Why Senior Dogs Are More Prone to Heart Disease

1 Why Senior Dogs Are More Prone to Heart Disease

1. Why middle-aged and senior dogs are prone to heart disease

The heart acts as the pump that delivers blood to every part of the body. As a dog ages, however, its bodily functions gradually decline and the heart’s pumping ability weakens, so blood can no longer be sent efficiently to the lungs and the rest of the body. Circulation suffers, leading to reduced blood flow and congestion.

In large breeds, a weakening heart causes the heart to enlarge and blocks blood from entering the body effectively. This type of heart disease usually appears in dogs weighing around 55 lb, such as Dobermans and Boxers. The Doberman is among the breeds most affected by heart disease.

In small breeds, the more significant heart problem is congestive heart failure, usually caused by heart valve disease. Small dogs such as Chihuahuas and Pomeranians are prone to congestive heart failure.

2. Symptoms of heart disease in dogs

1) Frequent coughing

A cough caused by heart disease typically comes after exercise or at night, and unlike an ordinary cough it is more of a dry cough. If a check-up reveals a heart murmur along with coughing, the owner should pay close attention.

2) Difficulty breathing

As dogs age and heart and lung function decline, older dogs usually need to breathe faster to get enough oxygen. A faster breathing rate in hot weather or right after exercise can be normal, but if a dog pants while resting quietly, the owner should wonder whether the heart is the problem.

3) Easy fatigue

When the heart is compromised, its efficiency drops and the body gets too little oxygen, so the dog’s stamina falls noticeably and it tires easily.

4) A swollen belly

Because circulation is abnormal, fluid builds up in the dog’s abdomen. The belly may bloat even when appetite is poor.

5) Fainting

If a dog suddenly collapses, take it to the vet as soon as possible, because this is very likely a serious health problem. With heart disease, the condition is already advanced at that point.

We hope this helps you understand canine heart disease a little better. If you still have questions, feel free to ask below.