Comparative study of different techniques of intestinal anastomosis coverd with omentum in dogs

This study was conducted to compare three techniques of intestinal anastomosis in dogs. Twenty four healthy adult dogs were used. Animals were divided into three equal groups. First group (control group) in which single– layer by cross mattress interrupted suture technique was used to approximate all layers of intestine. While in second and third groups, similar fasion as in first group, but the site of anastomosis was covered by free omentum and pedicle omentum respectively. The radiological and histopathological examinations at the periods of 15 and 30 days postoperation revealed that the third group showed lowest mean of degree of anastomotic stenosis (28.5%), while, the highest mean of degree of stenosis was found in the second group (49.6%). The biopsy examination revealed that simple adhesions in the first and second group, while no adhesions were observed in third group. The histopathological examination showed that the healing in the third group occurred by the first intention healing, while in other groups associated with fibrous tissue formation. Altimately there were no significant differences of bursting pressure in between three groups at (15) and (30) days postoperation.