Chorion villus sampling--transcervical or transabdominal?

Chorion villus sampling was performed transcervically on 84 patients and transabdominally on 126 patients. Two of 4 (5%) spontaneous abortions in the transcervical group were complicated by uterine infection. Five (4%) spontaneous abortions in the transabdominal group were uncomplicated by infection. The results support the contention that the transabdominal method may be safer and that the procedure related fetal loss rate is similar to that following amniocentesis.