What is the commonest aneuploidy seen in neonates born with single umbilical aery?
Single umbilical aery: - It is seen in 5-10/1,000 bihs & its frequency increases in twin bihs - 30% of these infants are associated with more than one congenital abnormalities; among which Trisomy 18 is most commonest - Though it is associated with increased risk for occult renal anomaly, if no other anomalies are present, need for renal USG is controversial
Trisomy 18
Trisomy 13
Trisomy 21
Trisomy 15
Fetal circulation