Wound healing in the intestinal wall

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Abstract
The healing of both rabbit ileal and colonic infected anastomoses has been investigated. Infection was induced by implanting a capsule with human fecal material in the anastomotic area. Infection did result in lowered bursting pressures, which effect was most pronounced in ileum seven days postoperatively. In general, the average hydroxyproline levels in and around infected anastomoses were lower than the hydroxyproline concentrations measured around noninfected anastomoses. This difference was most significant in the segment proximal to the ileal anastomosis seven days after operation, in the segment distal to the colonic anastomosis three days after operation, and in the segment proximal to the colonic anastomosis seven days after operation. It is concluded that infection interferes with the early stages of the healing sequence in rabbit intestinal anastomoses, profoundly affecting collagen metabolism. Our work does not support recent publications that report an unchanged or even increased wound strength under infected conditions.

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