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  • Title: A prospective, randomized evaluation of the effect of silver impregnated subcutaneous cuffs for preventing tunneled chronic venous access catheter infections in cancer patients.
    Author: Groeger JS, Lucas AB, Coit D, LaQuaglia M, Brown AE, Turnbull A, Exelby P.
    Journal: Ann Surg; 1993 Aug; 218(2):206-10. PubMed ID: 8343002.
    Abstract:
    OBJECTIVE: This study was performed to evaluate the effect of a silver-impregnated cuff on the incidence of catheter-related bacteremia/fungemia or tunnel tract infection in cancer patients with chronic dual-lumen tunneled venous access catheters. SUMMARY BACKGROUND DATA: Infection is a frequent and potentially life-threatening complication of tunneled chronic cuffed silastic central venous access catheters in cancer patients. Recent experience with antimicrobial silver-impregnated cuffs placed on nontunneled percutaneously inserted central venous catheters suggests that such a cuff may render the catheter less prone to infection. METHODS: The authors prospectively randomized 200 cancer patients to receive either a dual-lumen 10 French tunneled cuffed silastic central venous access catheter or the same catheter with a second more proximal subcutaneous silver-impregnated cuff. All patients then were followed prospectively for infectious morbidity until the device was removed or the patient died. RESULTS: The hazard rate for infection/day (95% confidence limits) was 0.0022 (0.0015 to 0.0030) for standard catheters compared with 0.0027 (0.0019 to 0.0037) for catheters with silver-impregnated cuffs (p = not significant). Regression analysis of infection-free interval of both catheter types shows no difference over the lifetime of catheter as well as the over the first 48 days after insertion. CONCLUSIONS: The study indicated no effect of a silver-impregnated cuff in decreasing the incidence of catheter-related bacteremias/fungemias, tunnel infections, or the spectrum of causative microorganisms involved in cancer patients with tunneled chronic venous access catheters.
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