Subaortic stenosis (SAS) is one of the most common congenital heart defects in dogs. Retrospective studies suggest that SAS accounts for ~15-35% of congenital heart disease in dogs, and it is rare in cats.
How long do dogs with subaortic stenosis live?
Most dogs with SAS do not survive beyond age 3 years without treatment, though dogs with milder cases can have normal life spans. A dog with SAS is always predisposed to electrical arrhythmia, heart failure, and infection of the abnormal aortic valve. and gets worse over the first 6-12 months of life.
Is subaortic stenosis genetic in dogs?
Subaortic stenosis is a problem that affects dogs and is rare in cats. It most commonly occurs in large-breed dogs. Subaortic stenosis appears to be genetic in origin; the first signs of it may be present at birth (moderate or severe cases) or may appear in the first year of life (usually milder cases).
How common is subaortic stenosis?
Subvalvular aortic stenosis (SAS), also called subaortic stenosis, is a rare disorder seen in infants. In most cases, it involves the presence of a membrane that is typically muscular just below the aortic valve, which causes a fixed obstruction to blood flow across the left ventricular outflow tract.
Is subaortic stenosis rare?
Subaortic stenosis, also called subvalvular aortic stenosis or SAS, is a rare heart defect that affects 1% of infants who are born with congenital heart defects.
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