Level of baseline cardiopulmonary fitness strongly correlates with outcomes of atrial fibrillation ablation. Those that are more fit are more likely to maintain long term sinus rhythm, come off antiarrhythmic medications and have improved mortality. This study reinforces the impact that cardiovascular risk factors such as weight, blood pressure, diabetes, sleep apnea - and now cardiovascular fitness has on atrial fibrillation management. Oussama Wazni, MD, Section Head Electrophysiology and Pacing discusses this exciting paper with lead author Eoin Donnellan, MD and Wael A. Jaber, MD Learn More: Higher baseline cardiorespiratory fitness is associated with lower arrhythmia recurrence and death following atrial fibrillation ablation by Eoin Donnellan, MD, et al., published in Heart Rhythm. https://doi.org/10.1016/j.hrthm.2020.05.013