Assessing two methods of repair of duodenal defects, jeujenal serosal patch and jejunal pedicled flap, (an experimental animal study)

Objective: To evaluate the outcomes of jejunal serosal patch and jejunal pedicled flap procedures for the repair of duodenal injuries. Methods: The experimental animal-model study was conducted at Shiraz University of Medical Sciences, Iran, in February 2013. Ten mixed-breed male dogs were selected and randomly divided into groups A and B. After general anaesthesia, a large duodenal defect was created in all animals. The defect was repaired with jejunal pedicled flap in group A and jejunal serosal patch in group B. Microscopic healing was scored according to epithelialisation, collagenisation, inflammation, ulcer and necrosis of samples. Kolmogorov-Smirnov and independent t-test were used to indicate normal distributions of data and statistical differences between the two groups respectively. Results: The weight of the animals ranged between 23 and 37kg and the age range was 12-16 months. All dogs survived the procedures. Anastomotic leakage, intra-abdominal abscess or intestinal obstructions were not detected in gross examination. Healing score was significantly higher in the group A than group B (p 0.011). However, in terms of surgical findings, no significant difference was detected between the groups (p 0.05). Conclusion: Applying jejunal pedicled flap for repairing large duodenal defects would lead to better histologic outcomes compared to jejunal serosal patch in dogs.