Emphysema in dogs is a condition where air collects in the respiratory tract, making it difficult to breathe. This build-up of air is often caused by another chronic respiratory disease and results in dogs having a hard time expelling air from the lungs. There are two main forms of emphysema in dogs. Alveolar emphysema happens when the alveoli, or air sacs in a dog’s lungs, become permanently enlarged. Interstitial emphysema happens when air collects in the connective tissue of the lungs. They symptoms and causes of these two types may be similar, and your veterinarian will determine the best course of treatment if your dog is diagnosed with emphysema. Here is what you should know about the symptoms, causes, and treatments for emphysema in dogs.
Symptoms Of Emphysema In Dogs
Some dogs who have emphysema may show no symptoms at first, and when they do occur, they may appear or disappear suddenly. The type of symptoms you see in your dog may vary depending on which organs or tissue are affected by pressure from the build-up of air in the respiratory tract. Here are some common symptoms you may see in dogs who have emphysema.
- Difficulty breathing or increased respiratory rate
- Intolerance to exercise
- Increased heart rate
- Loss of appetite and weight loss
Causes Of Emphysema In Dogs
There are many possible causes of emphysema in dogs. In humans, the main cause of emphysema is exposure to airborne irritants such as cigarette smoke and air pollution. In dogs, however, emphysema usually results from another lung condition, which often results in lesions that allow air to enter the alveoli, but prevent it from being released. Here are a few possible causes of emphysema in dogs.
- Inflammatory lung disease such as chronic bronchitis or chronic obstructive pulmonary disease (COPD)
- Lung parasites
- An internal or skin wound that allows air to move into tissues due to movement of muscles
- Injury to the respiratory tract that causes ulcers or lacerations
- Congenital bronchial hypoplasia, a condition present at birth where airways aren’t developed, especially in Pekingese dogs
Treatments For Emphysema In Dogs
The goal of treatment for emphysema in dogs is to restore normal respiratory function and reduce any immediate symptoms. In cases where a dog is in severe distress because of the condition, they may need to be hospitalized and put in an oxygen cage or given oxygen through a mask or nasal catheter.
If the airway is abstructed, a veterinarian may give the dog a bronchodilator, which is an anti-inflammatory drug that opens the airways. You might have seen these being used by patients with asthma inhalers. If symptoms do not improve, a veterinarian may surgically place thoracostomy tubes into a dog’s chest, which provide suction and remove air accumulation. Damaged lung tissue may need to be surgically removed. Most dogs recover well from the surgery.
During recovery, dogs need rest. Veterinarians may recommend cage rest so that dogs are restricted from physical activity. Some dog owners manage their pets’ symptoms without surgery, though dogs who do not have surgery often suffer from chronic respiratory issues. If your dog is treated for emphysema, follow your veterinarian’s instructions carefully so your dog can recover safely.
Has your dog suffered from emphysema? How did you treat it? Let us know in the comments below!