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. 2019 Sep 3;54(19):1142–1148. doi: 10.1136/bjsports-2018-100529

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© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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Premature ventricular beats with a left bundle branch block-like pattern of the ectopic QRS and underlying right ventricular myocardial disease. Premature ventricular beats with a left bundle branch block/intermediate axis pattern, associated with ECG abnormalities (low QRS voltages in the limb leads and negative T-waves in V1–V3 in non-ectopic beats), which increased during exercise testing in a 34-year-old female runner (A). Cine cardiac magnetic resonance sequences (four-chamber view) revealed right ventricular dilation with hypertrabeculation (diastolic frame) (B) and dyskinesia (arrow) of the right ventricular free wall (systole frame) consistent with arrhythmogenic cardiomyopathy (C).