Table 4:

Summary of events that occurred to patients or CIEDs after MRI studies

N=54 MRI Studies	N (%)
Symptoms during MRI
Warmth at left chest	2 (4)
Tingling sensation at left chest	1 (2)
Pause in heart rhythm when programmed in non-paced mode	1 (2)
CIED or lead removal required post-MRI	0 (0)
CIED or lead removal related to MRI at follow-up	0 (0)
Programming changes post-MRI (N=49) †
Change in Capture Threshold >0.5	0 (0)
Programming changes at follow-up (N=36) ‡
Change in Capture Threshold >0.5V	0 (0)

^†N=49 due to 4 patients not having a CIED generator and 1 patient whose post-MRI interrogation was not entered into the medical record.

^‡N=36 due to 4 patients not having a CIED generator and 14 patients who did not have a follow-up interrogation in the medical record.