Dr. Sara Vázquez is a cardiac electrophysiologist trained at Hospital Clínic de Barcelona, Spain and McGill University, Canada. She is currently a staff electrophysiologist at Donostia University Hospital. She combines clinical practice with active research focused on advanced characterization of the ventricular arrhythmic substrate, including both imaging-based and functional substrate assessment. She completed her PhD on ventricular arrhythmia substrate characterization and catheter ablation. She has authored and co-authored peer-reviewed publications on ventricular arrhythmias and emerging technologies in cardiac electrophysiology, including pulse field ablation Keywords: Ventricular arrhythmias, Ventricular substrate, Catheter ablation, Cardiac imaging, Functional substrate mapping, Pulse field ablation