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Dislocation of a double-lumen tunneled hemodialysis catheter causing dysfunction and bleeding
1Department of Nephrology and Dialysis, Academic Teaching Hospital Feldkirch, Feldkirch, Austria.
Blood Purification
|January 15, 2009
Summary
Dislocation of tunneled hemodialysis catheters is rare but can cause severe hemorrhage. A short tunnel may prevent this complication in patients with excess adipose tissue.
Area of Science:
- Nephrology
- Vascular Access
- Medical Device Complications
Background:
- Tunneled hemodialysis catheters are essential for chronic kidney disease patients.
- Catheter dislocation is an uncommon but serious complication.
Observation:
- A split catheter was found dislocated with arterial limb outside and venous limb inside the jugular vein.
- This inverse positioning led to severe hemorrhage along the catheter tunnel.
Findings:
- Catheter tip malpositioning can result in significant bleeding.
- Adipose tissue may influence catheter tunnel integrity and migration.
Implications:
- Recommendations include using a shorter subcutaneous tunnel for tunneled catheters in obese patients.
- This may reduce the risk of dislocation and associated hemorrhage.
- Ensuring correct catheter placement is critical for patient safety.
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