Cordocentesis treatment, also known as percutaneous umbilical cord blood sampling (PUBS) or umbilical vein sampling is a form of prenatal diagnostic that examines blood from the foetal umbilical cord to detect chromosomal defects or foetal abnormalities if any. A highly specialised form of diagnosis, Cordocentesis in foetuses is usually performed within 18-24 weeks of pregnancy and since it's a normal blood collection procedure, so no anaesthesia is required to be given. All your gynaecologist does is perform an ultrasound to detect the exact position of the foetus post which the blood sample is collected from that particular segment of the umbilical cord that is closest to the placenta. The entire procedure that is carried out in a hospital setting or a clinic, takes not more than 10-15 minutes of time, a post which patients can go back home. Apart from detecting chromosomal defects, this form of treatment is beneficial in administering blood or medication to the baby through the mother's umbilical cord and is also used to identify the following conditions:
Foetal infections: Many a time it happens that the mother is suffering from some kind of serious infection like rubella or toxoplasmosis. In such cases, a Cordocentesis in foetus helps diagnose whether or not the infection has passed on to the baby.
Intrauterine Growth Restriction: In some cases due to certain problems, a foetus does not grow properly in the mother's womb. In such cases, a Cordocentesis test helps your gynaecologist understand the primary reason that's restricting the baby's normal growth.
Rh factor: Rh-positive blood is common amongst the majority of pregnant women. But if you're Rh-negative a Cordocentesis can help you gain an insight into your baby's Rh factor.