Assessment Regarding the Safety of Stress Cardiovascular Magnetic Resonance in Patients With Moderate to Severe Aortic Stenosis.

AS is often associated with coronary artery disease (CAD) and the most common form of valvular heart disease in elderly patients. Significant CAD was found in 10.6% of patients with severe AS in our previous study.2) Evaluation of the functional significance of CAD in patients with severe AS is clinically relevant for planning a potential percutaneous coronary intervention or coronary artery bypass grafting (CABG). However, evidence regarding the role of stress testing in severe AS is lacking. Guidelines recommending testing may uncover symptoms and is recommended for risk stratification of asymptomatic patients with severe AS. Exercise echocardiography provides additional prognostic information based on assessment of the increase in mean pressure gradient and change in left ventricular (LV) function.3)