According to some embodiments, a method of confirming successful ablation of targeted cardiac tissue of a subject using a high-resolution mapping electrode comprises pacing said cardiac tissue at a predetermined pacing level to increase the heart rate of the subject from a baseline level to an elevated level, the predetermined pacing level being greater than a pre-ablation pacing threshold level but lower than a post-ablation pacing threshold level, delivering ablative energy to the ablation electrode, detecting the heart rate of the subject, wherein the heart rate detected by the high-resolution mapping electrode is at the elevated level before the post-ablation pacing threshold level is achieved, and wherein the heart rate detected by the high-resolution mapping electrode drops below the elevated level once ablation achieves its therapeutic goal or target, and terminating the delivery of ablative energy to the ablation electrode after the heart rate drops below the elevated level.
