Journal Pre-proof Modern Mapping and Ablation Techniques to Treat Ventricular Arrhythmias From the Left Ventricular Summit and Interventricular Septum Jorge Romero, MD, Kalayanam Shivkumar, MD-PhD, Miguel Valderrabano, MD, Juan Carlos Diaz, MD, Isabella Alviz, MD, David Briceno, MD, Andrea Natale, MD, Luigi Di Biase, MD-PhD. PII: S1547-5271(20)30358-1 DOI: https://doi.org/10.1016/j.hrthm.2020.04.026 Reference: HRTHM 8364 To appear in: Heart Rhythm Received Date: 19 February 2020 Revised Date: 4 April 2020 Accepted Date: 10 April 2020 Please cite this article as: Romero J, Shivkumar K, Valderrabano M, Diaz JC, Alviz I, Briceno D, Natale A, Di Biase L, Modern Mapping and Ablation Techniques to Treat Ventricular Arrhythmias From the Left Ventricular Summit and Interventricular Septum, Heart Rhythm (2020), doi: https://doi.org/10.1016/ j.hrthm.2020.04.026. This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2020 Published by Elsevier Inc. on behalf of Heart Rhythm Society.