DMVD is the most common heart disease in dogs, especially small breeds; progressive heart failure reduces quality of life that modern medication can significantly extend.
Dogs with advanced DMVD experience breathlessness, exercise intolerance, and coughing that cause genuine suffering. Monitoring respiratory rate at home enables early detection of fluid accumulation before it reaches crisis level. The welfare goal is not just extending life but maintaining comfortable, active days - adjusting medications to balance disease control against side effects.