United Pet Club

Hepatic encephalopathy

Hepatic encephalopathy is a neurological syndrome caused by the liver's failure to clear toxins, especially ammonia, from the blood. It occurs with portosystemic shunts and severe liver disease. Animals show dullness, circling, head pressing, drooling, and seizures, often worsening after meals. Management targets reducing toxin production and treating the underlying liver disorder.

Quick facts

Type:
Metabolic
Typical onset:
Subacute
Body systems:
Nervous, Hepatobiliary, Central nervous
Affected species:
CAT, DOG, HORSE
Reference codes:
ICD11 DB99.5, OMIA:453

Sources & references

This content is for educational purposes and is not a substitute for professional veterinary advice. If you are worried about your pet, contact your veterinarian.