1. Faisal F. Syed et al. JACEP 2015;1:273-283
Variability in Pacing Thresholds Variability in pacing thresholds from electrodes directed toward myocardium at different anatomical sites (top) and between electrode configurations (bottom). Box and whisker plots summarize individual pacing thresholds from all experiments (6 dogs with 70 data points, 5 pigs with 81 data points), with median, first, and third quartiles marked by the middle band and top and bottom of the box, respectively, range is marked by the whiskers, and potential outliers by disconnected points. Note, LAA was the site with greatest variability in pacing threshold in dogs and least variability in swine, and the distal-most electrode pair (1–2) had greatest variability (see text for details). Numbers represent epicardial electrode configuration as shown in Figure 3. LAA = left atrial appendage; LV = left ventricle; RVOT = right ventricular outflow tract.
Faisal F. Syed et al. JACEP 2015;1:
American College of Cardiology Foundation