Breed Health Score
cardiac

Subaortic stenosis in dogs

A heart defect where the area just below the aortic valve is narrowed, forcing the heart to work harder to pump blood to the body. It can cause tiredness, fainting and, in severe cases, sudden collapse or death.

2 of the 155 breeds we track are commonly associated with Subaortic stenosis, including Samoyed, Bullmastiff. Across these breeds median lifespans range from 10.2 to 13.1 years.

Subaortic stenosis in dogs: quick facts

Type
cardiac condition
Breeds affected
2 of the 155 breeds we track
Severity (as scored)
Major-welfare or life-threatening

Plain-English definitions of these terms are on the glossary. On the Breed Health Score, Subaortic stenosis is weighted as a major-welfare or life-threatening condition, so breeds it commonly affects carry a larger hereditary-burden deduction. This describes how our data weights the condition, not a diagnosis.

Breeds commonly associated with Subaortic stenosis (2), ranked by health score

76
Samoyed13.1 yr · medium
38
Bullmastiff10.2 yr · giant

Related cardiac conditions

Dilated cardiomyopathyMitral valve diseaseHeart murmursARVC (cardiomyopathy)Aortic stenosisCardiac diseaseJuvenile dilated cardiomyopathyMitral valve dysplasia

Products that may help

General care products for dogs prone to Subaortic stenosis. Browse on Amazon → Ad

Note. Breed associations are compiled from RVC VetCompass / AKC / PDSA and are indicative, not a diagnosis or veterinary advice. Browse all conditions or the breed directory.