CVSnäytteenotto

CVSnäytteenotto, also known as chorionic villus sampling, is a prenatal diagnostic test that can detect certain birth defects and genetic abnormalities. It is typically performed between 10 and 13 weeks of pregnancy. The procedure involves obtaining a small sample of placental tissue, called chorionic villi, from the uterus. This sample can then be analyzed for chromosomal abnormalities like Down syndrome and cystic fibrosis, as well as certain other genetic disorders.

There are two main methods for CVSnäytteenotto: transcervical and transabdominal. In the transcervical approach, a thin catheter is inserted through the cervix to collect the sample. For the transabdominal approach, a needle is inserted through the abdominal wall into the uterus to obtain the tissue. Both procedures are usually performed under ultrasound guidance to ensure accuracy and minimize risk.

CVSnäytteenotto carries a small risk of complications, including miscarriage. The risk is generally considered to be between 1 in 300 and 1 in 500. It is important for expectant parents to discuss the risks and benefits of CVSnäytteenotto with their healthcare provider to determine if it is the right choice for them. The results of the test are usually available within one to two weeks. This test is distinct from amniocentesis, which is another prenatal diagnostic test that samples amniotic fluid.