The diurnal disfribution of ventricular response in patients with AF showed a regular circadian variation,The trough of heart rate were from 4Am to 5Am and peak at 10Am to 11Am.

• 发现房颤患者心室反应有其一定的昼夜节律 ,在凌晨 4时至 5时达谷值 ,于上午 10时至 11时达峰值。