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Fig. 4 | International Journal of Arrhythmia

Fig. 4

From: Differentiation of the right versus left outflow tract ventricular arrhythmias using local activation time at the His bundle electrogram

Fig. 4

a Boxplots of the QRS-V(HB) intervals (interval from the onset of the earliest QRS complex in 12-lead surface electrocardiogram to the V signal in the His bundle electrogram) for idiopathic ventricular arrhythmia originating from the RVOT and LVOT. b ROC curve of the QRS-V(HB) interval. A QRS-V(HB) interval cutoff of ≤ 15 ms predicted an origin from the LVOT with 100% sensitivity and 70.8% specificity

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International Journal of Arrhythmia

ISSN: 2466-1171

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