CVS (chorionic villus sampling)
Chorionic villus sampling (CVS) means sampling of chorionic villi (placental tissue), which is recommended in pregnancies at high risk of fetal chromosomal defects. Its aim is to exclude or confirm any fetal genetic anomaly. CVS can be performed from 11-14 weeks, thus earlier than amniocentesis with the advantage of an early exclusion or confirmation of any fetal genetic anomaly.
First results regarding the presence of the most frequent chromosomal defects are available within 2 working days after procedure with the complete results available usually within 2 weeks. You will be informed of the initial results by a phone call from us or the clinical geneticist. Complete results should be passed to you at counselling so are sent to a clinical geneticist, who will also be able explain them fully to you.