Dr Andreu-Porta-Sánchez provides Arrhythmia Academy with a concise and excellent 'how-to' overview of Decrement Evoked Potential (DEEP) Mapping for VT substrate ablation in a challenging substrate. With special thanks to Veronica Torralba for her technical support in recording the case.

Further presentations from Dr Porta-Sánchez on DEEP mapping will be delivered at the following upcoming meetings: https://www.signalssummit.com/ and http://www.clevelandclinicmeded.com/live/courses/globalep21/ for further details.