B-PO02-001 ASSESSING THE BURDEN OF CARDIAC IMPLANTABLE ELECTRONIC DEVICE CHECKS PERFORMED FOR MAGNETIC RESONANCE IMAGING IN A LARGE TERTIARY HOSPITAL - THE CHECK-MRI STUDY

Abstract

Most modern Cardiac Implantable Electronic Devices (CIEDs) are now compatible with magnetic resonance imaging (MRI) scans subject to pre-specified conditions. CIED checks are required to fulfill these conditions both pre- and post-MRI scan which requires appropriate resource allocation of specialist staffing. To determine the burden of CIED checks associated with MRI-scans. We identified all CIED checks performed peri (pre- and post-) MRI scans at our institution between July 1st, 2017 to June 30th, 2020. Device check reports, MRI scan reports and clinical summaries were collated. The burden of checks was determined by assessing the occasion of service for the checks and the intervals between pre- and post-MRI checks. A total of 739 CIED checks were performed in the peri-MRI scan setting (370 pre- and 369 post-MRI scan) over the 3 year period. There were 295 patients (75 ±13 years old, 64% male) with a CIED in-situ (88% permanent pacemaker, and 12% high voltage device) who had an MRI, including 49 who had more than one MRI scan. Regarding MRI scan scheduling, 5% (n=39) checks were performed outside of routine hours (weekend; n=10, and weekday <8am or >5pm; n=29). The average interval between pre- and post- MRI check was 78mins (SE ±2.2mins) and the number of peri-MRI checks had an increasing trend over the 3 year period (combined as 'workload' burden in figure). There is an increasing workload burden associated with CIED checks in the peri-MRI setting. Fulfilment of MRI scan conditionality criteria requires significant allocation of staffing resources, including outside of routine office hours, highlighting the need for improved workflow planning.