Fragmentation of QRS complex during ventricular pacing is associated with ventricular arrhythmic events in patients with left ventricular dysfunction.
Freddy Del-Carpio MunozPeter A NoseworthyS Michael GharacholouChristopher G ScottVuyisile T NkomoFrancisco Lopez-JimenezYong Mei ChaThomas M MungerM P H Paul A FriedmanSamuel J AsirvathamPublished in: Journal of cardiovascular electrophysiology (2018)
RV stimulation can unmask fQRS, and it is associated with increased risk of ventricular tachyarrhythmia in LV dysfunction.