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

P. Allegrini, R. Balocchi, S. Chillemi, P. Grigolini, P. Hamilton, R. Maestri, L. Palatella, G. Raffaelli

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)62901
Number of pages1
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume67
Issue number6
Publication statusPublished - Jun 1 2003

ASJC Scopus subject areas

  • Medicine(all)

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