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Figure 1 Acute outcomes of intra-atrial re-entrant tachycardia ablation. In the initial 71 cases, standard techniques for mapping and ablation were used. Irrigated ablation was applied in selected cases after that and was applied in 9/36 procedures using standard mapping techniques. Electroanatomic mapping was used in 69/71 most recent procedures, with irrigated ablation used in 30 of those procedures. Black bars = complete procedural success (termination of all targeted circuits); white bars = limited procedural success (termination of at least one circuit).