Biopsy of chorionic villy

Biopsy of chorionic villus is a prenatal test that detects chromosomal abnormalities, such as Down’s syndrome, as well as a range of other genetic disorders. The doctor takes a small fingernail cell on the placenta called the chorionic villus and sends them to the laboratory for further genetic analysis. The biopsy of the chorion villus is usually done between the 10th and the 13th week of pregnancy and the entire procedure lasts 30-45 minutes.

INDICATIONS WHY IT IS DONE?

Biopsies of chorionic villus are done if:

• the result of the prenatal test is positive (positive double test).

• In the previous pregnancy, the fetus had a genetic (chromosomal) disorder.

• You are older than 35 years.

• You or a family member have some hereditary diseases (Daun’s syndrome, Patau, Edwards, etc.).

HOW IT IS PERFORMED?

• The procedure is performed in a lying position. At the beginning of the procedure, the doctor uses ultrasound in order to determine the exact position of the fetus in the uterus (the doctor uses a proton-small plastic device, which, with the help of ultrasound waves, gives a fetus image of his fetus. the sample can be taken through the cervix (transcervical approach) or through the stomach (transabdominal approach).

• Transabdominal approach (“through the stomach”)

Your doctor will cleanse your stomach with disinfectant. Using ultrasound, he will put a thin hollow needle through the abdominal wall to the womb. When the needle enters the womb, the doctor will draw a sample of chorionic spores into the syringe and then pull the needle out of the abdomen.

• Transcervical approach (“through the cervix”)

The doctor will cleanse the vagina and cervix with a disinfectant. After that, the speculum will open the vagina and insert a thin, hollow needle through the cervix. When the needle reaches the placenta, it will gently take a small part of the tissue of the Chorionic villus.

POTENTIAL RISKS

The following complications can rarely occur: abortion, Rh sensitization, or infection.

PREPARATION

• If the doctor requests, it will be necessary for your bladder to be full for the procedure (one hour and a half before the examination, you should drink 3-4 glasses of water within half an hour and then do not wet).

• It is best to come to the procedure accompanied by your partner, family member or friend to give you emotional support and facilitate your return home.

AFTER THE PROCEDURE

• The doctor will continue to monitor the fetal heart rate for some time. Upon completion of the procedure, you may have less vaginal bleeding. A few days after the chorionic biopsy, the doctor will schedule a control ultrasound examination. a tissue sample is sent to the laboratory for further analysis. You will wait for the results for several days to a few weeks, depending on the complexity of the analysis that is needed.

• Contact your doctor if you notice: fluid leaks from the vagina, excessive bleeding, fever or cramps (contractions) of the uterus.

• After the procedure, you need to stand still. It is recommended that a day or two after avoiding hard work, training or sexual activity.