Usefulness of Bedside Tissue Doppler Echocardiography and B‐Type Natriuretic Peptide (BNP) in Differentiating Congestive Heart Failure from Noncardiac Cause of Acute Dyspnea in Elderly Patients with a Normal Left Ventricular Ejection Fraction and Permanent, Nonvalvular Atrial Fibrillation: Insights from a Prospective, Monocenter Study

Abstract

Bedside tissue Doppler echocardiography and BNP provide useful additional diagnostic information over the clinical judgment for the emergency diagnosis of HFNEF in elderly patients with permanent, nonvalvular atrial fibrillation.