A congenital extrahepatic porto-internal thoracic shunt was attenuated with cellophane banding in a cat with multiple embryogenetic anomalies. Changes in the postoperative shunt diameter were monitored using ultrasound and CT angiography. The patient improved clinically after cellophane banding, showing resolution of hepatic encephalopathy, weight gain and normalisation of serum ammonia and bile acid levels. The shunt vessel stopped narrowing at four postoperative weeks, and a complete closure was surgically achieved after 9 months. The patient stopped vomiting immediately after the second surgery. Additional histopathological results suggested lymphoplasmacytic enteritis, which was treated medically. The reason why complete closure with the cellophane banding was not attained remains unclear. However, it can be hypothesised that the material did not function as normal cellophanes or that placement of the cellophane within the falciform ligament did not result in the usual inflammatory reaction or closure of the vessel.
- porto-internal thoracic shunt
- congenital portosystemic shunts
- cellophane banding
- computed tomography angiography
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Contributors All authors contributed to the writing and editing of this manuscript. HL, GD and ZKY made clinical decisions regarding the surgical and medical treatments. HL and JL performed the surgeries. RL was responsible for diagnostic imaging and the follow-up. GD was responsible for reviewing of the manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.
Data availability statement All data relevant to the study are included in the article.
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