Report of congenital colonobladder fistula with atresia ani in a lamb and treatment by surgery
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文摘
Colonobladder fistula and anal atresia, including congenital malformations in animals, occur due to genetics, environmental factors and vascular insufficiency. A male lamb was brought to a private veterinary clinic in Amol city, Mazandaran province, Iran. The lamb had clinical symptoms such as lethargy, dehydration, closed anus and watery feces in the genital organ. After taking radiograph and clinical examinations, it was found that the lamb was suffering from both colonobladder fistula and anal atresia; and emergency surgery was done. First, aseptic conditions and analgesia at the lumbosacral region of the trunk were put into practice and after cutting the abdominal muscles, accumulated feces in intestine were removed via an intestinal incision. The intestine was separated from the bladder via an incision and the bladder was sutured. Then, after creating an artificial hole in the base of the tail as the animal's new anus, the intestine was sutured to the original anus. At the end of surgery, serum therapy with sugar-salt dextrose 5% NaCl 0.9% solution and antibiotic therapy with penicillin and streptomycin were performed. This report is the first report of an unusual lamb with anal atresia and colonobladder fistula in the north of Iran. This surgery was achievable and is an obligatory surgery in affected animal rather than alternative euthanasia.

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