The peak A velocity(VA), velocity time integral of A-wave(A-VTI), atrial ejection force(AEF) and peak atrial tissue velocity(Va) decreased in day 1 after cardioversion, but gradually recovered with time.

• 房颤患者除颤后 2 4小时VA、A -VTI、AEF和Va明显低于正常 ,随时间推移逐渐增高 ,至除颤后 7天时基本恢复至正常水平。