Heart Disease: Subvalvular Aortic Stenosis (SAS)
Subvalvular aortic stenosis (SAS), the most common congenital heart disease in Golden Retrievers, Newfoundlands and Rottweilers, is a troublesome disease. Known for being highly complex genetically and therapeutically, SAS has a history of taking the lives of seemingly healthy dogs, robbing them of a chance for treatment in their prime.
Part of the problem is that severely affected dogs may not show signs of disease. Additionally, owners may not know or recognize their dogs’ decreased exercise ability or the possibility of their fainting or collapsing from excitement. When these dogs die suddenly, their owners are left pondering the cause.
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