Effect of abdominal insufflation on bacterial growth in experimental peritonitis

ŞARE M., Demirkiran A. E., Alibey E., Durmaz B.

Journal of Laparoendoscopic and Advanced Surgical Techniques - Part A, vol.11, no.5, pp.285-289, 2001 (SCI-Expanded) identifier identifier


Background: Perforated appendicitis can be treated laparoscopically, but this approach is associated with a higher rate of intra-abdominal abscess. Pneumoperitoneum impairs the clearance of bacteria from the peritoneal cavity in experimental models of peritonitis. The aim of this study was to investigate the effects of intra-abdominal gas insufflation on bacterial growth in a rat model. Materials and Methods: The effects of intraperitoneal insufflation with different gases and a gasless model on bacterial proliferation in a setting of Escherichia coli-induced experimental peritonitis were studied in a rat model. Saline (0.25 mL) was given intraperitoneally to six Wistar male rats as the sham group. Escherichia coli (1.5×109cfu/mL per kilogram) was injected intraperitoneally into to 24 rats. Microorganism counts were taken after 8 hours, and rats were divided into three groups: group 1, CO2insufflation; group 2, N2O insufflation; and group 3, no insufflation. Microorganism counts were repeated 8 hours after the procedure (at 16 hours postinjection). Results: The difference in microorganism counts between 8 and 16 hours were significant in the CO2and N2O insufflation groups (P<0.05) but not in the group without pneumoperitoneum. Conclusions: Abdominal insufflation may promote intra-abdominal bacterial growth or decrease intra-abdominal bacterial clearance. © 2001 Mary Ann Liebert, Inc.