Fig. 3
From: Delayed management of atrial lead dislodgment after pacemaker implantation: a case report
Mitral Doppler recordings. a EA fusion during ventricular pacing before new atrial lead implantation. b E wave and A wave were separated only during a few intrinsic ventricular deflections before new atrial lead implantation. c E and A waves were separated ideally during DDD pacing mode, with atrial deflection followed by intrinsic ventricular deflection conducted through the normal AV node