What diseases or disorders can chorionic villus sampling (CVS) help identify, and how accurate is the test?
Chorionic villus sampling (CVS) can help identify such chromosomal problems as Down syndrome or other genetic diseases such as cystic fibrosis, Tay-Sachs disease, and sickle cell anemia. CVS is considered to be 98% accurate in diagnosing defects in chromosomes. It also can tell the sex of the fetus, so it can identify disorders that are linked to one sex, such as certain types of muscular dystrophy that happen most often in males. CVS doesn’t detect open neural tube defects like spina bifida.
THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.
This tool does not provide medical advice. See additional information.