Mitral valve disease in dogs
Degeneration of the heart's mitral valve lets blood leak backwards, straining the heart. It typically causes a murmur first, then coughing, breathlessness and eventually heart failure. It is the most common heart disease in small older dogs.
Breeds commonly associated with Mitral valve disease (6)
Related cardiac conditions
Note. Breed associations are compiled from RVC VetCompass / AKC / PDSA and are indicative, not a diagnosis or veterinary advice. Browse all conditions or the breed directory.