Atrial Fibrillation in Cats

Atrial fibrillation is an abnormal heart rhythm associated with underlying cardiac disease in cats. Signs and treatment needs often reflect that underlying disease and its effect on circulation.

Editorial overview based on the linked VCA resource; this is not the complete original handout. Prepared 2026-10-03; not veterinarian-reviewed. Diagnosis and treatment, including medication choice and dose, require veterinary guidance.