According to the 2014 AHA/ACC Guideline for the Management of Patients With Valvular Heart Disease, aortic<unk>  is classified into 4 stages based on the valve's anatomy, hemodynamics, and the patients symptoms.
Aortic insufficiency stages
Aortic stenosis stages
Mitral stenosis stages
Mitral regurgitation stages
Tricuspid regurgitation stages
Tricuspid stenosis risk factors
Left ventricular aneurysm risk factors
Aortic stenosis risk factors