{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T21:40:17Z","timestamp":1790890817537,"version":"4.1.0"},"reference-count":11,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2019,12,21]],"date-time":"2019-12-21T00:00:00Z","timestamp":1576886400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Noninvasive Electrocardiol"],"published-print":{"date-parts":[[2020,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Due to limited data, implantable loop recorders (ILR) are not currently recommended by the guidelines to routinely monitor patients after atrial fibrillation (AF) ablation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Aims<\/jats:title><jats:p>To validate the diagnostic value of ILR after AF ablation, modern generation ILRs (LINQ) were implanted in patients scheduled for cryoballoon ablation of AF (CBA).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We included 29 patients with frequent and symptomatic episodes of paroxysmal AF. ILR was implanted 3\u00a0months prior to CBA, and data were collected before and for 6\u00a0months after the procedure. The device was programmed to maximize sensitivity of AF\/ atrial tachycardia (AT) detection. All EGM recordings were \u201cmanually\u201d assessed and annotated as true AF, pseudo AF, unrecognized AF, and episodes with no EGM available. Duration and episode\u2010based standard performance metrics were evaluated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total number of 5,842 episodes were recorded. A total of 4,403 episodes were true AF, 453 episodes were pseudo AF, and 986 episodes had no EGM available. The device did not recognize 144 episodes of AF. Duration\u2010based sensitivity was 95.2%, duration\u2010based specificity 99.9%, duration\u2010based PPV 99.2%, duration\u2010based NPV 99.9%, episode\u2010based sensitivity 98.0%, and episode\u2010based PPV 91.0%. Misdiagnosis happened in 1 in 10 episodes. Total data review time was 166\u00a0hr.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Implantable loop recorders is a valuable tool in evaluation of AF episodes in patients undergoing CBA. However, for high precision all recorded episodes need to be evaluated \u201cmanually.\u201d The memory storage space is too low for frequent AF episodes, resulting in overwriting of stored EGMs and data loss.<\/jats:p><\/jats:sec>","DOI":"10.1111\/anec.12733","type":"journal-article","created":{"date-parts":[[2019,12,21]],"date-time":"2019-12-21T18:50:30Z","timestamp":1576954230000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Diagnostic value of implantable loop recorder in patients undergoing cryoballoon ablation of atrial fibrillation"],"prefix":"10.1111","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4810-3896","authenticated-orcid":false,"given":"Aleksander","family":"Kusiak","sequence":"first","affiliation":[{"name":"1st Department of Cardiology, Interventional Electrocardiology and Hypertension University Hospital in Krakow Krakow Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3318-6601","authenticated-orcid":false,"given":"Marek","family":"Jastrz\u0119bski","sequence":"additional","affiliation":[{"name":"College of Medicine 1st Department of Cardiology, Interventional Electrocardiology and Hypertension Jagiellonian University Krakow Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adam","family":"Bednarski","sequence":"additional","affiliation":[{"name":"1st Department of Cardiology, Interventional Electrocardiology and Hypertension University Hospital in Krakow Krakow Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Piotr","family":"Ku\u0142akowski","sequence":"additional","affiliation":[{"name":"Department of Cardiology Centre of Postgraduate Medical Education Grochowski Hospital Warsaw Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roman","family":"Piotrowski","sequence":"additional","affiliation":[{"name":"Department of Cardiology Centre of Postgraduate Medical Education Grochowski Hospital Warsaw Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Edward","family":"Ko\u017aluk","sequence":"additional","affiliation":[{"name":"Department of Cardiology Warsaw Medical University Warszawa Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Artur","family":"Baszko","sequence":"additional","affiliation":[{"name":"2nd Department of Cardiology Medical University in Poznan Poznan Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Danuta","family":"Czarnecka","sequence":"additional","affiliation":[{"name":"College of Medicine 1st Department of Cardiology, Interventional Electrocardiology and Hypertension Jagiellonian University Krakow 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