), maternal serum AFP (MSAFP) were determined for 88 patients before and 15 minutes after CVS. To know whether MSAFP elevation could have clinical implications, a questionnaire was sent to the patients researching if they have had haemorrhages, temperature, spontaneous abortion or premature delivery in the period post CVS. Results of the present study indicate that 44.7% of patients present MSAFP significative elevation (greater than or equal to 8 micrograms/l), a variable elevation (from 8 to 423 micrograms/l). There is no relation between MSAFP elevation and unfavourable events post CVS.