Addisonian Crisis Management in Dogs

Addison disease in dogs can present as a life-threatening adrenal crisis requiring emergency treatment, and long-term management must prevent further crisis episodes.

Key Facts

Hypoadrenocorticism results from destruction of the adrenal cortex, impairing cortisol and aldosterone production
The classic Addisonian crisis presents with collapse, severe bradycardia, vomiting, and weakness
Atypical Addison disease lacks electrolyte abnormalities, making diagnosis more challenging
Diagnosis relies on ACTH stimulation testing to confirm blunted cortisol response
Emergency treatment requires intravenous fluids, electrolyte correction, and glucocorticoid supplementation
Long-term management uses oral fludrocortisone or monthly DOCP injections plus oral prednisolone

Welfare Considerations

Dogs experiencing an Addisonian crisis are in a life-threatening emergency with profound welfare implications including cardiovascular collapse, hypothermia, and acute distress. Survival depends on rapid diagnosis and aggressive treatment. Even dogs that appear stable between crises are under chronic physiological stress if sub-optimally managed. Once stabilised and on appropriate long-term medication, Addisonian dogs typically enjoy excellent quality of life with normal life expectancy. The welfare priority after initial crisis resolution is finding the maintenance dose that prevents future episodes while minimising side effects.

What You Can Do

Seek emergency veterinary care immediately if your Addisonian dog shows sudden weakness or collapse
Carry a veterinary emergency letter describing your dog's Addison diagnosis when travelling
Discuss stress dosing protocols with your vet for situations such as surgery or severe illness
Monitor electrolytes regularly to ensure fludrocortisone or DOCP dosing remains optimal
Keep the ACTH stimulation test up to date to confirm adequate long-term cortisol management