Key result
The HV interval and 12-lead ECG morphology, including QRS duration and R/S ratio in leads I and V6, can predict the successful site of origin for ablation of left posterior fascicular VT.
Why the study?
Can the HV interval and 12-lead ECG morphology predict the site of origin in patients with idiopathic left posterior fascicular ventricular tachycardia?
Observational (n=41)
Can the HV interval and 12-lead ECG morphology predict the site of origin in patients with idiopathic left posterior fascicular ventricular tachycardia?
HV interval and 12-lead ECG morphology, specifically QRS duration and R/S ratio in leads I and V6, can predict the site of origin of LPF-VT to guide ablation strategies.
May guide ablation site selection in left posterior fascicular VT; leaves open prospective validation of predictive utility.
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Wei et al. (2017) conducted an observational in Idiopathic Left Posterior Fascicular Ventricular Tachycardia (n=41). Site of origin (proximal, middle, or distal left posterior fascicle) vs. Comparison between proximal, middle, and distal groups was evaluated on Earliest mapped presystolic potential (PP)-QRS interval, earliest PP ratio, and QRS duration. The HV interval and 12-lead ECG morphology, including QRS duration and R/S ratio in leads I and V6, can predict the successful site of origin for ablation of left posterior fascicular VT.
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