Everything counts in large amounts: device-detected atrial high-rate arrhythmias.

A Randomized Controlled Trial of the Efficacy and Safety of Electroanatomic Circumferential Pulmonary Vein Ablation Supplemented by Ablation of Complex Fractionated Atrial Electrograms Versus Potential-Guided Pulmonary Vein Antrum Isolation Guided by Intracardiac Ultrasound Yaariv Khaykin, MD; Allan Skanes, MD; Jean Champagne, MD; Sakis Themistoclakis, MD; Lorne Gula, MD; Antonio Rossillo, MD; Aldo Bonso, MD; Antonio Raviele, MD; Carlos A. Morillo, MD; Atul Verma, MD; Zaev Wulffhart, MD; David O. Martin, MD; Andrea Natale, MD Clinical Perspective ➡481