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Date of last update: 10/14/2017.

Forum Name: Obstetrics

Question: Umbilical cord with 1artery & 1 vein

 PJC - Thu May 07, 2009 1:39 pm

What is a fetus's prognosis if the umbilical cord has 1 artery and 1 vein instead of the usual 2 arteries and 1 vein? The left ventricle is also very small.
 Dr. Chan Lowe - Mon May 11, 2009 12:08 am

User avatar Hi PJC,

Often, this is not a significant issue. Your obstetrician will want to follow your baby closely during the pregnancy to monitor for any issues that may arise and for proper growth. A single artery is also sometimes associated with renal problems so they will probably take a good look at your baby's kidneys on ultrasound to see if there are any anomalies. They'll also take a good look at the heart as well.

Don't let this worry you much since most of the time, a single artery results in a perfectly healthy baby.

Best wishes.

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