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  • Title: A prospective randomized comparison of an attached silver-impregnated cuff to prevent central venous catheter-associated infection.
    Author: Smith HO, DeVictoria CL, Garfinkel D, Anderson P, Goldberg GL, Soeiro R, Elia G, Runowicz CD.
    Journal: Gynecol Oncol; 1995 Jul; 58(1):92-100. PubMed ID: 7789897.
    Abstract:
    The VitaCuff catheter, a specialized central venous catheter (CVC) with an attached silver-impregnated cuff, is designed to permit percutaneous placement and prolonged venous access. A prospective randomized study was undertaken comparing the VitaCuff with standard triple lumen catheters to determine if the VitaCuff reduces infection during extended use. All consenting patients underwent percutaneous placement of subclavian lines. By study design, control and VitaCuff catheters could remain in site for up to 7 and 14 days, respectively. Cultures were obtained from the preinsertion skin site, and upon removal, from the skin, hubs, infusates, CVC tip, and cuff. Statistical methods included chi 2, the Student t test, and the log-rank test on Kaplan-Meier estimates. Of 133 patients completing this study, 64 patients (48.1%) underwent VitaCuff placement and 69 patients (51.8%) served as controls. In 124 patients (93.2%), the indication for catheter placement was for perioperative care. Overall, 67 patients (50.4%) required central venous access > 7 days, necessitating > or = 1 additional line in 29 patients (21.8%). The incidence of pneumothorax per patient from the initial central line insertion was 4/104 (3.85%), significantly lower than the 4/29 (13.8%) incidence during secondary catheter placement (P = 0.046). Culture results upon catheter removal demonstrated a reduction in colonization of skin sites and hubs for the VitaCuff patients, but not for catheter tips or infusates. Regardless of the type of catheter used, colonization was dependent upon duration of insertion. The incidence of catheter-related sepsis was 6.8%, and did not differ significantly between the study groups. Multiple CVC insertions increase the incidence of pneumothorax. Because VitaCuff catheters permit extended access up to 14 days without increasing the incidence of sepsis, we recommend their use in patients who require prolonged CVC access.
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