Abstract
This study was designed to evaluate the feasibility of AlloMEM™, a novel lyophililzed human peritoneal membrane, at peritoneal reconstitution, and decreasing adhesion formation after temporary loop ileostomy. In a pilot study, ten patients had AlloMEM™ used during elective formation of a temporary diverting loop ileostomy for benign or malignant colorectal disease. A blinded investigator and the operating surgeon analyzed the change in adhesion formation and peritoneal remodelling using ileostomy mobilization time and a 5-point adhesion scale grading intra-abdominally and at the subcutaneous and fascial levels. The mean body mass index was 31 [standard deviation (SD) 5.6], and 40 % of patients had previous abdominal surgery. Ileostomies were reversed after a mean 14 weeks (SD 6.0). The mean ileostomy mobilization time was 27.2 min (SD 12.0). From baseline to ileostomy reversal, there were significant increases in adhesions at the subcutaneous (p = 0.0002) and fascial levels (p = 0.0024). The increased subcutaneous adhesions were associated with improved peritoneal remodeling. There was no significant increase in adhesions from baseline to ileostomy reversal at the intra-abdominal points (p = 0.9393) or around the ileostomy site (p = 0.6128). The median hospital length of stay was 2.6 days (range, 2-3). A single adverse event related to product packaging led to redesign of the packaging process. Use of AlloMEM™ in ileostomy closures suggested improvement in adhesions around the fascia and promotion of peritoneal remodeling. AlloMEM™ was safe, feasible, and easy to use in this pilot study. Comparative research is needed to assess the outcomes with this novel product.
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