抄録
Healthy human heart rate is known to fluctuate in a highly complex manner, displaying complexity characteristics such as those shared by physical systems at a critical state. It is, however, widely believed that chronic heart failure reduces this complexity and that heart rate data from chronic-heart-failure patients can be used for the validation of complexity measures and paradigms applicable both to heart rate and more generally to assess any system's complexity. Here, we counter the above belief, showing an increase in fluctuations and in complexity of heart rate in chronic-heart-failure patients, in particular those at risk of death. This is supported by evidence of increased non-Gaussianity and heteroscedasticity resulting from the emergence of a characteristic correlation scale in the magnitude correlation landscape.
| 元の言語 | English |
|---|---|
| 記事番号 | 28005 |
| ジャーナル | EPL |
| 巻 | 82 |
| 発行部数 | 2 |
| DOI | |
| 出版物ステータス | Published - 01-04-2008 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
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Increased heteroscedasticity of heart rate in fatal heart failure. / Struzik, Z. R.; Kiyono, K.; Hayano, J.; Watanabe, E.; Yamamoto, Y.
：: EPL, 巻 82, 番号 2, 28005, 01.04.2008.研究成果: Article
TY - JOUR
T1 - Increased heteroscedasticity of heart rate in fatal heart failure
AU - Struzik, Z. R.
AU - Kiyono, K.
AU - Hayano, J.
AU - Watanabe, E.
AU - Yamamoto, Y.
PY - 2008/4/1
Y1 - 2008/4/1
N2 - Healthy human heart rate is known to fluctuate in a highly complex manner, displaying complexity characteristics such as those shared by physical systems at a critical state. It is, however, widely believed that chronic heart failure reduces this complexity and that heart rate data from chronic-heart-failure patients can be used for the validation of complexity measures and paradigms applicable both to heart rate and more generally to assess any system's complexity. Here, we counter the above belief, showing an increase in fluctuations and in complexity of heart rate in chronic-heart-failure patients, in particular those at risk of death. This is supported by evidence of increased non-Gaussianity and heteroscedasticity resulting from the emergence of a characteristic correlation scale in the magnitude correlation landscape.
AB - Healthy human heart rate is known to fluctuate in a highly complex manner, displaying complexity characteristics such as those shared by physical systems at a critical state. It is, however, widely believed that chronic heart failure reduces this complexity and that heart rate data from chronic-heart-failure patients can be used for the validation of complexity measures and paradigms applicable both to heart rate and more generally to assess any system's complexity. Here, we counter the above belief, showing an increase in fluctuations and in complexity of heart rate in chronic-heart-failure patients, in particular those at risk of death. This is supported by evidence of increased non-Gaussianity and heteroscedasticity resulting from the emergence of a characteristic correlation scale in the magnitude correlation landscape.
UR - http://www.scopus.com/inward/record.url?scp=79051469330&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79051469330&partnerID=8YFLogxK
U2 - 10.1209/0295-5075/82/28005
DO - 10.1209/0295-5075/82/28005
M3 - Article
AN - SCOPUS:79051469330
VL - 82
JO - Europhysics Letters
JF - Europhysics Letters
SN - 0295-5075
IS - 2
M1 - 28005
ER -