Noninvasive electrocardiographic imaging was used to evaluate dynamic atrioventricular delay programming in a patient with left bundle branch block.
Case Report (n=1)
Demonstrates the use of noninvasive electrocardiographic imaging for dynamic AV delay programming in a patient with LBBB.
The response to cardiac resynchronization therapy (CRT) is determined by various factors, including left ventricular (LV) lead location, atrioventricular (AV) delay, and inter-/intraventricular delays. Advances in quadripolar lead technology and device algorithms have improved patient response, yet selection of optimal settings remains challenging. Studies have shown acute improvement in electrical synchrony with manual AV optimization by fusion optimized intervals1,2; automated device algorithms, for example AdaptivCRT (Medtronic, Minneapolis, MN),3 SmartDelay (Boston Scientific, Marlborough, MA),4 and SyncAVTM (Abbott, Sylmar, CA)5; and pacing from multiple LV lead electrodes with MultiPoint Pacing (MPP).
Waddingham et al. (Wed,) conducted a case report in Left bundle branch block (n=1). Noninvasive electrocardiographic imaging of dynamic atrioventricular delay programming was evaluated. Noninvasive electrocardiographic imaging was used to evaluate dynamic atrioventricular delay programming in a patient with left bundle branch block.