Living with a dog diagnosed with congestive heart failure (CHF) is an emotional journey filled with concerns about their comfort and quality of life. As pet parents, one of the most pressing questions we ask ourselves is whether our furry companions are suffering. This article aims to provide clear insights into the experience of dogs with CHF and how we can best support them through this challenging condition.
What Exactly is Congestive Heart Failure in Dogs?
Congestive heart failure occurs when a dog’s heart cannot pump blood effectively throughout the body. This causes blood to back up into the lungs and fluid to accumulate in body cavities, which restricts the heart and lungs and prevents proper oxygen flow.
The two most common causes of CHF in dogs are
- Mitral valve insufficiency (MVI): This happens when the mitral valve between the left atrium and ventricle leaks
- Dilated cardiomyopathy (DCM): When heart chambers enlarge and lose their ability to contract properly
Depending on which side of the heart is affected dogs may experience different symptoms
- Right-sided CHF: Fluid accumulates in the abdomen and limbs
- Left-sided CHF: The more common type, where fluid builds up in the lungs, causing coughing and breathing difficulties
The Stages of Congestive Heart Failure
CHF progresses through four distinct stages
| Stage | Description | Common Symptoms |
|---|---|---|
| Stage A/1 | High-risk for CHF but no symptoms or heart changes | Often undetectable without veterinary examination |
| Stage B/2 | Heart murmur (B1) or structural changes (B2) begin | Shortness of breath, panting, lethargy during exercise |
| Stage C/3 | Clinical signs appear with heart murmur and structural changes | Coughing, wheezing, difficulty breathing even on short walks |
| Stage D/4 | Advanced CHF that doesn’t respond to standard therapy | Breathing difficulty even at rest, fluid accumulation, reluctance to walk |
Do Dogs with CHF Actually Suffer?
The honest answer is that yes, dogs with congestive heart failure can experience suffering, particularly in the advanced stages of the disease. However, the degree of discomfort varies widely depending on:
- The stage of the disease
- How well the condition is being managed
- Individual differences between dogs
In early stages, many dogs may show minimal signs of discomfort. As the disease progresses to Stage C and D, dogs typically experience:
- Physical discomfort from symptoms like:
- Persistent coughing
- Labored breathing
- Fluid accumulation in the abdomen
- Reduced ability to exercise or play
- Psychological distress from:
- Anxiety related to difficulty breathing
- Inability to engage in normal dog activities
- Disrupted sleep patterns
Dogs in Stage 4 (or Stage D) may show signs of significant suffering, including:
- Difficulty breathing even when resting
- Frequent coughing episodes
- Bluish-grey colored gums
- Fainting when standing
- Reluctance or inability to walk
- Difficulty sleeping or resting on their side
- Preference for sitting upright to ease breathing
How Can We Manage CHF and Reduce Suffering?
While CHF isn’t reversible in most cases, there are several approaches to managing the condition and improving your dog’s comfort:
Medical Management
Most veterinarians will prescribe a combination of medications:
- Diuretics: To remove excess fluid buildup
- ACE inhibitors: To improve symptoms
- Vasodilators: To relax blood vessels
- Positive inotropes: To strengthen heart contractions
Lifestyle Modifications
- Moderate exercise: Gentle, shorter walks based on your dog’s tolerance
- Weight management: Maintaining healthy weight reduces strain on the heart
- Dietary adjustments: Low-sodium diets may be recommended
- Environmental modifications: Air purifiers can help some dogs breathe easier
Comfort Measures
- Elevated sleeping areas: Helps dogs breathe more comfortably
- Regular monitoring: Check your dog’s breathing rate and effort
- Consistent routine: Reducing stress and anxiety
Monitoring Quality of Life
When managing a dog with CHF, regularly assessing quality of life becomes crucial. Work with your vet to consider these factors:
- Can your dog breathe comfortably without struggling?
- Does your dog still enjoy meals?
- Can your dog interact positively with family members?
- Is your dog able to eliminate with dignity and rest comfortably?
Many veterinarians recommend using quality of life scales, such as those provided by organizations like Lap of Love:
- Daily assessment tools
- Pet quality-of-life scales
- Dr. Alice Villalobos’ Quality of Life Scale
When Is It Time to Consider Euthanasia?
This is perhaps the hardest question pet parents face. The decision to euthanize a dog with CHF is deeply personal and depends on many factors:
- Your dog’s quality of life
- The progression of symptoms
- Your ability to provide care
- Input from your veterinary team
Some signs that might indicate it’s time to consider humane euthanasia include:
- Persistent labored breathing despite treatment
- Inability to rest comfortably
- Reluctance to eat or drink
- More bad days than good
I want to emphasize that there is no shame in letting your pet go when diagnosis is reached, nor is there shame in supporting your pet until there are more bad days than good. You know your dog best, and your veterinary team is there to support both of you.
Common Complications of Advanced CHF
As CHF progresses, several complications may arise, including:
- Pulmonary edema (fluid in the lungs)
- Ascites (swollen belly from fluid)
- Gastrointestinal issues
- Weight and muscle mass loss
- Electrolyte imbalances
- Kidney problems
Regular check-ups with your vet can help monitor for these complications, some of which may only be detected through lab work.
