A. Every alternate P wave (orange star) falls in the blanking period. PVARP represents post ventricular atrial refractory period; PVAB, post ventricular atrial blanking; AVD, atrioventricular delay; Vp, ventricular paced; As, atrial sensed. B. Depiction of ECG lead II in our patient, where blanked flutter search algorithm increased the PVARP for one cycle leading to the dropped beat. AS indicates atrial sensed event; VP, ventricular paced; AR, atrial refractory; PVARP, post ventricular atrial refractory period.