During which weeks of gestation is chorionic villus sampling typically performed?

Chorionic villus sampling (CVS) is a prenatal diagnostic procedure used to obtain a sample of chorionic villi from the placenta for genetic testing. This procedure is typically performed between the 10th and 12th weeks of gestation, which allows for early detection of genetic abnormalities. Conducting CVS in this timeframe is advantageous because it provides expectant parents with earlier results compared to other diagnostic methods, such as amniocentesis, which is usually performed later in pregnancy.

Early testing can facilitate timely decision-making regarding further management or interventions if any genetic conditions are detected. Performing CVS outside this designated window may pose a higher risk of complications or may not yield optimal results. Therefore, the correct timing of 10 to 12 weeks is critical for both the effectiveness of the testing and the safety of the procedure.