Figure Legends
Figure 1. Graph showing time-course of threshold changes in the increased pacing threshold (IPT) group. The change in the pacing threshold for nine patients in the IPT group is shown. Patients who required a threshold ≥2.0 V at 3 months after implantation are shown in red lines, and patients who had a threshold of ≤2.0 V at 3 months after implantation are shown in gray lines.
Figure 2 : Graph showing time-course of the pacing threshold in the stable pacing threshold (SPT) group . Each boxplot represents the total number of patients assessed at each time point. The upper and lower whiskers show the maximum and minimum values (excluding outliers), respectively, and the line that divides the box represents the median threshold value.
Figure 3 : The receiver operating characteristic (ROC) curves for impedance and the pacing threshold at implantation. A) ROC curve of implant pacing threshold to determine the probability of increased pacing threshold shortly after Micra-TPS implantation. B) ROC curve of implant impedance to determine the probability of increased pacing threshold shortly after Micra-TPS implantation. C) Comparison of the area under the curve (AUC) for the two ROC curves. The numbers in the graphs in 3A and 3B represent the cutoff values with the best sensitivity and specificity. The numbers in parentheses indicate the rates of sensitivity and specificity. The p-value in 3C was obtained using the chi-square test.