Pancreatitis in cats differs substantially from the disease in dogs — it is often chronic, subtle in presentation, and frequently occurs alongside other conditions including inflammatory bowel disease (IBD) and cholangitis. Recognition is challenging, and effective management requires a nuanced approach to this multi-system disease.
Unique Features of Feline Pancreatitis
In cats, the pancreatic and bile ducts share a common opening into the duodenum (unlike in dogs, where they are separate). This anatomical arrangement means pancreatic, biliary, and intestinal inflammation frequently occur simultaneously — the "triaditis" of pancreatitis, IBD, and cholangitis is common in cats.
Acute vs Chronic Pancreatitis
Acute pancreatitis in cats presents with sudden onset of vomiting, abdominal pain, lethargy, and anorexia — similar to dogs. Severe acute disease with haemorrhage and necrosis carries a grave prognosis. However, the more common presentation in cats is chronic pancreatitis — a smouldering, subclinical inflammation with intermittent or persistent low-grade signs including vague inappetence, weight loss, and periodic lethargy.
Clinical Signs
- Lethargy and depression
- Inappetence or reduced appetite
- Weight loss
- Vomiting (less prominent than in dogs)
- Dehydration and hypothermia in severe cases
- Jaundice if concurrent hepatic lipidosis or cholangitis
Diagnosis
Feline pancreatic lipase immunoreactivity (fPLI) — specifically the Spec fPL test — is the most sensitive and specific blood marker. Ultrasound is moderately sensitive for pancreatitis detection in cats but requires skilled operator and equipment. Biopsy provides definitive diagnosis but carries anaesthetic risk. Concurrent testing for IBD (cobalamin, folate, TLI) and biliary disease completes the workup for triaditis.
Treatment
Management focuses on supportive care and addressing concurrent conditions:
- IV fluid therapy for dehydration correction
- Anti-nausea medication (maropitant, ondansetron)
- Nutrition is critical: Unlike previous advice to withhold food, early enteral feeding is now recommended — nasoesophageal tube feeding if voluntary intake is inadequate
- Analgesia: buprenorphine for pain management in acute cases
- Cobalamin (vitamin B12) supplementation — commonly deficient in cats with GI disease
- Prednisolone if concurrent IBD is diagnosed
Welfare Significance
Chronic pancreatitis causes insidious long-term welfare compromise — cats experience chronic nausea, abdominal discomfort, and weight loss that may be attributed to "just getting old." Regular monitoring in middle-aged and older cats, particularly those losing weight, enables earlier diagnosis and better welfare outcomes. The link with triaditis means comprehensive workup addressing all three conditions is essential for meaningful clinical improvement.