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  • Title: [Effect of pentoxifylline on the healing of experimental anastomosis of the left colon in rats].
    Author: Ender F, Labancz T, Furka I, Gamal EM, Fúrész J, Rosivall L.
    Journal: Magy Seb; 2001 Jun; 54(3):185-90. PubMed ID: 11432172.
    Abstract:
    The healing of colonic anastomoses is determined by several factors such as microcirculation, the strength of the inflammatory response, and the time required for regeneration. We investigated the effects of pentoxifylline--a drug which improves microcirculation and modulates leukocyte functions--on the healing of experimental anastomosis on the left colon of rats. As a result of drug treatment (0.25 mg/100 g, i.p.) in Group I anastomosis bursting pressure (ABP) was by 56 +/- 17% higher at day 2 than in controls with no pentoxifylline treatment. On the 5th postoperative day in Group I, ABP reached 80 +/- 8% the value for the intact colon (218 +/- 21 mmHg), whereas respective value in the control (untreated) group was only 47 +/- 7%. In Group II (pentoxifylline: 2 mg/100 g, i.p.) ABP was by 55 +/- 10% and by 73 +/- 8% higher than control values at postoperative days 1 and 2, respectively. At day 2, in Group I colonic blood flow measured at the anastomosis line by 86Rb uptake technique was significantly higher than in the untreated controls (0.18 +/- 0.01 ml/min vs. 0.14 +/- 0.01 ml/min, (p < 0.02). Blood flow measured in colon tissue above and below the anastomosis changed differently. Pentoxifylline treatment also suppressed the peritoneal inflammatory response assessed with peritoneal reaction index (2.0 +/- 0.3 vs. 1.1 +/- 0.2, p < 0.01). The results of the present study show that pentoxifylline treatment shortens the time needed for the healing of colonic anastomosis. These observations suggest that pentoxifylline medication can prevent failure of colonic anastomoses.
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