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Umbilical catheters

Alternative Names

UAC; UVC

Information

A catheter is a long, soft, hollow tube. An umbilical artery catheter (UAC) allows blood to be taken from an infant at different times, without repeated needle sticks. It can also be used to continuously monitor a baby’s blood pressure.

An umbilical artery catheter is most often used if:

  • The baby needs breathing help.
  • The baby needs blood gases and blood pressure monitored.
  • The baby needs strong medicines for blood pressure.

An umbilical venous catheter (UVC) allows fluids and medicines to be given without frequently replacing an intravenous (IV) line.

An umbilical venous catheter may be used if:

  • The baby is very premature.
  • The baby has bowel problems that prevent feeding.
  • The baby needs very strong medicines.
  • The baby needs exchange transfusion.

HOW ARE UMBILICAL CATHETERS PLACED?

There are normally two umbilical arteries and one umbilical vein in the umbilical cord. After the umbilical cord is cut off, the health care provider can find these blood vessels. The catheters are placed into the blood vessel, and an x-ray is taken to determine the final position. Once the catheters are in the right position, they are held in place with silk thread. Sometimes, the catheters are taped to the baby's belly area.

WHAT ARE THE RISKS OF UMBILICAL CATHETERS?

Complications include:

  • Interruption of the blood flow to an organ (intestines, kidney, liver) or limb (leg or rear end)
  • Blood clot along the catheter
  • Infection

Blood flow and blood clot problems can be life-threatening and require removal of the UAC. The NICU nurses carefully monitor your baby for these possible problems.

References

Santillanes G. Claudius I. Pediatric vascular access and blood sampling techniques. In: Roberts JR, Hedges JR, eds. Clinical Procedures in Emergency Medicine. 6th ed. Philadelphia, PA: Saunders Elsevier; 2013:chap 19.

Updated: 12/4/2013

Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.


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