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Amaç: Kolon anastomozu ile ilgili kaçak nedenleri konusunda devam etmekte olan araştırmalar vardır. Bu çalışmada anastomoz dayanıklılığının ameliyat öncesinde beta-hidroksi-metil bütirat (HMB) ile artıp artmayacağı denetlenmiştir. Gereç ve Yöntemler: Kırk rat 4 gruba randomize edildi. Grup A (n=10) ratları standart rat yemi ile birlikte arjinin+glutamin+HMB’den zengin diyetle 7 gün beslendikten Öz Objective: The studies on anastomotic leakage which is one of the leading serious complications of colonic anastomoses keep going as well as other surgical researches. This study was designed to investigate effects of hydroxy-ß-methyl butyrate (HMB) on anastomotic healing. Materials and Methods: Forty rats were randomized into four groups. Group A (n=10) rats received chow food plus arginine+glutamine+HMB rich diet for 7 days before right colonic transection followed by an end-to-end anastomosis. Group B (n=10) rats received chow food plus arginine and glutamine rich diet for 7 days before the same surgical procedure. Group C (n=10) rats underwent the same procedure after a 7-day chow plus glutamin rich diet. Group D (n=10) rats had the surgery after a chow food only diet for seven days. All the subjects were fed accordingly to their groups for 7 days postoperatively. On the 7th day, all rats were sacrificed under anesthesia to measure anastomotic bursting pressure and evaluate hydroxyproline levels as well as histopathological scoring of anastomotic line. Results: This study revealed significantly increased hydoxyproline level at the 7th day in group A (p<0.002) and group B (p<0.001) relative to group D. There were no significant differences among the groups for anastomotic bursting pressures and histopathological scores. Conclusion: Enteral HMB support may result statistically significant increased biochemical anastomotic strength with an insignificant difference in biomechanical force. Although more studies are needed to delineate better efficacy, preoperative enteral HMB support may decrease postoperative morbidity and mortality. Ad dress for Cor res pon den ce/Ya zış ma Ad re si: Hakan Erpek MD, Adnan Menderes University Faculty of Medicine, Department of General Surgery, Aydın, Turkey Phone : +90 548 822 71 04 E-mail : hakanerpek@yahoo.com Received/Geliş Ta rihi : 12.01.2017 Accepted/Ka bul Ta ri hi : 17.05.2017 Anah tar Ke li me ler Beta-hidroksi-beta-metil butirat, anastomoz, nütrisyon

Effects of Glutamine, Arginine and Beta Hydroxymethybutyrate on Anastomotic Leakage in Experimental Colon Anastomosis