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Transabdominal chorionic villus sampling in the second trimester
C K Hogdall1, T A Doran, J Shime
1Department of Obstetrics and Gynecology, Toronto General Hospital, Ontario, Canada.
American Journal of Obstetrics and Gynecology
|February 1, 1988
Abstract:
Transabdominal chorionic villus sampling under ultrasound guidance was carried out in 19 patients in the second trimester. We found that needle size combination 17/19 provided the best results with consistently adequate samples of tissue. Transabdominal chorionic villus sampling is a potentially useful technique for providing relatively rapid prenatal genetic diagnosis in patients at high risk in the second trimester.