Update on atrial fibrillation catheter ablation technologies and techniques

Atrial fibrillation is one of the most common heart arrhythmias. In this Review, Dewire and Calkins discuss the development and role of catheter ablation to electrically isolate the pulmonary veins in patients with paroxysmal, persistent, or longstanding persistent atrial fibrillation. They go on to highlight novel tools that improve the safety, efficacy, and precision of ablation techniques.