Background—The differential diagnosis between idiopathic and cardiomyopathy-related
right ventricular outflow tract (RVOT) ventricular arrhythmias (VAs) is crucial. Signal …

Aims The differentiation between idiopathic right ventricular outflow tract (RVOT) arrhythmias
and early arrhythmogenic right ventricular cardiomyopathy (ARVC) can be challenging. We …

Background The right ventricular outflow tract (RVOT) is the most common site of origin of
ventricular arrhythmias (VAs) in patients with idiopathic VAs. A left bundle branch block …

Background Numerous electrocardiographic (ECG) criteria have been proposed to identify
localization of outflow tract ventricular arrhythmias (OT-VAs); however, in some cases, it is …

CMR in Idiopathic RVOT Arrhythmias Introduction Because of prognostic and therapeutic
implications, the distinction between idiopathic right ventricular (RV) outflow tract (iRVOT) …

Objectives: The purpose of this study was to evaluate the relationship between
electrocardiogram (ECG) QRS fragmentation (fQRS) and right ventricular (RV) endocardial …

Idiopathic ventricular arrhythmias are ventricular tachycardias or premature ventricular
contractions presumably not related to myocardial scar or disorders of ion channels. Of the …

Background This study investigated the feasibility of using the precordial surface ECG lead
interlead QRS dispersion (IQRSD) in the identification of abnormal ventricular substrate in …

Objectives: We tested whether 3-dimensional electroanatomical voltage mapping (EVM)
may help in the differential diagnosis between idiopathic right ventricular outflow tract …

Introduction Various ECG algorithms have been proposed to identify the origin of idiopathic
outflow tract (OT)‐ventricular arrhythmia (VA). However, electrocardiographic features of …