The aim of this study was to determine the incidence of complications of catheterization for total parenteral nutrition (TPN) in patients of the Parenteral Nutrition Unit of Groote Schuur Hospital. During the 2-year study period, 218 central venous catheters were inserted in 170 patients. The preferred technique of percutaneous infraclavicular subclavian venepuncture with subsequent subcutaneous tunnelling using a silicone elastomere catheter is described. The incidence of major complications of catheter insertion was 4,5% (pneumothorax 4, subclavian artery puncture 6). There was a 2,7% incidence of catheter malpositioning (requiring repositioning) at initial insertion. The mean duration of catheterization was 12,9 days. During this period there was a 6,9% incidence of mechanical complications (occluded lines 13, extravascular infusion 2). Catheter-related sepsis was suspected in 37 cases (16,9%) and all these catheters were removed, but in only 7 cases (3,2%) was the sepsis proved to be catheter-related. There was no correlation between the duration of catheterization and the development of catheter-related sepsis. Furthermore, there was no increase in the incidence of catheter sepsis in patients with sepsis before catheterization.
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