The management of symptomatic patients with moderate Aortic Stenosis (AS) remains challenging and tests that would give more definitive answers are needed. The value of increase in Aortic Valve mean Gradient (AVMG), lack of change in Aortic Valve area (AVA) and calculation of valve compliance/resistance during stress echo (SE) in the symptomatic moderate AS population prognostication has to the investigators knowledge not been examined before. Similarly the additive value of myocardial blood flow reserve (MBFR), Computed Tomography (CT) calcium score, speckle tracking echocardiography, carotid ultrasonography, and N-Terminal pro B- type natriuretic peptide B (NT-proBNP) in the prognostication of this population group especially in combination with SE remains unclear.
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Death (cardiovascular/all cause)
Timeframe: between baseline and two years
Hospitalisation for heart failure
Timeframe: between baseline and two years
Aortic valve replacement (TAVI or surgical AVR)
Timeframe: between baseline and two years