Why Chorionic villus sampling (CVS) may be preferred over amniocentesis for karyotyping because?

Chorionic villus sampling (CVS) may be preferred over amniocentesis for karyotyping primarily because it can be performed earlier in pregnancy, typically between 10 and 13 weeks gestation, allowing for earlier diagnosis of chromosomal abnormalities. Additionally, CVS involves retrieving tissue from the placenta, which can provide results more rapidly than amniocentesis, which is usually performed later in the second trimester. This earlier intervention can facilitate timely decision-making for expectant parents. However, both procedures carry risks and should be discussed thoroughly with a healthcare provider.