What is the role of direct current cardioversion in treating recent onset atrial fibrillation and atrial tachyarrhythmias?

Direct evidence supports using direct current cardioversion for rapid restoration to sinus rhythm in patients with recent onset atrial fibrillation or atrial tachyarrhythmias, especially when hemodynamically unstable. It is effective and generally safe, though disparities in access and some indirectness in specific populations exist.