Self-centering split-tip catheter versus conventional split-tip catheter in prevalent hemodialysis patients

PurposeThis study compared the patency of a split-tip self-centering catheter with a predesigned curve (CentrosFLO; Merit, Salt Lake City, Utah) and a standard split-tip catheter with straight distal limbs (Medcomp, Harleysville, Pennsylvania) catheter in patients requiring exchange of a dysfunctional tunneled dialysis catheter (TDC).Materials and methodsA single-center retrospective chart review was performed between January 2013 and July 2014. Patients had an existing dysfunctional TDC that was exchanged over a wire using the same access site for either a split-tip self-centering catheter with a predesigned curve or a standard split-tip catheter with straight distal limbs catheter. The primary endpoint was catheter patency analyzed at 1, 3, and 6 months after initial exchange.ResultsA total of 73 patients met inclusion criteria (46 in the self-centering catheter group and 27 in the standard split-tipped group). Mean durations of the exchanged catheters were similar between groups. The mean 1-, 3-, and 6...