Transabdominal chorionic villi sampling for first trimester fetal diagnosis. First 26 pregnancies followed to term.

A consecutive series of 26 women followed to term after first trimester transabdominal chorionic villi sampling is presented. The clinical application of transabdominal chorionic villi sampling (TA-CVS) seems to have certain advantages, especially from the patients' point of view, but also in regard to successful sampling and to the complication ratio. The results in this clinical trial revealed no cases of abortions, no signs of placental damage and no cases of vaginal bleeding or infections.