Dilated cardiomyopathy is a serious heart disease affecting large and giant dog breeds, causing progressive heart failure, reduced quality of life, and premature death.
DCM progressively reduces dogs' capacity to exercise, enjoy play, and engage fully with their environment. As heart function declines, even mild exertion causes fatigue and breathlessness. Congestive heart failure - when fluid accumulates in lungs - causes severe respiratory distress. Dogs may be unable to sleep comfortably without breathing difficulty. The unpredictability of sudden cardiac death adds to owner anxiety, indirectly affecting the dog's emotional environment. Well-managed DCM with medications can extend comfortable life significantly, making early detection critical.