Heparin Does Not Reduce Catheter Sepsis during Total Parenteral Nutrition

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Abstract
Although it is recognized that the addition of heparin to total parenteral nutrition solutions reduces subclavian vein thrombosis from percutaneous polyethylene catheters, it does not affect the low thrombosis rate associated with polyurethane catheters. It has been suggested that heparin also reduces catheter sepsis during total parenteral nutrition. We reviewed the sepsis rate in 86 patients randomized to receive iv nutrition with or without heparin through polyethylene, polyvinyl, and polyurethane catheters. Blood was drawn from febrile patients for culture; if positive, catheters were removed and the tips cultured. Catheters were considered infected if blood and catheter tips were positive, or if fever disappeared within 48 hr after catheter removal, even if cultures were negative. Catheter sepsis occurred in two patients in both groups. It appears that heparin does not reduce sepsis from percutaneous subclavian vein catheters. Although its use may be indicated to reduce thrombosis associated with polyethylene catheters, there is no indication for its use to reduce sepsis with either type of catheter.

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