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Iraqi Journal of Veterinary Sciences

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New surgical model to induce irreversible liver fibrosis by surgical closure of major duodenal orifice in dogs

Iraqi Journal of Veterinary Sciences, In Press
10.33899/ijvs.2022.132219.2071

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Abstract

This study was conducted to induce and evaluate irreversible hepatic fibrosis in dogs by surgical closure of the major duodenal orifice. The study was performed on six healthy local adult dogs. Irreversible hepatic fibrosis was surgically induced in all animals by surgical closure of major duodenal papilla using non-absorbable suture material for 60 days. Induced hepatic fibrosis was evaluated by clinical, ultrasonographical examination, laboratory and histopathological methods. The clinical manifestation of the jaundiced dogs showed reduced food intake, pale-yellowish mucus membrane, inflammatory signs of wound site and severe post-operative pain. Biochemically, there was significant increased values of the aspartate aminotransferase , alkaline phosphatase , alanine aminotransferase , indirect bilirubin, direct bilirubin and total bilirubin especially during first two days after surgery followed by a gradual decrease of these values until the end of the but still higher than normal values. Ultrasonographic examinations showed abnormal change in the liver tissue such as increase in both size and wall thickness of the gall bladder and mottled heterogeneous appearance of the liver during the first two weeks following the surgical induction of the hepatic fibrosis and lasted until the end of the study. Histopathological evaluation of liver samples revealed necrosis of hepatocytes and deposition of eosinophilic material, infiltration of inflammatory cells, recent thrombus in the hepatic vein, fatty change. In conclusion, surgical induction of irreversible hepatic fibrosis in dogs was feasible technique by surgical closure of major duodenal papilla and the results were confirmed by the clinical, ultrasonographical, laboratory and histopathological examination.
Keywords:
    liver fibrosis,, ,،,؛obstructive jaundice,, ,،,؛Ultrasonography,, ,،,؛dogs
Main Subjects:
  • Small Animal Histology
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(2022). New surgical model to induce irreversible liver fibrosis by surgical closure of major duodenal orifice in dogs. Iraqi Journal of Veterinary Sciences, (), -. doi: 10.33899/ijvs.2022.132219.2071
. "New surgical model to induce irreversible liver fibrosis by surgical closure of major duodenal orifice in dogs". Iraqi Journal of Veterinary Sciences, , , 2022, -. doi: 10.33899/ijvs.2022.132219.2071
(2022). 'New surgical model to induce irreversible liver fibrosis by surgical closure of major duodenal orifice in dogs', Iraqi Journal of Veterinary Sciences, (), pp. -. doi: 10.33899/ijvs.2022.132219.2071
New surgical model to induce irreversible liver fibrosis by surgical closure of major duodenal orifice in dogs. Iraqi Journal of Veterinary Sciences, 2022; (): -. doi: 10.33899/ijvs.2022.132219.2071
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