ElectrocardiographyEarly repolarization an evolving concept for the past 70 yearsBiasco, Luigi; Cristoforetti, Yvonne; De Backer, Ole; Castagno, Davide; Giustetto, Carla; Orzan, Fulvio; Gaita, FiorenzoAuthor Information aDivision of Cardiology, Department of Medical Science, Città della Salute e della Scienza Hospital, University of Turin, Turin, Italy bThe Heart Centre, Rigshospitalet, Copenhagen, Denmark Correspondence to Luigi Biasco, Division of Cardiology, Department of Medical Science, Città della Salute e della Scienza Hospital, University of Turin, C.so Bramante 88, 10126. Torino, Italy Tel: +39 011 6335571; fax: +39 011 6336769; e-mail: [email protected] Received 11 November, 2014 Revised 7 January, 2015 Accepted 5 February, 2015 Journal of Cardiovascular Medicine: January 2016 - Volume 17 - Issue 1 - p 4-10 doi: 10.2459/JCM.0000000000000276 Buy Metrics Abstract For more than 70 years, early repolarization has been considered to be a common normal variant. In the general population, the prevalence ranges between 5 and 13%, and in athletes, a rising trend is observed from 20 to 90%. Nevertheless, from the latter half of the 1990s, a growing number of case reports, series, observational and prospective studies reported that the presence of various electrocardiographic patterns attributed to early repolarization may constitute a potential marker for the increased risk of sudden death in otherwise normal individuals, casting a dark shadow on this ECG peculiarity. This review provides a historical summary of the evolution of the concept of early repolarization from its original description to the latest works and a guide to help physicians in evaluating individuals with this common electrocardiographic pattern. © 2016 Italian Federation of Cardiology. All rights reserved.