title: The Early Repolarization Pattern: A Consensus Paper.
abstract: The term early repolarization has been in use for more than 50 years. This electrocardiographic pattern was considered benign until 2008, when it was linked to sudden cardiac arrest due to idiopathic ventricular fibrillation. Much confusion over the definition of early repolarization followed. Thus, the objective of this paper was to prepare an agreed definition to facilitate future research in this area. The different definitions of the early repolarization pattern were reviewed to delineate the electrocardiographic measures to be used when defining this pattern. An agreed definition has been established, which requires the peak of an end-QRS notch and/or the onset of an end-QRS slur as a measure, denoted Jp, to be determined when an interpretation of early repolarization is being considered. One condition for early repolarization to be present is Jp ≥0.1 mV, while ST-segment elevation is not a required criterion.
authors.affiliation: Institute of Cardiovascular and Medical Sciences, Electrocardiology Section, University of Glasgow, Glasgow, United Kingdom. Electronic address: peter.macfarlane@glasgow.ac.uk.
authors.forename: Peter W
authors.initials: PW
authors.lastname: Macfarlane
authors.affiliation: Cardiovascular Research Program, Lankenau Institute for Medical Research, Wynnewood, Pennsylvania.
authors.forename: Charles
authors.initials: C
authors.lastname: Antzelevitch
authors.affiliation: Bordeaux University Hospital, LIRYC Institute, INSERM 1045, Bordeaux University, Bordeaux, France.
authors.forename: Michel
authors.initials: M
authors.lastname: Haissaguerre
authors.affiliation: Medical Research Center Oulu, Oulu University Central Hospital, and University of Oulu, Oulu, Finland.
authors.forename: Heikki V
authors.initials: HV
authors.lastname: Huikuri
authors.affiliation: Inria Bordeaux Sud-Ouest, 33405 Talence cedex, France.
authors.forename: Mark
authors.initials: M
authors.lastname: Potse
authors.affiliation: Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
authors.forename: Raphael
authors.initials: R
authors.lastname: Rosso
authors.affiliation: Bordeaux University Hospital, LIRYC Institute, INSERM 1045, Bordeaux University, Bordeaux, France.
authors.forename: Frederic
authors.initials: F
authors.lastname: Sacher
authors.affiliation: Medical Research Center Oulu, Oulu University Central Hospital, and University of Oulu, Oulu, Finland.
authors.forename: Jani T
authors.initials: JT
authors.lastname: Tikkanen
authors.affiliation: Department of Cardiology, University of Maastricht, the Netherlands.
authors.forename: Hein
authors.initials: H
authors.lastname: Wellens
authors.affiliation: Lankenau Institute for Medical Research, Wynnewood, Pennsylvania.
authors.forename: Gan-Xin
authors.initials: GX
authors.lastname: Yan
mesh_terms: D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D014693:Ventricular Fibrillation / Q000175:diagnosis* / Q000503:physiopathology*
keywords: cardiac arrhythmias; electrocardiography; end-QRS notching/slurring; heart conduction system; sudden cardiac death; ventricular fibrillation