Immune-Mediated Haemolytic Anaemia Welfare in Dogs

IMHA causes life-threatening destruction of red blood cells from autoimmune attack. Emergency treatment and careful monitoring are essential for welfare.

Key Facts

IMHA has a mortality rate of 20-40% even with aggressive treatment
Cocker spaniels, English springer spaniels, and Old English sheepdogs are over-represented
Signs include severe lethargy, pale gums, jaundice, and collapse from anaemia
Blood transfusion provides emergency support while immunosuppression takes effect
Thromboembolic complications including pulmonary thromboembolism cause additional welfare risk

Welfare Considerations

IMHA causes extreme welfare compromise from severe anaemia causing profound weakness, breathlessness, and inability to stand. The speed of haemolysis means dogs can deteriorate from apparent wellness to critical illness within hours. Emergency blood transfusion provides immediate welfare improvement while immunosuppressive therapy prevents further destruction. Thromboembolic prophylaxis is essential as clot formation is a major complication cause. With aggressive treatment, many dogs achieve complete remission, though relapse risk requires ongoing monitoring for welfare management.

What You Can Do

Seek emergency veterinary care immediately for any dog with pale gums or sudden collapse
Agree to blood transfusion for IMHA dogs requiring emergency support
Administer immunosuppressive medication consistently and attend all monitoring appointments
Be aware of relapse signs and seek prompt veterinary advice if they occur