Aortic Stenosis

Aortic Stenosis is a topic covered in the Washington Manual of Medical Therapeutics.

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  • Aortic stenosis (AS) is the most common cause of LV outflow tract obstruction.
  • Other causes of obstruction occur above the valve (supravalvular) and below the valve (subvalvular), both fixed (i.e., subaortic membrane) and dynamic (i.e., hypertrophic cardiomyopathy with obstruction).
  • Aortic sclerosis is thickening of the aortic valve leaflets that causes turbulent flow through the valve and a murmur but no significant gradient; over time, it can develop into AS.

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  • Aortic stenosis (AS) is the most common cause of LV outflow tract obstruction.
  • Other causes of obstruction occur above the valve (supravalvular) and below the valve (subvalvular), both fixed (i.e., subaortic membrane) and dynamic (i.e., hypertrophic cardiomyopathy with obstruction).
  • Aortic sclerosis is thickening of the aortic valve leaflets that causes turbulent flow through the valve and a murmur but no significant gradient; over time, it can develop into AS.

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