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  • Title: Comparison of cuffed tunneled hemodialysis catheter survival.
    Author: Rocklin MA, Dwight CA, Callen LJ, Bispham BZ, Spiegel DM.
    Journal: Am J Kidney Dis; 2001 Mar; 37(3):557-63. PubMed ID: 11228180.
    Abstract:
    Despite efforts to have hemodialysis patients begin renal replacement therapy with a mature arteriovenous shunt, many patients begin dialysis with a cuffed tunneled catheter as their access. An increasing number of differently designed tunneled hemodialysis catheters have become available in the last decade. The primary aim of this study is to compare catheter survival for Hickman (Bard, Salt Lake City, UT) and Opti-flow (Bard) catheters. The 16-month experience with 182 catheters, totaling 13,861 catheter-days, is reported. The probability of Hickman catheter failure at 30, 60, and 90 days was 29%, 49%, and 67%. The probability of Opti-flow catheter failure was significantly less at 10%, 24%, and 38% for the same times, respectively (P: < 0.05 for all time points). The difference in catheter failure rates was caused by a greater malfunction rate of Hickman catheters; the two catheters had similar infection rates. We conclude that survival of Opti-flow catheters was significantly better than that of Hickman catheters from 30 to 90 days, which is a clinically relevant period when patients are waiting for maturation of a permanent access or replacement of a failed access. Since the conclusion of our study, we documented 10 episodes of Opti-flow catheter malfunction within 4 months secondary to hairline fracture of the arterial hub. The Opti-flow catheter was recalled and is now available with retooled hubs.
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