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ABSTRACT
Background: No systemic preventive therapy has been successful in inhibiting the development of postoperative peritoneal adhesions (PPAs). Objective: The aim of this study was to evaluate the potential effects of 5 day administration of parecoxib, on PPA prevention and on suture or wound healing in rats. Methods: In a model of PPAs induced by peritoneal electrical burn, 30 rats were randomized into 3 groups according to parecoxib administration route (control; intraperitoneal (IP); intramuscular (IM)). Plasma and peritoneal levels of PAI-1 and tPA were measured at T0, after 90 min of surgery (T90), and on postoperative day 10 (D10). In a cecum resection model, 20 rats were randomized into two groups (control and IP parecoxib), and abdominal wound healing and suture leakage were assessed at D10. In both models, PPAs were evaluated quantitatively and qualitatively on D10. Results: Administration of parecoxib significantly decreased the quantity (p < .05) and the severity (p < .01) of PPAs in both models. In addition, parecoxib administration did not cause healing defects or infectious complications in the two models. In the peritoneal burn model, IP or IM parecoxib administration inhibited the increase of postoperative plasma and peritoneum PAI-1 levels, an increase that was observed in the control group (p < .01). No anastomosis leakage could be demonstrated in both groups in the cecum resection model. Conclusion: This study showed that, in these rat models, parecoxib might reduce PPA formation. Confirmation of the safety of parecoxib on intestinal anastomoses is required and should be investigated in further animal models.