Feline Portosystemic Shunts: A Case Report
Keywords:Portosystemic shunts, PSS, Ammonia, Cellophane banding
A 4 kg, 3 year-old, spayed female, Persian cat was presented at Prasu-Arthorn Animal Hospital, Faculty of Veterinary Science, Mahidol University with the clinical sign of ptyalism for the past year. Two days before the visit, the owner reported a behavioral change, circling and obtunded. From the physical examination, all vital signs were normal. Hematological values were within reference interval. However, Serum ammonia and Pre-prandial Post-prandial bile acid were elevated. Thoracic radiographic and abdominal ultrasonographic findings were unremarkable. Computed tomography (CT) result revealed the left gastro-caval shunt with portal hypertension. The cat was diagnosed as feline extrahepatic portosystemic shunt. Surgical excision was applied with cellophane banding. The cat was admitted for post-operative care for 7 days. During the hospitalization, pain assessment was monitored with systolic blood pressure and closely observed the clinical sign of seizure. Moreover, abdominal ultrasonography was performed to monitor ascites and peritonitis. The ammonia and pre-prandial/post -prandial bile acid tests was done on day 1,7 and 120 after surgery which displayed within normal range. The cat did not express ptyalisim or neurological disorders such as seizure after surgery during the observation period more than 120 days. This case report aimed to describe a successful treatment of portosystemic shunt in a cat.
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