King's College London

Funding Information: Disclosure: BSS is funded by NIHR and received speaker fees from EBR Systems outside of the submitted work. JG has received project funding from Rosetrees Trust outside of the submitted work. JG, MKE and VM have received fellowship funding from Abbott outside of the submitted work. CAR receives research funding and/ or consultation fees from Abbott, Medtronic, Boston Scientific and MicroPort outside of the submitted work. SN has no conflicts of interest to declare. The study was supported by the Wellcome/EPSRC Centre for Medical Engineering (WT203148/Z/16/Z). Acknowledgement: The authors thank Michael Lee and EBR Systems for providing images used in this manuscript. Received: 5 December 2020 Accepted: 31 December 2020 Citation: Arrhythmia & Electrophysiology Review 2021;10(1):45–50. DOI: https://doi.org/10.15420/aer.2020.46 Correspondence: Baldeep Singh Sidhu, School of Biomedical Engineering and Imaging Sciences, St Thomas’ Hospital, London SE1 7EH, UK. E: baldeep.sidhu@kcl.ac.uk Open Access: This work is open access under the CC-BY-NC 4.0 License which allows users to copy, redistribute and make derivative works for non-commercial purposes, provided the original work is cited correctly. Publisher Copyright: © RADCLIFFE CARDIOLOGY 2021. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.