Patient flow diagram.
ECG, electrocardiogram.This study was registered in the Japan Registry of Clinical Trials (jRCT) as jRCTs 032180018. Patients provided written informed consent before enrollment. The protocol was approved by the University of Tsukuba Clinical Research Review Board, and the study was conducted in accordance with the Declaration of Helsinki and the Clinical Trials Act in Japan [This study was implemented at the University of Tsukuba Hospital. Eligible participants were 20 years of age or older at consent; had completed a first catheter ablation for AF; were scheduled for Holter ECG monitoring 3 months post-ablation at the University of Tsukuba Hospital; and consented to use a Garment ECG device (