What Is Pancreatitis?
Pancreatitis is inflammation of the pancreas — a glandular organ nestled in the upper right abdomen that serves two critical functions: producing digestive enzymes (exocrine function) and releasing insulin and glucagon to regulate blood glucose (endocrine function). In a healthy dog, digestive enzymes are released in an inactive form and only activated when they reach the small intestine. In pancreatitis, these enzymes activate prematurely within the pancreas itself, causing it to begin digesting its own tissue. This triggers a cascade of inflammation that, in severe cases, can extend beyond the pancreas to affect surrounding organs and cause systemic inflammatory response syndrome.
Pancreatitis is classified as either acute or chronic. Acute pancreatitis develops rapidly and can range from mild and self-limiting to severe and potentially fatal. Chronic pancreatitis involves persistent or recurrent low-grade inflammation and can eventually lead to permanent pancreatic damage, including exocrine pancreatic insufficiency (EPI) or diabetes mellitus.
Causes and Risk Factors
In many cases of canine pancreatitis, no single definitive cause is identified. However, several risk factors are well recognised:
- High-fat meals: feeding fatty table scraps, rich leftovers, or high-fat treats — particularly in dogs not accustomed to such foods — is one of the most common triggers. This is why pancreatitis spikes around festive periods.
- Obesity: overweight dogs have a significantly elevated risk of developing pancreatitis
- Certain medications: potassium bromide (used for epilepsy), azathioprine, L-asparaginase, and some antibiotics have been associated with pancreatitis in dogs
- Hyperlipidaemia: elevated blood triglycerides, seen in Miniature Schnauzers and some other breeds, predisposes to pancreatitis
- Concurrent disease: hypothyroidism, hyperadrenocorticism, and diabetes mellitus all increase risk
- Breed predisposition: Miniature Schnauzers, Cocker Spaniels, and Yorkshire Terriers are among the most commonly affected breeds
Clinical Signs: What Pancreatitis Looks Like
The severity of clinical signs correlates roughly with the degree of pancreatic inflammation. Mild cases may present simply as a reduced appetite and slightly tender abdomen, while severe cases can be life-threatening.
- Vomiting — often repeated and a hallmark sign of acute pancreatitis
- Abdominal pain — dogs may adopt a characteristic "prayer posture" (front legs stretched forwards, hindquarters raised) to relieve pressure on the upper abdomen
- Hunched posture when standing or walking
- Diarrhoea, sometimes with blood
- Lethargy and depression
- Loss of appetite (anorexia)
- Fever in some cases, or hypothermia in severe systemic disease
- Dehydration and weakness
In severe acute pancreatitis, systemic complications including cardiovascular shock, acute kidney injury, pulmonary oedema, and disseminated intravascular coagulation (DIC) can develop and are associated with a grave prognosis.
Diagnosis: cPLI and Beyond
Diagnosing pancreatitis can be challenging because no single test is perfectly accurate. WSAVA (World Small Animal Veterinary Association) and ECVIM-CA guidelines recommend a combination of clinical signs, laboratory findings, and imaging:
- Canine pancreatic lipase immunoreactivity (cPLI): the most sensitive and specific blood test for pancreatitis currently available in dogs. The Spec cPL assay (IDEXX) measures pancreatic-specific lipase; values above 400 mcg/L are strongly suggestive of pancreatitis. An in-clinic snap test (Snap cPL) provides rapid qualitative screening. ECVIM-CA considers cPLI the diagnostic test of choice.
- Routine haematology and biochemistry: may reveal leucocytosis, elevated liver enzymes, hyperlipidaemia, and electrolyte disturbances. Serum lipase and amylase — historically used to diagnose pancreatitis — are now known to be insufficiently specific and are no longer recommended as primary tests.
- Abdominal ultrasound: the imaging modality of choice for pancreatitis. Can reveal pancreatic enlargement, hypoechoic texture, surrounding fat saponification (hyperechoic fat), and free abdominal fluid. A normal ultrasound does not exclude pancreatitis.
- Abdominal radiography: less sensitive but may reveal a "ground glass" appearance in the right cranial abdomen or displacement of the duodenum
Treatment: Managing the Acute Episode
There is no specific antidote for pancreatitis; treatment is supportive and aimed at controlling symptoms, preventing complications, and resting the pancreas. The intensity of treatment depends on severity:
- Intravenous fluid therapy: the cornerstone of treatment for moderate to severe cases. IV fluids correct dehydration, maintain blood pressure, and support pancreatic perfusion. Hospitalisation is required.
- Pain management: pancreatitis is painful, and analgesia — typically opioids such as methadone or buprenorphine, combined with NSAIDs when safe — is a priority. ECVIM-CA guidelines emphasise that adequate analgesia improves patient comfort and recovery.
- Antiemetics: maropitant (Cerenia) is the antiemetic of choice in dogs and has an additional visceral analgesic effect. Metoclopramide may also be used.
- Nutritional support: the old approach of withholding all food ("resting the pancreas") is no longer supported by evidence. Early enteral feeding — even small amounts — is now recommended by WSAVA guidelines to maintain intestinal integrity and prevent bacterial translocation. Naso-oesophageal or oesophagostomy tube feeding may be needed in anorexic dogs.
- Treatment of underlying disease: hyperlipidaemia, hypothyroidism, or Cushing's disease should be addressed concurrently.
When to Hospitalise
Dogs with repeated vomiting, severe abdominal pain, dehydration, weakness, or any systemic signs require hospitalisation and intravenous treatment. Mild cases with a single vomiting episode, maintained hydration, and mild discomfort may be managed at home with oral antiemetics, analgesia, and a bland diet — but only after veterinary assessment confirms this is appropriate.
Dietary Management: The Long-Term Approach
Diet is central to preventing pancreatitis recurrence. ECVIM-CA and WSAVA both recommend a long-term low-fat diet for dogs that have experienced pancreatitis, particularly those with recurrent episodes or concurrent hyperlipidaemia:
- Target dietary fat content of less than 10% on a dry matter basis for most dogs; below 8% for Miniature Schnauzers or dogs with severe hyperlipidaemia
- Easily digestible protein sources to reduce digestive burden
- Consistent feeding routine — avoid sudden dietary changes
- No fatty treats, table scraps, rawhide, or high-fat chews
- Maintain a healthy body weight through portion control and regular exercise
Zooplus stocks several low-fat dog food ranges — including gastrointestinal recovery diets and sensitive stomach formulations — that are appropriate for dogs managing pancreatitis long term. Look for products with clearly listed fat percentages and avoid any food with fat listed as a primary ingredient. Always transition foods gradually over seven to ten days to avoid gastrointestinal upset.
Prognosis and Prevention
Mild pancreatitis generally carries an excellent prognosis with appropriate treatment and dietary change. Severe acute pancreatitis can be fatal, and dogs that survive may be at risk of recurrence, chronic pancreatitis, EPI, or diabetes mellitus. Preventing recurrence through strict dietary management, weight control, and regular veterinary monitoring is the most important step owners can take.
Written by Sarah Bennett