Polylactic acid nanosheets in prevention of postoperative intestinal adhesion and their effects on bacterial propagation in an experimental model. BJS 2016; 103: 692-700.
Published: 3rd March 2016
Authors: A. Hinoki, A. Saito, M. Kinoshita, J. Yamamoto, D. Saitoh, S. Takeoka et al.
Ultrathin films (nanosheets) adhere tightly to organ surfaces but prevent adhesion to other organs. The antiadhesive effect of nanosheets and their effect on bacterial propagation were investigated in a murine intestinal adhesion model.
Polylactic acid nanosheets (approximately 80 nm thick) were produced. Serosal defects were created by peeling off the intestinal serosa; these were left open or covered with nanosheets or Seprafilm® and the formation of intestinal adhesions was analysed. To examine bacterial propagation, a nanosheet or Seprafilm® was placed on intact murine jejunum followed by
Treatment both with nanosheets and with Seprafilm® reduced postoperative intestinal adhesion (mean adhesion score 0·67 for nanosheets, 0·43 for Seprafilm® and 2·87 for no antiadhesive treatment;
Nanosheets may be effective novel antiadhesive agents even in the presence of bacterial contamination. Intra‐abdominal adhesions following surgical contamination can trigger postoperative complications and lead to deterioration in long‐term quality of life. However, currently there are no effective antiadhesion materials to prevent the formation of adhesions.
Intra‐abdominal adhesions following surgical contamination can trigger postoperative complications and lead to deterioration in long‐term quality of life. However, currently there are no effective antiadhesion materials to prevent the formation of adhesions.Full text
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