Peer-reviewed veterinary case report
Extrahepatic portosystemic shunts in 172 dogs in Japan by CT scan
By Fukushima, K et al.·Published in Veterinary journal (London, England : 1997)·2014·Department of Veterinary Internal Medicine, Japan·View original on PubMed →
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Original publication title: Computed tomographic morphology and clinical features of extrahepatic portosystemic shunts in 172 dogs in Japan.
- Species:
- dog
Plain-English summary
A group of 172 dogs in Japan was diagnosed with extrahepatic portosystemic shunts (EH-cPSS), a condition where blood bypasses the liver, leading to various health issues. The most common type found was the spleno-phrenic shunt, particularly in older dogs. These dogs often had lower levels of certain liver enzymes and ammonia compared to those with other types of shunts. Understanding the specific type of shunt can help veterinarians provide better treatment options for affected dogs.
People also search for: dog portosystemic shunt symptoms · extrahepatic portosystemic shunt treatment · spleno-phrenic shunt in dogs
Abstract
Canine extrahepatic congenital portosystemic shunts (EH-cPSS) are classified into several anatomical types, depending on the origin and termination of the shunt vessel. The aim of this retrospective study was to determine the proportion and clinical features of each anatomical shunt type in a population of dogs presented to a veterinary teaching hospital in Japan. Dogs diagnosed with EH-cPSS using computed tomographic (CT) portography were included (n=172) and shunts were classified based on previous reports. Clinical data were collected from case records and analysed statistically. The most common anatomical type was the spleno-phrenic shunt (n=64), followed by the spleno-azygos (n=38), right gastric-caval (n=29), spleno-caval (n=21), right gastric-caval with caudal loop (n=9), right gastric-phrenic (n=6), colono-caval (n=3), spleno-phrenic and azygos (n=1), and porto-caval (n=1) shunts. Spleno-phrenic and spleno-azygos shunts were diagnosed more frequently in older dogs than right gastric-caval and spleno-caval shunts (P<0.05). The portal vein/aortic (PV/Ao) ratio was significantly larger in dogs with spleno-phrenic shunts than in dogs with spleno-azygos, right gastric-caval or spleno-caval shunts (P<0.05). The PV/Ao ratio was significantly larger in dogs with spleno-azygos shunts than in dogs with right gastric-caval shunts. Dogs with spleno-phrenic shunts had significantly lower serum alkaline phosphatase activities than those with right gastric-caval or spleno-caval shunts. Dogs with spleno-phrenic shunts had significantly lower fasting ammonia concentrations than those with spleno-caval shunts.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/24512983/