Key result
Electroanatomical voltage mapping revealed that 88.7% of successful ablation sites for idiopathic right ventricular outflow tract arrhythmias were located in the transitional-voltage zone.
Why the study?
Does three-dimensional electroanatomical voltage mapping identify specific voltage zones associated with successful ablation in patients with idiopathic RVOT arrhythmias?
Observational (n=72)
Does three-dimensional electroanatomical voltage mapping identify specific voltage zones associated with successful ablation in patients with idiopathic RVOT arrhythmias?
The vast majority of successful ablation sites for idiopathic RVOT arrhythmias are located in the transitional-voltage zone (0.5-1.5 mV), suggesting this zone is an important landmark for targeted ablation.
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Voltage mapping identifies common RVOT ablation sites; leaves open whether site-specific strategies improve outcomes.
Yamashina et al. (2009) conducted an observational in Idiopathic right ventricular outflow tract arrhythmias (n=72). Electroanatomical voltage mapping was evaluated on Distribution of successful ablation sites across voltage zones. Electroanatomical voltage mapping revealed that 88.7% of successful ablation sites for idiopathic right ventricular outflow tract arrhythmias were located in the transitional-voltage zone.
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