Chorionic villus sampling (CVS) involves obtaining a sample of the placental tissue and is performed between 10 to 12 weeks of pregnancy.

Depending upon the position of the placenta, a CVS is performed either through the cervix (transcervical) or abdominally (transabdominal). The tissue is sent for chromosome analysis and results are generally available within seven to 10 days.

This test is more than 99 percent accurate in diagnosing chromosomal abnormalities. The risk of miscarriage with CVS is estimated to be 0.5 to 1 percent.

Physicians

Physicians offering this service include:

• Boyd, Brita K.
  • Obstetrics/Gynecology / Maternal-Fetal Medicine
• Ellestad, Sarah C.
  • Obstetrics/Gynecology / Maternal-Fetal Medicine
• Kuller, Jeffrey A.
  • Obstetrics/Gynecology / Maternal-Fetal Medicine

Locations

This service is available at:

• Duke OB-GYN Consultants
  2406 Blue Ridge Road, Suite 200, Raleigh, NC 27607
• Duke Perinatal Consultants of Cary
  600 New Waverly Place, Suite 305, Cary, NC 27518
• Duke Perinatal Durham / Fetal Diagnostic Center
  Pavilion East at Lakeview, 2608 Erwin Road, Suite 200, Durham, NC 27705