Chorionic villus sampling (CVS) Ostrava, Olomouc - Invasive testing Ostrava, Olomouc - Ishraq Dhaifalah - Centre of Fetal Medicine and Human Genetics Ostrava, Olomouc Ishraq Dhaifalah - Centre of Fetal Medicine and Human Genetics Ostrava, Olomouc


Chorionic villus sampling (CVS)

Odběr choriových klkůChorionic villi are fetal membranes which develop into placenta. The sampling is performed from the 11th week of gestation as an outpatient procedure under the guidance of an ultrasound. After a local anesthetic is administered a thin needle is passed through the abdominal wall and through the wall of the uterus into the placental tissue and a small amount is aspirated into the syringe. The sample is then sent for cytogenetic and molecular genetic investigation. We determine the chromosomal status of the fetus and in indicated cases can also perform a specific test for suspected genetic syndromes. Chorionic villus sampling carries a 0,5-1% risk of complications, which can result in a miscarriage. The decision to undertake the test has to be reached after careful considerations of all the factors involved by the parents and by the medical personnel.

The results are available according to the type of investigation that is requested. The exclusion of the commonest chromosomal defects (trisomy 21, 18 a 13) is performed by a QF PCR molecular method and the results are issued within 48 hours form the procedure. We inform you of the results by telephone. The investigation of the complete chromosomal set is performed by a cytogenetic method and takes 2-3 weeks. The result is then sent to you and to your gynaecologist by a letter. Should a gene test be requested (DNA testing), the length of the investigation depends on the particular gene. All the testing should be completed by 24th week of gestation.

FETMED s.r.o.

FacebookOSTRAVA - Dr. Martínka 7, 700 30 Ostrava – Hrabůvka, Czech Republic
tel.: +420 773 190 249,

OLOMOUC - Horní Lán 1200/13, 779 00 Olomouc, Czech Republic
tel.: +420 605 825 780,

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