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.