Localized rotors and focal impulse sources within the left atrium in human atrial fibrillation: A phase analysis of contact basket catheter electrograms

BACKGROUND: Consistent detection of rotor(s) and/or focal impulse(s) of atrial fibrillation can using a 64-pole basket catheter remain unclear. METHODS AND RESULTS: Intracardiac left atrial electrograms were recorded, prior to ablation, in 20 patients with atrial fibrillation. Unipolar electrograms,...

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Autores principales: Sasaki, Naoko, Okumura, Yasuo, Watanabe, Ichiro, Madry, Andrew, Hamano, Yuki, Nikaido, Mizuki, Kogawa, Rikitake, Nagashima, Koichi, Takahashi, Keiko, Iso, Kazuki, Ohkubo, Kimie, Nakai, Toshiko, Hirayama, Atsushi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2016
Materias:
Original Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4823606/
https://www.ncbi.nlm.nih.gov/pubmed/27092196
http://dx.doi.org/10.1016/j.joa.2015.11.010
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author Sasaki, Naoko
Okumura, Yasuo
Watanabe, Ichiro
Madry, Andrew
Hamano, Yuki
Nikaido, Mizuki
Kogawa, Rikitake
Nagashima, Koichi
Takahashi, Keiko
Iso, Kazuki
Ohkubo, Kimie
Nakai, Toshiko
Hirayama, Atsushi
author_facet Sasaki, Naoko
Okumura, Yasuo
Watanabe, Ichiro
Madry, Andrew
Hamano, Yuki
Nikaido, Mizuki
Kogawa, Rikitake
Nagashima, Koichi
Takahashi, Keiko
Iso, Kazuki
Ohkubo, Kimie
Nakai, Toshiko
Hirayama, Atsushi
author_sort Sasaki, Naoko
collection PubMed
description BACKGROUND: Consistent detection of rotor(s) and/or focal impulse(s) of atrial fibrillation can using a 64-pole basket catheter remain unclear. METHODS AND RESULTS: Intracardiac left atrial electrograms were recorded, prior to ablation, in 20 patients with atrial fibrillation. Unipolar electrograms, filtered at 0.1–300 Hz, were recorded and exported for an offline phase analysis. From the cohort, 8 of the 20 patients had analyzable data. Localized rotors were identified in 3 of these patients, with focal impulses detected in 4 patients. CONCLUSION: Localized rotors and focal impulses can be identified on phase maps of atrial fibrillation in a small number of patients.
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spelling pubmed-48236062016-04-18 Localized rotors and focal impulse sources within the left atrium in human atrial fibrillation: A phase analysis of contact basket catheter electrograms Sasaki, Naoko Okumura, Yasuo Watanabe, Ichiro Madry, Andrew Hamano, Yuki Nikaido, Mizuki Kogawa, Rikitake Nagashima, Koichi Takahashi, Keiko Iso, Kazuki Ohkubo, Kimie Nakai, Toshiko Hirayama, Atsushi J Arrhythm Original Article BACKGROUND: Consistent detection of rotor(s) and/or focal impulse(s) of atrial fibrillation can using a 64-pole basket catheter remain unclear. METHODS AND RESULTS: Intracardiac left atrial electrograms were recorded, prior to ablation, in 20 patients with atrial fibrillation. Unipolar electrograms, filtered at 0.1–300 Hz, were recorded and exported for an offline phase analysis. From the cohort, 8 of the 20 patients had analyzable data. Localized rotors were identified in 3 of these patients, with focal impulses detected in 4 patients. CONCLUSION: Localized rotors and focal impulses can be identified on phase maps of atrial fibrillation in a small number of patients. Elsevier 2016-04 2016-02-03 /pmc/articles/PMC4823606/ /pubmed/27092196 http://dx.doi.org/10.1016/j.joa.2015.11.010 Text en © 2016 Japanese Heart Rhythm Society. Published by Elsevier B.V. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Original Article
Sasaki, Naoko
Okumura, Yasuo
Watanabe, Ichiro
Madry, Andrew
Hamano, Yuki
Nikaido, Mizuki
Kogawa, Rikitake
Nagashima, Koichi
Takahashi, Keiko
Iso, Kazuki
Ohkubo, Kimie
Nakai, Toshiko
Hirayama, Atsushi
Localized rotors and focal impulse sources within the left atrium in human atrial fibrillation: A phase analysis of contact basket catheter electrograms
title Localized rotors and focal impulse sources within the left atrium in human atrial fibrillation: A phase analysis of contact basket catheter electrograms
title_full Localized rotors and focal impulse sources within the left atrium in human atrial fibrillation: A phase analysis of contact basket catheter electrograms
title_fullStr Localized rotors and focal impulse sources within the left atrium in human atrial fibrillation: A phase analysis of contact basket catheter electrograms
title_full_unstemmed Localized rotors and focal impulse sources within the left atrium in human atrial fibrillation: A phase analysis of contact basket catheter electrograms
title_short Localized rotors and focal impulse sources within the left atrium in human atrial fibrillation: A phase analysis of contact basket catheter electrograms
title_sort localized rotors and focal impulse sources within the left atrium in human atrial fibrillation: a phase analysis of contact basket catheter electrograms
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4823606/
https://www.ncbi.nlm.nih.gov/pubmed/27092196
http://dx.doi.org/10.1016/j.joa.2015.11.010
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