The functional atrioventricular block caused by a premature ventricular beat from His-Purkinje system: Electrophysiological insights in permanent peri–left bundle branch area pacing

摘要

The 24-hour Holter results showing normal sinus rhythm with right bundle branch block and left anterior fascicular block. In addition, a premature beat followed by an atrial impulse was recorded by 24-hour Holter. This atrial impulse cannot propagate down to activate the ventricle and was followed by the temporary right ventricular pacing.