Direkte subendokardiale Katheterinfusion als neues Ablationsverfahren von rechtsatrialen Arrhythmien

Ablation of typical atrial flutter using radiofrequency energy is limitted by difficulties in creating a continuous line of block across the istmus between the tricuspid anulus and the inferior vena cava. Recent studies from our laboratory have shown that a novel infusion ablation technique can create large endocardial lesions in a safe and predictable fashion. The purpose of our study was to assess the feasibility of transcatheter subendocardial infusion of a mixture of 95% enthanol, iodinated contrast and glycerin to create atrial lesions resulting in complete ablation of the critical isthmus mediating typical atrial flutter.