Top 10 Questions Answered About Chorionic Villus Sampling (CVS) Test
Published On - September 28, 2022
Taking a sample of cells from placental tissue is referred to as Chorionic villus sampling (CVS). An ultrasound scan is used as a constant guide during CVS. This is done to ensure that nothing touches or enters the amniotic sac, which is the baby’s protective sac and cushion. Both transcervical CVS and transabdominal CVS can be used for this kind of test.
Here are 10 important questions answered about the chorionic villus sampling (CVS) test during pregnancy.
- What is CVS?
Chorionic villi sampling (CVS) is a procedure where a sample of cells from the placenta is taken from the fetus at approximately 12 weeks gestation. These samples are then sent to a lab to determine if the baby has any genetic disorders.
- How does CVS work?
During pregnancy, the placenta grows and develops over time. At around 12 weeks gestation, the chorionic villi begin to develop and become visible. A small amount of blood is drawn from the umbilical cord and placed onto a slide. Once the blood is dried, the cells are examined under a microscope. If any abnormalities are detected, further testing may be done.
- Is CVS painful?
Yes, CVS is a minor surgical procedure. However, some women experience cramping and bleeding after the procedure. Most women, afterward, report feeling fine.
- Are there risks associated with CVS?
There are no known risks associated with CVS. However, there are risks associated with having a cesarean section. There is also a risk of miscarriage.
Although an entire CVS session may last up to 30 minutes, the test often lasts approximately 10 minutes. You will then be watched for up to an hour in case you experience any adverse effects, such as severe bleeding. Then you can rest at home. Making arrangements for transportation to home is a smart idea because you might not feel fit enough to drive back home yourself from chorion villus sampling testing centers in Kolkata.
- Can I have CVS performed earlier than 12 weeks?
No, CVS cannot be performed before 12 weeks gestation.
- Does CVS hurt the baby?
It is not known whether or not CVS hurts the baby.
- Will your insurance cover CVS?
If you are insured, your insurance company should pay for the procedure. You may want to check with them first.
- How are CVS samples taken?
A needle is introduced through your skin into your womb during transabdominal CVS and it is guided to the placenta by making use of the ultrasound scan image. The needle has a syringe attached, which is used to extract a little cell sample from the chorionic villi. The needle is taken out when the sample has been taken out.
- How reliable is Chorionic Villus Sampling?
How trustworthy are the outcomes? According to estimates, 99 out of 100 women who take the test at CVS will receive a conclusive result. But it is not always possible to obtain a definitive result, and it cannot test for every condition.
- Which irregularities can CVS identify?
Chromosome issues including Down syndrome and other genetic conditions like Tay-Sachs disease, cystic fibrosis and sickle cell anemia can be found with the aid of CVS. When it comes to chromosomal defect diagnosis, CVS is regarded as 98% accurate.
