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Augmented single-unit muscle sympathetic nerve activity in heart failure with chronic atrial fibrillation
http://hdl.handle.net/2297/30371
http://hdl.handle.net/2297/30371e1c1f263-93b4-4432-bf73-a36718111396
名前 / ファイル | ライセンス | アクション |
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ME-PR-KANEKO-S-509.pdf (273.4 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Augmented single-unit muscle sympathetic nerve activity in heart failure with chronic atrial fibrillation | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Ikeda, Tatsunori
× Ikeda, Tatsunori× Murai, Hisayoshi× Kaneko, Shuichi× Usui, Soichiro× Kobayashi, Daisuke× Nakano, Manabu× Ikeda, Keiko× Takashima, Shin-ichiro× Kato, Takeshi× Okajima, Masaki× Furusho, Hiroshi× Takamura, Masayuki |
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書誌情報 |
Journal of Physiology 巻 590, 号 3, p. 509-518, 発行日 2012-02-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0022-3751 | |||||
NCID | ||||||
識別子タイプ | NCID | |||||
関連識別子 | BA17220377 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1113/jphysiol.2011.223842 | |||||
出版者 | ||||||
出版者 | The Physiological Society / Wiley-Blackwell | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Atrial fibrillation (AF) is a common complication in heart failure (HF) patients. However, it remains unclear whether irregular ventricular response patterns induced by AF increase sympathetic nerve activity. We measured resting multi- and single-unit muscle sympathetic nerve activity (MSNA) in 21 age-matched HF patients with chronic AF (n= 11) rhythm or sinus rhythm (SR, n= 10). The multi-unit MSNA, which was expressed as total activity, was similar between HF + AF patients and HF + SR patients. However, the single-unit MSNA in HF + AF patients was significantly greater than that in HF + SR patients (62 ± 9 spikes min -1vs. 42 ± 4 spikes min -1, P < 0.05). Moreover, the incidence of multiple firing of single-unit MSNA within a given burst was augmented in HF + AF patients as compared with HF + SR patients (48 ± 8%vs. 26 ± 3%, P < 0.01). A significant negative relationship was observed between the reduced diastolic pressure induced by a prolonged cardiac interval in AF subjects and single-unit MSNA frequency within one cardiac interval in each HF + AF subject. The firing characteristics of single-unit MSNA were different between HF patients with AF and HF patients with SR; particularly, those with a prolonged long RR interval showed multiple firings of single-unit MSNA. These findings suggest that AF per se leads to the instantaneous augmentation of single-unit MSNA induced by decreased diastolic pressure, which might partially contribute to disease progression in HF patients. © 2012 The Authors. The Journal of Physiology © 2012 The Physiological Society. | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |