Remote Monitoring of Implantable Loop Recorders: False-Positive Alert Episode Burden

Catherine J. O'Shea, Melissa E. Middeldorp, Jeroen M. Hendriks, Anthony G. Brooks, Curtis Harper, Gijo Thomas, Mehrdad Emami, Anand Thiyagarajah, Suzanne Feigofsky, Rakesh Gopinathannair, Niraj Varma, Kevin Campbell, Dennis H. Lau, Prashanthan Sanders

Research output: Contribution to journalLetterpeer-review

4 Citations (Scopus)


Implantable loop recorders (ILRs) are widely recognized as an important diagnostic tool in patients with suspected arrhythmia, providing an opportunity for long-term cardiac rhythm monitoring. The emergence of remote monitoring (RM) for cardiac implantable electronic device follow-up 1 has facilitated timely recognition of ILR-detected arrhythmias; however, the volume of alert transmissions is burdensome for clinics and clinicians, with ILRs transmitting disproportionately high-alert quantities in comparison to other cardiac implantable electronic devices.2 By their subcutaneous nature, ILRs are prone to a variety of erroneous activations.3,4 Additionally, ILR alert burden is supplemented by patient-activated alerts, which often do not correspond with significant arrhythmia.5 Although small single-center reports have described false-positive ILR alerts, there is no multicenter experience regarding the RM burden of ILRs and frequency of false-positive alerts. We aimed to characterize ILR alert burden in a large multicenter cohort with the Reveal LINQ device.
Original languageEnglish
Article numbere009635
Number of pages3
JournalCirculation. Arrhythmia and electrophysiology
Issue number11
Publication statusPublished - Nov 2021


  • arrhythmias, cardiac
  • cohort studies
  • electronics
  • heart
  • humans


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