This is the Scientific Surgery Archive, which contains all randomized clinical trials in surgery that have been identified by searching the top 50 English language medical journal issues since January 1998. Compiled by Jonothan J. Earnshaw, former Editor-in-Chief, BJS

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.

Background

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.

Method

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 Escherichia coli inoculation at the site.

Results

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; P < 0·001 for nanosheets or Seprafilm® versus no adhesive treatment). Nanosheet treatment did not affect bacterial propagation in the peritoneal cavity, whereas Seprafilm®‐treated mice showed bacterial propagation, leading to increased mortality.

Conclusion

Nanosheets may be effective novel antiadhesive agents even in the presence of bacterial contamination.

Surgical relevance

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

You may also be interested in

Leading article

Network meta‐analysis of urinary retention and mortality after Lichtenstein repair of inguinal hernia under local, regional or general anaesthesia.

Authors: J. H. H. Olsen, S. Öberg, K. Andresen, T. W. Klausen, J. Rosenberg

Original article

Outcomes of surgery for benign and malignant adrenal disease from the British Association of Endocrine and Thyroid Surgeons’ national registry. BJS 2019; 106: 1495-1503.

Authors: N. Patel, R. J. Egan, B. R. Carter, D. M. Scott‐Coombes, M. J. Stechman, A. Afzaal et al.

Polylactic acid nanosheets in prevention of postoperative intestinal adhesion and their effects on bacterial propagation in an experimental model. BJS 2016; 103: 692-700.

Background

Method

Results

Conclusion

You may also be interested in

A good surgical death. BJS 2019; 106: 1427-1428.

Randomized controlled trial of plain English and visual abstracts for disseminating surgical research via social media.

Systematic review of the current status of cadaveric simulation for surgical training.

Network meta‐analysis of urinary retention and mortality after Lichtenstein repair of inguinal hernia under local, regional or general anaesthesia.

Effect of donor nephrectomy time during circulatory‐dead donor kidney retrieval on transplant graft failure.

Diagnostic performance of MRI and histology in assessment of deep lipomatous tumours.

Dysregulation of the actin scavenging system and inhibition of DNase activity following severe thermal injury.

Trauma models to identify major trauma and mortality in the prehospital setting.

5G‐assisted telementored surgery.

Validation of the Norwegian survival prediction model in trauma (NORMIT) in Swedish trauma populations.

Human model of burn injury that quantifies the benefit of cooling as a first aid measure. BJS 2019; 106: 1472-1479.

Outcomes of surgery for benign and malignant adrenal disease from the British Association of Endocrine and Thyroid Surgeons’ national registry. BJS 2019; 106: 1495-1503.