Real Talk: Our Experience with CHF Dogs
I’ve personally cared for several dogs with CHF in our clinic, and I can tell you that each case is unique. Some dogs respond remarkably well to medication and lifestyle changes, maintaining good quality of life for months or even years after diagnosis.
We’ve seen dogs with mild CHF who continued to enjoy walks, playtime, and family activities with minimal signs of distress. On the other hand, we’ve also cared for dogs in advanced stages who struggled significantly despite our best interventions.
What’s most important is to maintain open communication with your veterinarian about your dog’s symptoms and quality of life. Together, you can make informed decisions about care adjustments and when it might be time to consider humane euthanasia.
Final Thoughts
The journey with a dog who has CHF isn’t easy, but understanding their experience can help us provide better care. While dogs with CHF do experience discomfort, especially in advanced stages, proper management can significantly improve their quality of life.
Remember that your veterinary team is your best resource for navigating this condition. Regular check-ups, honest discussions about your dog’s symptoms, and a willingness to adjust care plans as needed will help ensure your dog remains as comfortable as possible.
Most importantly, cherish the time you have with your furry friend. Even dogs with CHF can still experience joy, comfort, and the special bond they share with you.
Do you have experience caring for a dog with congestive heart failure? What approaches have worked best for managing their comfort? Share your insights in the comments below to help other pet parents on this journey.

Recovery and Management of Congestive Heart Failure in Dogs
Recovery and management will vary based on the cause of the CHF and should be tailored to your specific dog by your veterinarian and/or veterinary cardiologist. However, most dogs will be able to enjoy a moderate level of exercise and activity without strict restrictions.
One important aspect of at-home care in left-sided congestive heart failure dogs is monitoring their respiratory rate, which is the number of breaths per minute. The respiratory rate can indicate the degree of fluid accumulation in the lungs and help determine if you need to see your veterinarian.
As a rule of thumb, a dog at rest should have a respiratory rate of less than 30 breaths per minute. Be sure to count in and out as one breath and be sure the dog is at rest or sleeping when you count. Do not try to count its respiratory rate immediately after physical activity.
Your veterinarian will also monitor periodic chest X-rays to assess the heart size as well as any evidence of fluid in the lungs. Blood work, including kidney values and electrolytes, will likely be recommended every three to six months to ensure your pet is tolerating their heart medication. The veterinary cardiologist will likely want to re-check an echocardiogram every six to 12 months to assess changes in the heart and make adjustments in medication as needed.
There is no cure for congestive heart failure in dogs, but with diligent management and daily medications, your dog can have a good quality of life and likely extend its survival time. However, once stage D congestive heart failure develops, the median life range is nine months.
How can I help my dog with congestive heart failure?
The pet parent should take their dog to the local emergency vet immediately if congestive heart failure or respiratory distress is suspected.
Heart Failure in Dogs: 3 NEW Holistic Treatments
FAQ
What is congestive heart failure in dogs?
Congestive heart failure (CHF) is a serious and potentially life-threatening condition that affects dogs of all ages and breeds. It occurs when the heart is unable to pump enough blood to meet the body’s needs, leading to a buildup of fluid in the lungs, liver, and other organs.
Is there a cure for congestive heart failure in dogs?
While there is no cure for congestive heart failure, there are several treatment options available to manage the condition and improve the dog’s quality of life. The treatment plan may include: Palliative care is an essential component of managing the final stage of CHF in dogs.
Are senior dogs prone to congestive heart failure?
As our canine companions age, they become more susceptible to various health issues, with congestive heart failure (CHF) being one of the most common and serious conditions affecting senior dogs.
How do you know if a dog has congestive heart failure?
As a dog’s congestive heart failure progresses, there are several signs that may indicate that they are nearing the end of their life. One of the most significant signs is a decline in their overall quality of life, characterized by a decrease in appetite, weight loss, and a lack of interest in activities they once enjoyed.
What happens if a dog has heart failure?
The end stages of heart failure in dogs are the hardest for dog owners to endure. When the heart fails to pump as effectively as it should, a cascading chain of events takes place. While the body can try to compensate, and medications can help reduce strain on the heart, this will be effective only up to a certain extent.
What are the stages of congestive heart failure in dogs?
There are several stages of congestive heart failure: Stage A: The dog is high-risk for CHF, but has no symptoms and no changes to the heart. Stage B1: The dog has a heart murmur but no other signs. Stage B2: The dog has a heart murmur in addition to structural changes to the heart, but no clinical signs.
What is the end stage of congestive heart failure in dogs?
End-stage congestive heart failure in dogs (Stage 4 CHF) is a serious condition characterized by a severe inability of the heart to pump blood effectively, leading to symptoms like difficulty breathing even at rest, persistent coughing, a bluish-gray color in the gums, fainting, and swollen limbs or abdomen (ascites) due to fluid buildup. At this stage, symptoms are severe and may not respond to medication, often prompting a discussion with your veterinarian about palliative care or humane euthanasia to prevent further suffering.
Is my dog in pain with congestive heart failure?
How do I know when it’s time to put my dog down with congestive heart failure?
When your dog is in the end stages of congestive heart disease you will notice that your pup has difficulty breathing even while resting, experiences frequent bouts of coughing, develops bluish-grey color gums, possibly faints when standing and will become reluctant to walk.
How long does a dog live with congestive heart failure?