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KMID : 1011920200210010006
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International Journal of Arrhythmia
2020 Volume.21 No. 1 p.6 ~ p.6
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Accuracy of implantable loop recorders for detecting atrial tachyarrhythmias after atrial fibrillation catheter ablation
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Cho Hyun-Jung
Lee Cheol-Hyun
Hwang Jong-Min
Park Hyoung-Seob
Choi Sang-Woong
Kim In-Cheol
Cho Yun-Kyeong
Yoon Hyuck-Jun
Kim Hyung-Seop
Nam Chang-Wook
Hur Seung-Ho
Jung Byung-Chun
Kim Yoon-Nyun
Han Seong-Wook
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Abstract
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Background: Implantable loop recorders (ILRs) can provide an enhanced possibility to detect atrial fibrillation (AF), but the accuracy, especially the positive predictive value (PPV), is controversial. This study aimed to evaluate the accuracy of ILRs for detecting AF through a comparison with Holter.
Method and results: Thirteen patients who underwent AF ablation were enrolled. ILRs were implanted in all patients, who were scheduled to have Holter monitorings after the procedure. The incidence of AF was compared between the two modalities and analyzed for any correlations. A total of 51 Holters (67,985.5 min) and concomitant ILRs were available for the comparison. The judgment of the presence of AF did not perfectly correlate between the ILR and Holter (Kappa?=?0.866, P?
Conclusion: The ILR had a low false positive value and high PPV for AF events. However, it was limited in identifying AT.
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KEYWORD
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Implantable loop recorder, Holter, Atrial fibrillation, Atrial tachycardia
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