Chorionic villus sampling - series

• Normal anatomy
• Procedure, part 1
• Procedure, part 2 - transcervical
• Procedure, part 2 - transabdominal
• Results

Procedure, part 2 - transcervical:

If your surgeon uses a transcervical procedure, he opens your vagina with a speculum and eases a thin catheter through it and your cervix.

Your surgeon then moves the catheter to the chorionic villi with the guidance of an ultrasound. He checks the fetus' position on the ultrasound screen so he can maneuver the catheter within the uterus without harming the fetus.

• Reviewed last on: 5/2/2008
• Linda Vorvick, MD, Seattle Site Coordinator, Lecturer Maternal & Child Health, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine; and Susan Storck, MD, FACOG, Clinical Teaching Faculty, Department of Obstetrics and Gynecology, University of Washington School of Medicine; Chief, Eastside Department of Obstetrics and Gynecology, Group Health Cooperative of Puget Sound, Redmond, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.