Annals of Surgical Treatment and Research

The Korean Surgical Society (대한외과학회)
권호 표지

Anti-adhesive Effect of Poloxamer/Alginate/CaCl2 Mixture in the Rat Model

백서 맹장/복벽 찰과상 모델에서 열감응성 유착방지제(Poloxamer/ Alginate/CaCl2 Mixture)의 효과

Gwon, Seong-Won;Im, Se-Hwan;Lee, Yeong-U;Lee, Yun-Gi;Chu, Bo-Yeong;Lee, Jin-Ho;Lee, Yeong-Mu
권성원;임세환;이영우;이윤기;추보영;이진호;이영무

  • Published : 20060000
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Abstract

Purpose: The occurrence of post-surgical adhesion is still a major cause of postoperative morbidity due to the lack of satisfactory treatment or prophylaxis. Several adhesion barriers have been developed in the form of solutions or membrane in an attempt to solve these problems. However both types of tissue barriers have some limitations in their practical applications. In order to overcome these problems, a temperature-sensitive Poloxamer/Alginate/CaCl2 mixture was prepared as an adhesion barrier. With this material, toxicity, inflammation and the adhesion prevention effect was evaluated in an animal model. Methods: The sol-gel transition behavior was measured using a viscometer. An in vitro gel stability test and an in vivo degradation test was performed. The anti-adhesion effect was evaluated using a cecal-abdominal wall abrasion model. The denuded cecum was coated with Poloxamer/ Alginate/CaCl2 mixture, GUARDIX-SL (positive control group) or neither (negative control group) and apposed to the abdominal wall (each n=14). One week after surgery, the level of adhesion was graded from zero to three using a whole-number system. Results: The LCST of the poloxamer/sodium alginate mixture was 25oC. The gel stability of Poloxamer was improved by adding mild cross-linked sodium Alginate/CaCl2 mixture. The adhesion grade and area were significantly lower in the experimental group than in the control. Conclusion: The anti-adhesive effect of the Poloxamer/ Alginate/CaCl2 mixture was comparable to the previously- developed solution type barrier and all the materials had degraded within 21 days. From these results, Poloxamer/ Alginate/CaCl2 mixture is a good candidate for use as a coatable or injectable tissue adhesion barrier. (J Korean Surg Soc 2006;71:280-287)

Keywords

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