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.
Updated by: A.D.A.M. Health Solutions, Ebix Inc., Editorial Team: David Zieve, MD, MHA, and David R. Eltz. Previously reviewed by Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington. Susan Storck, MD, FACOG, Chief, Eastside Department of Obstetrics and Gynecology, Group Health Cooperative of Puget Sound, Bellevue, Washington; Clinical Teaching Faculty, Department of Obstetrics and Gynecology, University of Washington School of Medicine (5/31/2012)
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