Mitral Insufficiency (Mitral Valve Degeneration, Myxomatous Valve Disease)(MI)

Mitral Insufficiency (MI, MVD): most common heart disease especially in small breed dog during their senior age. Cavalier King Charles are particularly predisposed to this disease, even at young age. The heart valves degenerate and consequently don´t close properly anymore. As a result, heart gets enlarged, and progressively loses its function. The dog starts then to cough and feels more tired.