Doctor insights on:
Chorionic Villus Sampling
Yes and no: Chorionic villi sampling is a procedure where a small sample of cells from the placenta are removed, early in a pregnancy. A lab can determine if there are any extra or missing chromosomes, or large parts of a chromosome that are extra or missing. Other tests on chorionic villi can look for abnormalities in single genes, but no test can determine that a baby has no genetic abnormalities. Read more
I had an abortion when I was about 8 weeks pregnant. Just before the procedure I was asked if I would mind having another procedure performed on me called chorionic villi sampling (cvs). They said it was to train one of the doctors, who was being overseen
Can you tell me in karyotping a samplle from chorionic villi of amather was found to have xy sex chromosomes will this going l?
What?: Your question makes no sense to me. Please clarify. Read more
I cannot find a doctor who is willing to perform chorionic villi testing. Any ideas why not? What are risks?
Top caliber maternal: Fetal centers especially those with medical school affiliations should either perform chorionic villus sampling or be able to refer you to a center that does. There is a 1% risk of miscarriage & very minor risk of infection spotting pain or crampiing. Advantage over amniocentesis is that it can be performed earlier in pregnancy (10 -13 weeks after your last menstrual period). Read more
10-12 weeks: Chorionic villus sampling (cvs) obtains cells from the fetoplacenta for testing at 10-12 weeks of pregnancy, amniocentesis obtains fetal skin/urine cells at 16-18 weeks. Higher risks for miscarriage (2-3% for cvs, <0.5% or negligible for amnio) balance against the cvs advantage of testing before a women "shows, " preserving the privacy of pregnancy (testing). Read more
Genetic testing: Chorionic villous sampling represents one of the earliest available methods to accurately diagnose genetic abnormalities such as down's syndrome. While most, if not all, of these defects are not curable, it does give the patient the earliest opportunity to decide on whether to continue the pregnancy. Read more
MFMs: Maternal fetal medicine specialists usually perform cvs, although there are occasional doctors of other specialties who have been trained to do the procedure. Fellows, who are still in training, may perform the procedure under the supervision of the doctor who is teaching them. Read more
Placenta vs fluid: Cvs can usually be done earlier and involves obtaining placental tissue for chromosome analysis. This is done by needle biopsy either through the cervix or abdomen. Amniocentesis is obtaining amniotic fluid for testing also by needle aspiration. Both are done with ultrasound guidance, cvs slightly riskier with bleeding & cramping, both safe to do, both done by mfm docs. I hope that helps. Read moreSee 1 more doctor answer