Association of scar distribution with epicardial electrograms and surface ventricular tachycardia QRS duration in nonischemic cardiomyopathy.
Jaeseok ParkBenoit DesjardinsJackson Jeikai LiangTarek ZghaibShuanglun XieIrene Lucena-PadrosErica S ZadoPasquale SantangeliDavid S FrankelDavid J CallansRob J van der GeestFrancis E MarchlinskiSaman NazarianPublished in: Journal of cardiovascular electrophysiology (2020)
In patients with NICM and VT, LGE is associated with epicardial electrogram features and may predict critical VT sites. Additionally, exit site QRS duration is affected by LGE transmurality and intramural location at the impulse origin or exit.