Atrial fibrillation (AFib) is the most common heart rhythm abnormality, affecting more than 33 million people worldwide. Patients with AFib are at a higher risk of stroke if not properly treated. Watch Hugh Calkins, director of the Johns Hopkins Cardiac Arrhythmia Service, as he discusses the latest developments impacting AFib management, including a review of the recent guidelines, the latest techniques and strategies for stroke prevention. | Johns Hopkins Medicine