Evaluation of some hematological and biochemical parameters after bariatric surgery in overweight male dogs

This study was conducted to determine the effect of bariatric surgery on some hematological and biochemical measurements in overweight male dogs and whether this type of surgery has complications. The study included 12 overweight male dogs (age 1.5-3 years) weighing 33-39 kg. The dogs were randomly divided into two groups, each containing six dogs. While the second group underwent gastric bypass surgery, the first group underwent gastric sleeve surgery. A blood sample was taken from each animal before surgery, as well as after 2, 4, 6, and 8 weeks, to evaluate some blood parameters such as (Red blood cell count, White blood cell count, Hemoglobin and Platelet count) and biochemical parameter such as (Iron, Vitamin B12, Vitamin D3, Calcium, Sodium, Potassium, and Chlorides) according to biochemical analysis. The iron, vitamin B12 and calcium levels decreased significantly in both groups, more in the second group than in the first group. However, there was no difference between the two groups in other biochemical tests, such as vitamin D3, sodium, potassium and chlorides. According to the blood test results, statistically significant differences were found in the white blood cell (WBC), red blood cell (RBC), hemoglobin (Hg), and platelets (PLT) before and after surgery but between the two groups, there were no differences. In conclusion, there was a significant decrease in the level of iron and vitamin B12, which is the cause of anemia in both groups, and there was a decrease in the level of calcium. The results showed that gastric bypass surgery caused more severe changes and more complications than gastric sleeve surgery.