Key result
Electrocardiographic analysis identified distinct characteristics of LVOT-VTs, with intrinsicoid deflection time being significantly greater in AMC and anterior MA origins compared to ASC (P<0.05).
Population
45 consecutive patients with idiopathic left ventricular outflow tract ventricular tachyarrhythmias (LVOT-VTs)
Design
Cohort
Authors
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May aid pre-procedural localization for safer LVOT-VT ablation; leaves open prospective validation in larger cohorts.
Observational (n=45)
p-value: p=<0.05
Specific electrocardiographic characteristics, including precordial R wave patterns and intrinsicoid deflection time, can differentiate the anatomical origins of idiopathic LVOT-VTs to facilitate safe radiofrequency catheter ablation.
Kumagai et al. (2008) conducted an observational in Idiopathic left ventricular outflow tract ventricular tachyarrhythmias (n=45). Electrocardiographic analysis was evaluated on Intrinsicoid deflection time (p=<0.05). Electrocardiographic analysis identified distinct characteristics of LVOT-VTs, with intrinsicoid deflection time being significantly greater in AMC and anterior MA origins compared to ASC (P<0.05).
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