Objective Based on the dynamical analysis of ventricular interval, this study aimed to investigate the circadian variation of VRI in atrial fibrillation(AF) and thus provide potential clues of clinical therapy for AF.

• 目的从持续性心房颤动心电图的心室律变化动力学的角度,探讨心房颤动的心电信号中心室律昼夜节律的变化规律,为心房颤动的治疗提供有意义的思路。