Why the study?
Cardiopulmonary exercise testing with exercise echocardiography can unmask symptoms and evaluate contractile reserve in severe aortic stenosis; this study aimed to assess the prevalence of reduced exercise tolerance and identify predictors of adverse cardiovascular events.
Does cardiopulmonary exercise testing and exercise echocardiography predict exercise tolerance and unplanned hospitalisation in asymptomatic patients with severe aortic stenosis?
Design
Surveillance cohort study
Authors
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May aid risk stratification in asymptomatic severe AS; leaves open prospective validation.
Does cardiopulmonary exercise testing and exercise echocardiography predict exercise tolerance and unplanned hospitalisation in asymptomatic patients with severe aortic stenosis?
Zalen et al. (2019) studied this question.
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