Dog Congestive Heart Failure: Welfare and Quality of Life

Congestive heart failure (CHF) is one of the leading causes of death in older dogs, with significant welfare implications throughout its progression.

Key Facts

Approximately 10% of all dogs seen in veterinary practice have some form of heart disease
Cavalier King Charles Spaniels have a near-100% prevalence of mitral valve disease by age 10
CHF causes fluid accumulation in lungs, abdomen, or both, severely affecting breathing
Modern medications like pimobendan can extend survival by months to over a year
Signs of distress include labored breathing, exercise intolerance, coughing, and collapse
Quality of life assessment should guide treatment intensity and end-of-life decisions

Welfare Considerations

Dogs with CHF experience significant suffering from breathing difficulty, fatigue, and reduced mobility. Welfare-centered care involves not just life extension but ensuring each day is comfortable and meaningful. Regular quality-of-life assessments using validated scales help owners and vets make informed decisions. Monitoring respiratory rate at home — ideally under 30 breaths per minute at rest — is a key welfare indicator. When medication no longer controls symptoms and the dog is in persistent distress, compassionate euthanasia prevents prolonged suffering.

What You Can Do

Learn to monitor resting respiratory rate as a daily welfare indicator
Ask your vet about pimobendan and diuretic therapy at CHF diagnosis
Use quality-of-life scales (e.g., HHHHHMM) to assess your dog regularly
Adapt home environment to reduce stairs and exertion
Discuss end-of-life planning early so decisions are made calmly, not in crisis
Support research into canine cardiac disease through breed clubs and veterinary charities