title: Powerlessness of a Number: Why Left Ventricular Ejection Fraction Matters Less for Sudden Cardiac Death Risk Assessment.
authors.affiliation: From the Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD. kwu@jhmi.edu.
authors.forename: Katherine C
authors.initials: KC
authors.lastname: Wu
authors.affiliation: From the Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD.
authors.forename: Hugh
authors.initials: H
authors.lastname: Calkins
mesh_terms: D058406:Cardiac Resynchronization Therapy; D016757:Death, Sudden, Cardiac; D017147:Defibrillators, Implantable; D006333:Heart Failure; D006801:Humans; D018570:Risk Assessment; D013318:Stroke Volume; D016277:Ventricular Function, Left
keywords: Editorials; cardiac resynchronization therapy; cardiomyopathy; heart failure; phenotype; sudden cardiac death