1. Junjie Zhang et al. JACEP 2017;j.jacep.2016.12.017
Epicardial J-Wave Distribution and Magnitude Abnormal epicardial electrograms (EGMs) with a J-wave that resembles the early repolarization (ER) pattern (terminal-QRS notch or slurring) on the surface electrocardiogram are observed in ER syndrome (ERS) patients, but not seen in normal subjects. Example maps of epicardial J-wave magnitude in 3 ERS patients are shown. The maps are shown in anterior view and inferior view for each subject. The locations of epicardial J waves are ER-11: lateral and apical LV; ER-14: lateral and inferior LV; ER-20: lateral and inferior LV. Inset: representative EGMs with a J-wave (QRS only) in ERS patients (B to D) and EGMs from corresponding locations in the normal control subject (A). Twelve-lead ECGs for ERS patients are shown to the right of the epicardial maps. A red asterisk indicates the presence of ER pattern. LA = left atrium; LV = left ventricle; RA = right ventricle; RV = right ventricle.
Junjie Zhang et al. JACEP 2017;j.jacep
American College of Cardiology Foundation