Aspiration pneumonia is a condition in which the lungs become inflamed due to inhalation, or aspiration, of a foreign substance. This usually occurs after a dog vomits and inhales a portion of the regurgitated material, and it happens more commonly in young puppies. Preventing aspiration pneumonia is easier than treating it, but if notice your dog having difficulty breathing soon after vomiting, contact a veterinarian right away.

The signs of aspiration pneumonia include:

In the majority of cases, pneumonia is caused by a bacterial infection. Aspiration pneumonia occurs when a dog inhales fluid or other materials into the respiratory tract, leading to inflammation in the airways. Though a dog may inhale foreign material when vomiting, the act of vomiting itself does not directly lead to aspiration pneumonia. The condition only occurs when regurgitated materials are inhaled, which may be made more likely by a variety of reasons, including:

Aspiration pneumonia is easier to prevent than to treat. Most veterinarians will recommend that a dog fasts prior to surgery to minimize the risk of regurgitation during anesthesia. When administrating oral medication, make sure that the medicine is given only at the speed that your dog can swallow to prevent inhalation into the respiratory tract. Young puppies, as well as dogs that are fed with a feeding tube, are at higher risk of developing the condition.

When you bring your dog to the veterinarian, be prepared to provide information about your dog’s signs and recent activity. The veterinarian will need a complete history in order to better diagnosis your dog’s condition. If your dog has vomited or regurgitated recently, let the veterinarian know, as many of the clinical signs associated with aspiration pneumonia are nonspecific. Knowing that your dog may have inhaled a foreign substance will help determine the necessity of a chest radiograph.

The veterinarian may perform several tests, including a physical examination and blood work, as part of the initial visit. This may help eliminate the possibility of other conditions, though aspiration pneumonia itself is typically diagnosed with thoracic radiography. A chest X-ray can confirm the presence of inflammation in the lungs. If your dog is stable enough, fluid can be taken from the lungs with a tracheal wash or endotracheal lavage, which will identify the bacteria present in the respiratory tract.

Treatment for aspiration pneumonia contains several components, the majority of which are focused more on support than on addressing the condition itself. Antibiotics will be administered to fight any bacterial infection present, with broad spectrum medication given in cases where a culture could not be obtained. Depending on your dog’s condition, the veterinarian may recommend different treatment, with potential components including:

In some cases, your dog will need to be hospitalized until he is stable enough to transition to homecare. If there is an underlying cause for the aspiration pneumonia, such as a cleft palate or a tumor, that condition will also need to be addressed in order to prevent a reoccurrence of pneumonia. The prognosis for aspiration pneumonia is generally good but varies depending on the cause of the vomiting.

Once your dog has been released from the hospital, you will need to keep him quiet and calm during the recovery period. Be sure to outfit an area for your dog to rest comfortably, and make sure he has access to fresh water. You will need to monitor your dog’s cough, as well as watch for any changes in other clinical signs.

Depending on the extent of the pneumonia, you may need to bring your dog back to the veterinarian for a follow-up exam. The veterinarian may wish to conduct another chest radiograph to ensure that the inflammation is resolving and that your dog is recovering properly. If the vomiting was caused by an underlying condition, you might need to address the cause so that the aspiration pneumonia does not recur.

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Each case of aspiration pneumonia is different as each can have a different cause. If there are any underlying causes of the vomiting (i.e. cleft palate, tumor etc.) then the cause would be treated as well. The veterinarian may prescribe antibiotics in order to treat the aspiration pneumonia if infection presents itself. Antibiotics can cost anywhere between $50 and $150. Fluid therapy may be administered if your dog is severely dehydrated from the vomiting. Your dog may also need oxygen support which can cost $120 to $140. The veterinarian may need to hospitalize your dog for observation and to ensure your dog is progressing. If your dog is  hospitalized, the total cost of the above treatment options can run between $500 and $2000. However, without knowing the cause, it is difficult to know the complete total cost.