Chorionic villus sampling (CVS), a test for birth defects, carries the same risk as the more commonly used amniocentesis, a new study has shown. Doctors previously thought its risk to be greater.
Women can undergo CVS about six weeks earlier than amniocentesis, at 10 to 12 weeks gestation, so these findings, if confirmed, will be good news for those wanting early detection.
Researchers speculate that as doctors have gotten better at CVS, the chance of miscarriage has decreased. Both procedures, however, still carry some risk. Discuss the pros and cons with your health-care professional.