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  • Title: Prevention of experimental postoperative peritoneal adhesions by N,O-carboxymethyl chitosan.
    Author: Kennedy R, Costain DJ, McAlister VC, Lee TD.
    Journal: Surgery; 1996 Nov; 120(5):866-70. PubMed ID: 8909523.
    Abstract:
    BACKGROUND: Postsurgical adhesion formation can result in significant morbidity and, to a lesser extent, death. The purpose of this experiment was to assess the ability of N,O-carboxymethyl chitosan (NOCC) to prevent postsurgical adhesion formation in vivo. METHODS: Randomized groups of Sprague-Dawley rats were studied under two abdominal surgery models, the uterine horn model and the small bowel laceration model, for the ability of NOCC to reduce the incidence and severity of adhesion formation. Adhesions in animals were assessed after death by a blinded observer 10 to 14 days after surgical manipulation. RESULTS: NOCC consistently reduced the size, strength, and number of adhesions in both rat models. NOCC was also found to be more effective than hyaluronic acid at inhibiting adhesion formation. CONCLUSIONS: NOCC is a more effective antiadhesion agent than is the more expensive hyaluronic acid. Although the exact mechanism of NOCC's antiadhesion activity is as yet unclear, the novel chemical is of particular interest for clinical use.
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