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Original Article
Volume 340:1-8 January 7, 1999 Number 1
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A Comparison of Two Antimicrobial-Impregnated Central Venous Catheters
Rabih O. Darouiche, M.D., Issam I. Raad, M.D., Stephen O. Heard, M.D., John I. Thornby, Ph.D., Olivier C. Wenker, M.D., Andrea Gabrielli, M.D., Johannes Berg, M.D., Nancy Khardori, M.D., Hend Hanna, M.D., Ray Hachem, M.D., Richard L. Harris, M.D., Glen Mayhall, M.D., for The Catheter Study Group

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ABSTRACT

Background The use of central venous catheters impregnated with either minocycline and rifampin or chlorhexidine and silver sulfadiazine reduces the rates of catheter colonization and catheter-related bloodstream infection as compared with the use of unimpregnated catheters. We compared the rates of catheter colonization and catheter-related bloodstream infection associated with these two kinds of antiinfective catheters.

Methods We conducted a prospective, randomized clinical trial in 12 university-affiliated hospitals. High-risk adult patients in whom central venous catheters were expected to remain in place for three or more days were randomly assigned to undergo insertion of polyurethane, triple-lumen catheters impregnated with either minocycline and rifampin (on both the luminal and external surfaces) or chlorhexidine and silver sulfadiazine (on only the external surface). After their removal, the tips and subcutaneous segments of the catheters were cultured by both the roll-plate and the sonication methods. Peripheral-blood cultures were obtained if clinically indicated.

Results Of 865 catheters inserted, 738 (85 percent) produced culture results that could be evaluated. The clinical characteristics of the patients and the risk factors for infection were similar in the two groups. Catheters impregnated with minocycline and rifampin were 1/3 as likely to be colonized as catheters impregnated with chlorhexidine and silver sulfadiazine (28 of 356 catheters [7.9 percent] vs. 87 of 382 [22.8 percent], P<0.001), and catheter-related bloodstream infection was 1/12 as likely in catheters impregnated with minocycline and rifampin (1 of 356 [0.3 percent], vs. 13 of 382 [3.4 percent] for those impregnated with chlorhexidine and silver sulfadiazine; P<0.002).

Conclusions The use of central venous catheters impregnated with minocycline and rifampin is associated with a lower rate of infection than the use of catheters impregnated with chlorhexidine and silver sulfadiazine.


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From the Departments of Medicine (R.O.D., R.L.H.), Physical Medicine and Rehabilitation (R.O.D.), Family and Community Medicine (J.I.T.), and Anesthesiology (O.C.W.), Baylor College of Medicine and Veterans Affairs Medical Center, Houston; the Department of Medical Subspecialties, University of Texas M.D. Anderson Cancer Center, Houston (I.I.R., H.H., R.H.); the Department of Anesthesiology, University of Massachusetts Medical Center, Worcester (S.O.H.); the Departments of Surgery (A.G.) and Medicine (J.B.), University of Florida College of Medicine, Gainesville; the Department of Medicine, Southern Illinois University School of Medicine, Springfield (N.K.); and the Department of Medicine, University of Texas Medical Branch, Galveston (G.M.). Presented in part as an abstract (LB-22) at the 37th Interscience Conference on Antimicrobial Agents and Chemotherapy, Toronto, September 28–October 1, 1997.

Address reprint requests to Dr. Darouiche at the Veterans Affairs Medical Center, Infectious Disease Section (Rm. 4B-370), 2002 Holcombe Blvd., Houston, TX 77030, or at darouiche.rabih.o{at}houston.va.gov.

Full Text of this Article


Related Letters:

Antimicrobial-Impregnated Central Venous Catheters
Paterson D. L., Bach A., Maury E., Offenstadt G., Yasukawa T., Fujita Y., Sari A., Darouiche R. O., Raad I. I.
Extract | Full Text  
N Engl J Med 1999; 340:1761-1762, Jun 3, 1999. Correspondence

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