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Perit Dial Int 6(4): 168-177 1986
© 1986 International Society for Peritoneal Dialysis
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REVIEWS AND ORIGINAL ARTICLES

BIOFILM AND FOREIGN BODY INFECTION THE SIGNIFICANCE TO CAPD-ASSOCIATED PERITONITIS

Clifford J. Holmes and Rosemary Evans

From the Department of Microbiology, Travenol Laboratories, Round Lake, Illinois.

Microbial colonization of indwelling and implantable medical devices and prostheses is known to precede the formation of an adherent biofilm, such as is found on peritoneal catheters during CAPD. Micro-organismderived exopolysaccharides within the biofilm matrix seem to confer unique biological properties on this material, such as enhanced resistance to host defenses and antimicrobial agents. It has been proposed that an adherent biofilm is a major contributing factor in the development of foreign-body infections, including CAPD peritonitis. The source of organisms which lead to biofilm formation on peritoneal catheters is unknown but may include "seeding" at the time of surgical placement and migration from the subcutaneous tunnel via the inner cuff.

KEY WORDS: Biofilm; Catheters; Peritonitis; Colonization.






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