Long- and short-time analysis of heartbeat sequences: Correlation with mortality risk in congestive heart failure patients

被引：13

作者：

Allegrini, P

Balocchi, R

Chillemi, S

Grigolini, P

Hamilton, P

Maestri, R

Palatella, L

Raffaelli, G

机构：

[1] CNR, Area Ric Pisa S Cataldo, Ist Linguist Computaz, I-56124 Ghezzano Pisa, Italy

[2] CNR, Area Ric Pisa S Cataldo, Ist Fisiol Clin, I-56124 Ghezzano Pisa, Italy

[3] CNR, Area Ric Pisa S Cataldo, Ist Biofis, I-56124 Ghezzano Pisa, Italy

[4] Univ N Texas, Ctr Nonlinear Sci, Denton, TX 76203 USA

[5] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy

[6] INFM, I-56127 Pisa, Italy

[7] Texas Womans Univ, Ctr Nonlinear Sci, Denton, TX 76204 USA

[8] Ist Sci Montescano, IRCCS, Fdn S Maugeri, I-27040 Montescano, PV, Italy

[9] Scuola Int Super Studi Avanzati, I-34014 Trieste, Italy

[10] INFM Unit, I-34014 Trieste, Italy

来源：

PHYSICAL REVIEW E | 2003年 / 67卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.67.062901

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We analyze RR heartbeat sequences with a dynamic model that satisfactorily reproduces both the long- and the short-time statistical properties of heart beating. These properties are expressed quantitatively by means of two significant parameters, the scaling delta concerning the asymptotic effects of long-range correlation, and the quantity 1-pi establishing the amount of uncorrelated fluctuations. We find a correlation between the position in the phase space (delta,pi) of patients with congestive heart failure and their mortality risk.

引用

页数：4

共 12 条

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