1.2 - Dog Conditions

Signs of Heart Disease in Dogs: What Every Pet Owner Needs to Know

Are you a dog parent and don’t know anything about heart disease in dogs? That needs to change.

Heart disease in dogs is a prevalent condition and often develops insidiously, remaining undetected until it reaches a more advanced stage. 

As devoted guardians of our canine companions, understanding the potential health challenges they might face is paramount for ensuring their well-being and providing them with the best possible care. 

Recognizing the subtle signs of heart disease in dogs in its early stages can be a game-changer, as it allows for timely intervention that can slow the disease’s progression. 

This article will delve into canine heart disease, exploring its various forms, the critical early indicators to watch for, and how proactive health monitoring tools like Maven Pet can be instrumental in early detection and management, empowering you to protect your furry friend’s health and improve pet wellness.

What is Heart Disease in Dogs?

Canine heart disease encompasses a spectrum of conditions that compromise the heart’s ability to function effectively as the body’s central pump. 

These conditions can be present from birth (congenital), such as heart murmurs or valve defects, or develop over time (acquired). 

Acquired heart disease is more common, particularly in older dogs, and often involves degenerative valve disease ( the heart valves thicken and become leaky) or dilated cardiomyopathy (the heart muscle weakens and enlarges). 

Understanding the specific type of heart disease is crucial for determining the appropriate treatment and prognosis.

It’s vital to differentiate between heart disease and congestive heart failure (CHF). Heart disease refers to the underlying condition, while CHF is a severe stage where the heart can’t pump enough blood, leading to fluid buildup in the lungs and abdomen. 

Early Signs of Heart Disease in Dogs

Detecting the early signs of heart disease in dogs requires keen observation. Subtle symptoms can be easily overlooked. Here are some key indicators:

  • Persistent Coughing: Often a dry, hacking cough, worse at night or after exercise, indicating fluid buildup in the lungs. For example, you might notice your dog coughing more after their evening walk or first thing in the morning.
  • Lethargy and Weakness: Reduced energy levels, reluctance to exercise, and increased sleeping. Here, your dog may be getting tired more quickly on walks they used to enjoy or less enthusiastic about playing.
  • Difficulty Breathing or Excessive Panting: Shortness of breath even at rest, rapid breathing, or panting more than usual in cool environments. Pay attention to how much effort your dog is putting into breathing.
  • Decreased Appetite and Weight Loss: Loss of interest in food and unintentional weight loss are concerning signs as well. 
  • Fainting or Collapsing: Brief episodes of loss of consciousness can be alarming and require immediate attention.
  • Swollen Belly: A noticeable enlargement of the abdomen, indicating fluid accumulation. The belly might feel firm or distended to the touch.

Recognizing even one of these symptoms of heart problems in dogs warrants a vet consultation. Don’t wait for multiple symptoms to appear or for them to become severe.

The Progression of Heart Disease and When to Seek Help

Heart disease often progresses gradually. Early, mild signs can worsen over time, leading to CHF. Reduced cardiac output causes fluid buildup and poor circulation, impacting other organs. 

Seek immediate veterinary attention for sudden and severe breathing difficulties, repeated fainting episodes, or rapid abdominal swelling. These are signs of a critical stage. 

Regular vet check-ups are also crucial, especially for breeds predisposed to heart conditions like Cavalier King Charles Spaniels, Boxers, and Dobermans.

How Maven Pet Helps Detect Heart Health Issues Early

Maven Pet offers a proactive approach to monitoring your dog’s health, potentially detecting subtle changes indicative of early heart disease. This 24/7 tracking system tracks the following key indicators:

  • Activity Levels: Maven Pet tracks your dog’s daily movement. A decrease in activity can be an early sign of fatigue related to heart issues. The monitor helps you detect a pattern of your dog being less active throughout the day.
  • Rest Patterns: It monitors sleep duration and restlessness. Changes can indicate discomfort or underlying issues affecting sleep quality, which can be linked to heart problems.
  • Respiratory Rate: It tracks breaths per minute while your dog is resting. An elevated resting respiratory rate is a significant early sign of heart problems, especially as it progresses towards CHF. Maven Pet helps establish your dog’s baseline and alerts you to significant deviations. For example, a consistently increasing resting respiratory rate over a few days could be an early warning sign.

Maven Pet
Health Monitor

#1 Vet-recommended pet monitor! Tracks activity, rest, respiratory rate, water intake, scratching and other health indicators 24/7

By continuously monitoring these indicators, Maven Pet empowers you to identify subtle changes that might otherwise go unnoticed, allowing you to reach out to the vet early on and potentially improving treatment outcomes and the dog’s overall quality of life.

A Proactive Approach to a Healthy Heart

Recognizing the signs of heart disease in dogs is crucial for responsible pet ownership. 

Early detection, combined with veterinary care, significantly impacts the disease’s course. 

Proactive monitoring with Maven Pet is a powerful ally in early detection and timely medical intervention. Get a pet smart collar to gain valuable insights and ensure a longer, healthier life for your cherished companion. 

By being vigilant and utilizing available tools, you can play a vital role in protecting your dog’s heart health.



Maven Pet focuses on improving the quality of life of our pets with technology, using artificial intelligence (AI) to enable proactive pet care. By accurately collecting and monitoring pet data 24/7 and flagging any irregularities, Maven Pet empowers pet parents and veterinarians to stay ahead of potential health issues, ensuring the well-being and longevity of our beloved companions.

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