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Jueves 02 de julio 2020   BUSQUEDA
Acun  Gokce, Ozdemir  Hakan, Sunamak  Oguzhan, Ozdemir Zehra Unal, Baskan  Emel, Yazi   Mete, Savas  Berna, Berberoglu  Ugur.
The effect of single-dose intraperitoneal bevacizumab on peritoneal adhesion formation
Rev Invest Clin 2018; 70(6)  : 279-284


Background: Intra-abdominal adhesions and their complications following abdominal surgery are serious problems, with an incidence of 67-93%. Prevention of peritoneal adhesion formation may eliminate the need for surgical intervention, decreasing complications, morbidity, and cost. Bevacizumab is a recombinant monoclonal antibody which specifically binds vascular endothelial growth factor, an important cytokine in adhesion formation, and neutralizes its biological activity. We developed an experimental model in rats to determine the effect of bevacizumab in preventing adhesion formation and analyzed its effect both micro- and macroscopically.

Methods: We used 32 Wistar rats randomly divided into two groups: Group A (control) and Group B (bevacizumab), with 16 rats each. A modified cecum abrasion model was developed; 0.9% NaCl solution was administered intraperitoneally to Group A and bevacizumab to Group B. On day 15, adhesion formation was evaluated both macro- and microscopically.

Results: Both micro- and macroscopic adhesion grades in Group B were significantly lower than those of control Group A; macroscopic grades were 2.69 ± 0.95 and 0.69 ± 0.8, and microscopic grades were 2.25 ± 1.06 and 0.5 ± 0.52 for Groups A and B, respectively.

Conclusions: Bevacizumab was effective in preventing intraperitoneal adhesion formation in our study; however, its inhibitory effects on embryogenesis and the hematopoietic, endocrine, and immune systems may limit its clinical use.

Palabras clave: Peritoneal adhesion, bevacizumab, vascular endothelial growth factor.
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