What is Pulmonic Stenosis in Dogs?

Some heart conditions that our beloved dogs struggle with directly impact their respiratory systems. Pulmonic stenosis is one of these conditions, as it is a congenital heart defect that occurs when the pulmonary valve, located between the heart’s right ventricle and the pulmonary artery, narrows, thus restricting blood flow to the lungs.

We at Coast to Coast Cardiology are well-versed in this condition and are here to illuminate any questions that you, as a concerned pet owner, may have.

Symptoms of Pulmonic Stenosis

The degree of pulmonic stenosis can vary widely, and symptoms may not always be obvious. However, some common signs to watch for include:

  • Lethargy or fatigue
  • Difficulty breathing, especially during exercise
  • Exercise intolerance
  • Fainting or collapse
  • Abnormal heart sounds (heard by a veterinarian)

Diagnosis and Treatment

Diagnosing pulmonic stenosis requires a thorough veterinary examination, including listening to the heart with a stethoscope. However, additional tests, such as chest X-rays, electrocardiograms (ECGs), and echocardiograms, are necessary to confirm the diagnosis and assess the magnitude of the condition.

Treatment options for pulmonic stenosis depend on the severity of the condition and the dog’s overall health. Mild cases may be managed with regular monitoring and the prescription of veterinary approved medication (such as ACE inhibitors, Beta-blockers, or diuretics), while more serious cases may require surgical intervention to widen the pulmonary valve.

Living with a Dog with Pulmonic Stenosis

Many dogs without severe pulmonic stenosis can lead relatively normal lives with proper care and management. Regular veterinary check-ups are still essential to monitor the condition and adjust treatment as needed. However, exercise should be moderate, as avoiding strenuous activities can keep stress off the heart and lungs.

While there’s no cure for pulmonic stenosis, early diagnosis and appropriate management can significantly improve a dog’s quality of life. If you suspect your dog may have pulmonic stenosis, it’s important to consult with a veterinarian.

Prognosis for Dogs with Pulmonic Stenosis

The prognosis for dogs with pulmonic stenosis varies greatly depending on the severity of the condition.  

  • Mild cases: Dogs with mild pulmonic stenosis may not experience any symptoms and can live a normal lifespan.  
  • Moderate cases: These dogs may develop symptoms like exercise intolerance or fainting, but with proper management and surgical interventions like balloon valvuloplasty, many of them can live normally.
  • Severe cases: In these cases, dogs are at higher risk for heart failure, arrhythmias, and sudden death. While treatment options are available, the prognosis is more guarded.  

Concerned about your dog’s heart health? Come see us at Coast to Coast Cardiology! We have ten different locations, but we deliver on one goal no matter what: treating the patient, not just the signs. To schedule a consultation, contact us online or call 844-582-3827 today!