PRESENCE OF A SINGLE UMBILICAL ARTERIES(Single Umbilical Artery - SUA)
Normally the umbilical cord (umbilical cord, funis) has 3 vessels. Two of them that umbilical artery is the artery. It is one that collects the umbikal and vessels. The first stage consists in the fact that the fetus has a right and left 2 umbilical vein but right umbilical vein disappears and only left umbilical vein.
Normally, arteries in the human body (arteries) and clean the blood that carry oxygen-rich blood from food, collect blood vessels (veins) that carry blood contaminated blood containing carbon dioxide and waste materials. This is contrary umbilical cord in the fetus. Umbilical artery carries blood to the placenta to the fetus dirty, clean umbilical vein carries blood from the placenta to the fetus. There is a also a so-called single umbilical artery, umbilical artery and umbilical cord blood in case.
Single umbilical artery in 1% of all births in the singular presence is found in 5% of twins. It is not known exactly why it occurs.
Which cases are more common?
- In the presence of maternal diabetes and preeclampsia
- Olgihodramnios in the presence polhidramnios
- Chromosomal abnormalities that pregnancy
- Twin pregnancies
- More common in female babies
- More common in twin pregnancies
- Were advanced maternal age
- Multiparity
Diagnosis:
Gone in 2 instead of 3 recognizable by ultrasound cord vessels normally seen and monitoring of large arteries. Color Doppler ultrasound to be seen to be monitored by a single artery and bladder of the fetus is only one side of the artery.
What is the importance of having a single umbilical artery?
Single umbilical artery of the fetus has been reported that 20-30% accompanied by a number of other anomalies. These heart defects, abnormalities of the digestive system, kidney and brain abnormalities such as various anomalies. Single umbilical artery most watched chromosomal abnormalities associated with trisomy is 18. before or after birth due to this anomaly is observed mortality rate of 10-20%. growth retardation observed in 15-20% of fetuses during pregnancy.
Single umbilical artery and lower risk of premature birth has increased.
Almost half of single umbilical artery of the fetus which is born completely healthy and without any anomalies.
follow-up of pregnancy:
When the single umbilical artery diagnosed during pregnancy should investigate whether the absolute accompanied by other anomalies. Fetal echocardiography should be performed. If accompanied by other abnormalities can be detected by amniocentesis for fetal chromosomal abnormalities and chromosomal analysis research. Although there are other low risk of chromosomal abnormalities not detected anomalies with the family discussed the risks of amniocentesis to be decided. Fetal growth retardation should be monitored by ultrasound measurements in terms of the formation. After the birth, "kidney" to do ultrasound to investigate the anomaly is recommended.
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