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- Signalment:
- Breeds
- Samoyed
- English Bulldog
- Mastiff
- Fox terrier
- Miniature Schnauzer
- Chihuahua
- Beagle
- Keeshond
- American Cocker Spaniel
- West Highland White Terrier
- Inheritance: Polygenic
- Age: presented as puppies
- Breeds
- History:
- An incidental finding at the time of puppy vaccination is the usual presentation
- Syncope/fatigue/exercise intolerance may occur
- Signs of right heart failure in cases of severe pulmonic stenosis
- Could present as an incidental murmur in an adult
- Physical examination:
- systolic heart murmur with a PMI over the left heart base which may radiate up the neck
- femoral arterial pulse is normal
- signs of right heart failure may be present
- concurrent tricuspid valve insufficiency may be present
- dysrhythmias with pulse deficits may be present