MRI safety wih abandoned or functional epicardial pacing leads

Abstract Funding Acknowledgements Type of funding sources: Public hospital(s). Main source(s): HUS Medical Imaging Center research grant Background The Heart and Rhythm Society’s consensus statement 2017 approves magnetic resonance imaging (MRI) with cardiac implantable electronic devices (CIED), but excludes patients epicardial abandoned leads. Potential safety hazards an MRI pacing leads include heating the tip lead induction current in resulting inappropriate stimulation. Only a few small studies have been published adverse events rare. clinical dilemma remains, whether performing on patient CIED is safe. We performed MRIs when benefits considered to outweigh risks after careful case-by-case evaluation following our institutional protocol. Purpose aim this study was evaluate scan or functional Methods All clinically indicated examinations conducted adult (n = 24) hospital between November 2011 October 2019 were included observational retrospective study. data retrospectively collected from medical records. Results Altogether 24 16 (Table). 93.8% (15/16) had congenital heart disease. Cardiac most frequent examination (21/24, 91.7%). 66.7% scans (16/24) In 5/24 (20.8%) MRIs, pacemaker-dependent. A significant event occurred one scan. This transient elevation threshold ventricular lead, that implanted 29 years prior MRI. another 30-year-old leads, irreversible atrial impedance detected 6 months unlikely related previous examination. None experienced sensations leading cessation scans. No parameter changes modern (implanted year 2000 later) endocardial Conclusions without detectable events. Performing old may involve more risks.