Influence of myopotential interference on the Wavelet discrimination algorithm in implantable cardioverter-defibrillator

Mizukami, Kazuya; Yokoshiki, Hisashi; Mitsuyama, Hirofumi; Watanabe, Masaya; Tenma, Taro; Kamada, Rui; Takahashi, Masayuki; Sasaki, Ryo; Maeno, Motoki; Tsutsui, Hiroyuki

Influence of myopotential interference on the Wavelet discrimination algorithm in implantable cardioverter-defibrillator

Mizukami, Kazuya; Yokoshiki, Hisashi; Mitsuyama, Hirofumi et al.

Journal of arrhythmia, 2017, 33(3), 214-219

Permalink : https://hdl.handle.net/2115/67300

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アクセス権	open access
URI	https://hdl.handle.net/2115/67300
タイトル	Influence of myopotential interference on the Wavelet discrimination algorithm in implantable cardioverter-defibrillator
著者	Mizukami, Kazuya ; Yokoshiki, Hisashi ; Mitsuyama, Hirofumi ; Watanabe, Masaya ; Tenma, Taro ; Kamada, Rui ; Takahashi, Masayuki ; Sasaki, Ryo ; Maeno, Motoki ; Tsutsui, Hiroyuki
著者名 Mizukami, Kazuya
e-Rad_Researcher 40360911 著者名 Yokoshiki, Hisashi
著者名 Mitsuyama, Hirofumi
著者名 Watanabe, Masaya
著者名 Tenma, Taro
著者名 Kamada, Rui
著者名 Takahashi, Masayuki
著者名 Sasaki, Ryo
著者名 Maeno, Motoki
e-Rad_Researcher 70264017 著者名 Tsutsui, Hiroyuki
言語	英語
キーワード	Implantable cardioverter-defibrillator
	Tachycardia discrimination
	Morphology
	Myopotential interference
	Wavelet
発行日	2017-06
出版者	Elsevier
収録物名	Journal of arrhythmia
巻(号)	33(3)
ページ	214-219
抄録	Background: Wavelet is a morphology-based algorithm for detecting ventricular tachycardia. The electrogram (EGM) source of the Wavelet algorithm is nominally programmed with the Can-RV coil configuration, which records a far-field ventricular potential. Therefore, it may be influenced by myopotential interference. Methods: We performed a retrospective review of 40 outpatients who had an implantable cardioverter-defibrillator (LCD) with the Wavelet algorithm. The percent-match score of the Wavelet algorithm was measured during the isometric chest press by pressing the palms together. We classified patients with percent-match scores below 70% due to myopotential interference as positive morphology change, and those with 70% or more as negative morphology change. Stored episodes of tachycardia were evaluated during the follow-up. Results: The number of patients in the positive morphology change group was 22 (55%). Amplitude of the Can-RV coil EGM was lower in the positive morphology change group compared to that in the negative group (3.9 +/- 1.3 mV vs. 7.4 +/- 1.6 mV, P=0.0015). The cut-off value of the Can-RV coil EGM was 5 mV (area under curve, 0.89). Inappropriate detections caused by myopotential interference occurred in two patients (5%) during a mean follow-up period of 49 months, and one of them received an inappropriate LCD shock. These patients had exhibited positive morphology change. Conclusions: The Wavelet algorithm is influenced by myopotential interference when the Can-RV coil EGM is less than 5 mV.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
PISSN	1880-4276
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1016/j.joa.2016.08.005