Cor Triatriatum: A Congenital Heart Condition in Pets

There are many types of congenital heart conditions in dogs and cats, but today, we at Coast to Coast Cardiology will discuss one that affects both pets. Cor Triatriatum (or “heart with three atria” in Latin) is a rare heart defect pets are diagnosed with early in life, and it can present with varying degrees of severity. Let’s learn more.

Understanding Cor Triatriatum

The right atrium is one of the heart’s four chambers, and it is responsible for receiving blood from the body. In dogs and cats with cor triatriatum, an extra membrane, or septum, partially divides this chamber. This abnormal structure creates an obstruction to blood flow, thereby increasing pressure on the right side of the heart.

If this membrane is perforated, it can still allow some blood flow, which makes it a partial obstruction. However, pets with a membrane that allows no blood to pass have a severe obstruction, leading to a more serious condition.

Symptoms of Cor Triatriatum

  • Lethargy or fatigue
  • Difficulty breathing, especially during exercise
  • Exercise intolerance
  • Coughing
  • Swollen abdomen
  • Bluish tint to the gums or tongue

These symptoms can also be associated with other heart conditions, so a thorough veterinary examination is crucial for diagnosis.

Diagnosis and Treatment

Diagnostic tests, such as echocardiograms, electrocardiograms, and chest X-rays, can help confirm the diagnosis and assess the severity of the cor triatriatum.

Treatment for cor triatriatum often involves surgery to remove the membrane and restore blood flow. However, the decision to proceed with surgery depends on the magnitude of the blockage, the pet’s overall health, and the risks associated with the procedure.

Medical management may be considered for mild cases, which includes ACE inhibitors and beta blockers to reduce the workload on the heart and maintain its rhythm.

Living with Cor Triatriatum

While there’s no cure for this condition, early diagnosis and appropriate treatment can significantly improve a pet’s quality of life. Owners should be aware of potential complications and be prepared to provide necessary care.

Want to check on your pet’s heart health? Visit 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 book an appointment, contact us online or call 844-582-3827 today!