Effects of montelukast on the healing of ischemic colon anastomoses.

Atilla Celik, Ersin Ergun, Neset Koksal, Aysun Simsek Celik, Ediz Altinli, Mehmet Ali Uzun, Ersan Eroglu, Ahu Kemik

Index: Am. J. Surg. 206(4) , 502-8, (2013)

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Abstract

The aim of this study was to examine whether treatment with montelukast, a selective leukotriene antagonist, would affect anastomotic healing in a reperfused colon rat model with remote ischemia/reperfusion injury.Rats (n = 12 per group) were intraperitoneally administered normal saline or 10 mg/kg montelukast sodium 60 minutes before and for 5 days after surgery. Ischemia was induced for 45 minutes through superior mesenteric artery occlusion. A left colon anastomosis was made. Blood and perianastomotic tissue samples were obtained on postoperative day 5.Mean anastomotic bursting pressures of the control and montelukast groups were 159.17 ± 29.99 and 216.67 ± 26.40, respectively (P < .001). Compared with saline, montelukast treatment increased the mean tissue hydroxyproline level (2.46 ± .30 vs 3.61 ± .33 μmol/L) and decreased tissue caspase-3 activity (36.06 ± 5.72 vs 21.78 ± 3.87) and malondialdehyde levels (3.43 ± .34 vs 2.29 ± .34 nmol/g) (P < .001 for all). Other plasma markers of injury also showed differences.Montelukast prevented ischemia/reperfusion-induced damage in a rat model of colonic anastomotic wound healing.Copyright © 2013 Elsevier Inc. All rights reserved.