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IntroductionAn ablation catheter has been developed with six additional irrigation channels at the proximal end of the ablating electrode. We investigated the potential improvement of esophageal damage when the number of irrigation channels of the ablation catheter was increased during pulmonary vein isolation (PVI).
MethodsThis study included a total of 296 consecutive patients with atrial fibrillation. One hundred forty‐eight patients were randomly assigned to receive PVI using an ablation catheter with six distal irrigation channels (6C) and 148 patients to receive PVI using an ablation catheter with 12 distal irrigation channels (12C). The luminal esophageal temperature (LET) was monitored in all patients...
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