Prognostic Value of N-Terminal Pro-form B-type Natriuretic Peptide in Patients With Moderate Aortic Stenosis

•The prognostic value of serum NT-proBNP in severe aortic stenosis is well established.•The role of NT-proBNP in patients with moderate aortic stenosis is unknown.•This study shows that NT-proBNP was independently associated with worse prognosis.•NT-proBNP may be incorporated in the risk stratification of moderate aortic stenosis.