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Delivery of electrophysiology (EP) care in developing nations and underserviced populations faces many hurdles, including the lack of local expertise and knowledge creation. The West Indies has experienced a paucity of local EP expertise. The University of Toronto has undertaken a unique collaborative educational effort with the University of the West Indies.We describe the effects of equity, diversity, and inclusion (EDI) in EP training at Toronto General Hospital in Canada by quantifying the impact of training the first female electrophysiologists to practice in Jamaica and Saint Lucia.Data from the ministries of health in Jamaica and Saint Lucia were reviewed. The number of arrhythmia clinic patients seen, EP studies and ablations performed, pacemaker clinic patients seen, and implantable devices, permanent pacemakers (PPMs), and implantable cardioverter-defibrillators (ICDs) implanted were assessed.One hundred one arrhythmia consults were seen by the new electrophysiologist in Jamaica after her return from training in 2020. She has since performed 19 EP studies/catheter ablations at a newly established ablation laboratory. Three cases of left ventricular (LV) dysfunction due to tachy-cardiomyopathy were treated successfully with catheter ablation with immense improvement in LV ejection fraction. Thirteen PPMs, 1 ICD, and 3 LV leads were implanted, after which no early complications were identified. In Saint Lucia, where there is no dedicated electrophysiology laboratory, 2 patients who required catheter ablation for tachycardia-mediated LV dysfunction were identified by the electrophysiologist since her return to the island in 2018. The patients were appropriately referred, resulting in restoration of normal LV function. Six PPMs also were implanted in Saint Lucia. Knowledge translation has been limited by the lack of accessibility to the required devices, catheters, and specialized equipment and accessories, mainly because of their costs.Training the first female electrophysiologists from Jamaica and Saint Lucia led to a quantifiable impact on EP care in both of these Caribbean countries. EDI strategies in EP training programs provide much needed benefits to developing nations, but more support is needed to allow new electrophysiologists to fully utilize their EP training to care for underserviced populations.