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Abstract
Background: The Implantable Cardiac Monitor (ICM) is an invaluable tool for detecting cardiac arrhythmias by providing physicians. Critical to the success of ICMs depends on how quickly and accurately the data can be transmitted to a physician’s office after an arrhythmic event. Then, the clinical event can be analyzed and the treatment will be provided accordingly. However, no reports have been published as to how efficiently the ICM data is transmitted. Methods: There is a retrospective review of 520 patients who received a Medtronic Reveal LINQTM between 2/01/2015 and 6/01/2017. The time from the arrhythmic event to the time of physician notification was calculated and reason for delay was noted. Results: One hundred and twenty patients out of 520 patients (23%) had arrhythmic events transmitted over a mean follow up of 14 ± 4 months. The mean time between cardiac events and physician notification was 15 ± 8 days. Sixty-three percent (63%) of data transmission delay (defined as >24 hours) was due to the MyCareLinkTM Monitor not being in proximity to the patient. Connection failure between the monitor and the network accounted for 34% of data transmission delay. Conclusion: Significant delay in data transmission from Medtronic Reveal LINQTM cardiac monitor occurs frequently impacting patient care. Newer generations of the implantable cardiac monitors utilize Bluetooth technology, enabling immediate transfer of data from ICM to a patient’s cellular phone and subsequently to their physician’s office. This technology could potentially improve efficiency and reliability eliminating the issues of proximity and connectivity.
Highlights
The Implantable Cardiac Monitor (ICM) is an invaluable tool for detecting cardiac arrhythmias by providing physicians
We retrospectively reviewed the charts of 520 consecutive patients who received a Medtronic Reveal LINQTM ICM between 2/01/2015 and 6/01/2017 at Sparrow Hospital (Lansing, Michigan, USA)
Implantable cardiac monitor has become the standard of care for evaluating patient with unexplained syncope and arrhythmia and it is widely used as atrial fibrillation (AF) surveillance in patients with cryptogenic stroke [4, 14, 15]
Summary
The Implantable Cardiac Monitor (ICM) is an invaluable tool for detecting cardiac arrhythmias by providing physicians. Newer generations of the implantable cardiac monitors utilize Bluetooth technology, enabling immediate transfer of data from ICM to a patient’s cellular phone and subsequently to their physician’s office. This technology could potentially improve efficiency and reliability eliminating the issues of proximity and connectivity. The CRYSTAL-AF study showed the value of ICMs in detecting occult AF in cryptogenic stroke patients [7] The benefit of these ICM rests on the ability of physicians to receive timely reports about potential arrhythmias that may not have been detected by traditional means or in an otherwise asymptomatic patient. By implanting a small ICM in patients, physicians are given around the clock cardiac monitoring which can help diagnose disease and dictate management
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