Umbilical Vein Cannulation




Indications



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  • • Emergency vascular access for fluid and medications.


    • Administration of high glucose concentration and total parenteral nutrition.


    • Central venous pressure monitoring.


    • Exchange transfusion.





Contraindications



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Absolute





  • • Omphalitis.


    • Abdominal wall defects (eg, omphalocele, gastroschisis).


    • Necrotizing enterocolitis.


    • Umbilical surgery.


    • Peritonitis.





Equipment



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  • • Sterile catheter.




    • • Use 3.5F catheter for patients weighing < 1500 g.


      • Use 5F catheter for patients weighing > 1500 g.


    • Sterile umbilical catheter tray includes the following:




    • • Sterile drapes.


      • Povidone-iodine swabs.


      • Umbilical tie.


      • Toothed iris forceps.


      • 2 curved non-toothed hemostats.


      • Suture scissors.


      • Small needle holder.


      • 3-0 silk suture on small curved needle.


      • 3-way stopcock with Luer-Lok.


      • 3-mL and 1-mL syringes with needles.


      • 2 × 2 gauze.


      • 4 × 4 gauze.


      • Saline solution with heparin 1 unit/mL.





Risks



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  • • Although serious complications have been reported from venous catheterization, very few are seen in practice if adequate precautions are observed.


    • The risk of infection is minimized by placing the catheter under sterile conditions and using a sterile technique for blood sampling from the catheter.


    • Catheters should be removed after 7 days of use to further decrease the chance of infection.


    • Hemorrhage may occur if the catheter inadvertently becomes disconnected or dislodged; however, this is avoided by maintaining exposure of the umbilical site at all times in an isolette or radiant warmer, together with constant nursing supervision.


    • Embolization and thrombosis can occur.





Pearls and Tips



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  • • Position the catheter tip away from the origin of hepatic vessels, portal vein, and foramen ovale; the tip should lie in the inferior vena cava just below its junction with the right atrium.


    Never force the catheter past an obstruction.


    • Once secured, never advance nonsterile portions of the catheter into the vessel. If the catheter needs to be advanced, it should be replaced.


    • Avoid hypertonic infusions when catheter tip is not in the inferior vena cava.


    • Do not leave the catheter open to the atmosphere due to the danger of air embolus.


    • Always confirm catheter position on radiograph before use. The only exception is when an umbilical venous catheter is inserted for resuscitation in the delivery room; in this case a low-lying catheter should be used.


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Jan 4, 2019 | Posted by in PEDIATRICS | Comments Off on Umbilical Vein Cannulation

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