Magnetic resonance imaging is safe in patients with left bundle branch pacing

BackgroundThe use of left bundle branch pacing (LBBP) has dramatically increased since it was first described in 2016, but to date there are no published data on the safety of performing magnetic resonance imaging (MRI) in these patients. MethodsPatients with LBBP who underwent MRI between January 2016 and October 2022 were retrospectively studied in our clinical center, which has a special program for imaging patients with cardiac devices. All patients underwent close cardiac monitoring throughout the MRI scans. Occurrence of arrhythmias or other adverse effects during MRI were assessed. LBBP lead parameters immediately pre- and post-MRI and at an outpatient follow-up were compared. ResultsFifteen patients with LBBP underwent a total of 19 MRI sessions during the study period. Lead parameters did not significantly change after the MRI or on follow-up, which took place at a median of 91 days after the MRI. No patient developed arrhythmias during the MRI sessions, and no adverse effects such as lead dislodgement were reported. ConclusionAlthough larger studies are necessary to verify our findings, MRI in patients with LBBP appears safe based on this initial case series.

Automated summary

This study retrospectively studied the data of 15 patients who underwent MRI with LBBP between January 2016 and October 2022. The results showed that MRI in patients with LBBP appears to be safe, with no occurrences of arrhythmias or other adverse effects.