Reliability of an external loop recorder for automatic recognition and transtelephonic ECG transmission of atrial fibrillation

Journal of Telemedicine and Telecare
Axel MüllerHarald Korb

Abstract

In order to test a newly developed algorithm for detecting atrial fibrillation in clinical practice, we carried out parallel recordings using a conventional 24-h electrocardiogram (ECG) monitor and telemonitoring with an external loop recorder. Recordings were made in 24 patients with persistent atrial fibrillation and in another 24 patients with sinus rhythm. Atrial fibrillation was detected immediately in 23 of 24 patients with persistent atrial fibrillation and 20 min after fitting the single-channel loop recorder in the 24th patient (sensitivity 100%). On average, 3.1 false positives (i.e. detection of an episode, including the end or beginning of atrial fibrillation) were transmitted per patient. The sensitivity of the algorithms for automatically detecting bradycardiac and tachycardiac atrial fibrillation was also high. In 12 of 24 patients with sinus rhythm, false-positive tele-ECGs were transmitted. These were caused by supraventricular or ventricular extrasystoles and by sinus arrhythmias or sinoatrial (SA) blocks. The external loop recorder was very effective at detecting paroxysmal atrial fibrillation. Possible indications for the clinical use of this recorder include, in addition to diagnosis, monitoring patients fo...Continue Reading

References

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Citations

Oct 26, 2013·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Emanuela T LocatiMaurizio Lunati
Jul 1, 2015·IEEE Transactions on Bio-medical Engineering·Alan KennedyJames McLaughlin
Nov 1, 2015·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·E T LocatiM Brignole
Jun 21, 2017·Health Technology Assessment : HTA·Nicky J WeltonReecha Sofat
Dec 14, 2011·Netherlands Heart Journal : Monthly Journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation·B Oude VelthuisM F Scholten
Feb 17, 2017·Netherlands Heart Journal : Monthly Journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation·B Oude VelthuisJ M van Opstal
Dec 7, 2013·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Bob Oude VelthuisMarcoen F Scholten

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Methods Mentioned

BETA
prophylactic therapy

Software Mentioned

TOPCARE
ECG viewer

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