Please click here to obtain permission to reproduce this image.
Click on image to view larger version.
Figure 4 (A) Repetitive runs of atrial tachycardia observed at baseline in case 2. (B) Suppression of the arrhythmia by atrial pacing (A.P.) at a cycle length (C.L.) of 550 ms, which is longer than that of the atrial tachycardia. Note that a prolongation of only 10 ms in the paced atrial cycle length led to the reappearance of single and brief runs of ectopic atrial discharges (arrows). HRA = high right atrium electrogram.
|
