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Aortic Stenosis in Dogs

Vet preparing to do heart surgery on a dog

What is Aortic Stenosis?

Aortic stenosis is a congenital disease characterized by ventricular outflow tract obstruction on the left side of the heart. Also referred to as subvalvular aortic stenosis. There are three types of aortic stenosis:

  1. Valvular (present at the valve)
  2. Subvalvular (present below the valve)
  3. Supravalvular (present above the valve)

Breeds Commonly Affected

Aortic stenosis is a congenital disease and it is especially common in Newfoundland dogs. Here is a list of some potential breeds who might suffer from congenital aortic stenosis.



Depending on the severity of the case surgery and cardiac catheterization may be necessary. Some veterinary hospitals around the country are beginning to offer the cutting balloon valvuloplasty. In milder cases beta-blockers and other medications may be used to manage the symptoms.

Cost to Treat: The cost may range from $3,000 to $6,000 for surgery. Follow-up care could make the cost even higher.

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Other Potential Heart conditions in Dogs


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Common Pet Health Problems


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