PUMA
Istituto di Fisiologia Clinica     
Allegrini P., Balocchi R., Chillemi S., Grigorini P., Hamilton P., Palatella L., Raffaelli G. Long- and short-time analysis of heartbeat sequences: Correlation with mortality risk in congestive heart failure patients. In: Physical Review E, vol. 67 (6) article n. 062901. 2003 The American Physical Society, 2003.
 
 
Abstract
(English)
We analyze R R 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 􏰏 concerning the asymptotic effects of long-range correlation, and the quantity 1 􏰚􏰓 establishing the amount of uncorrelated fluctuations. We find a correlation between the position in the phase space (􏰏, 􏰓) of patients with congestive heart failure and their mortality risk.
DOI: 10.1103/PhysRevE.67.062901
Subject Diffusion entropy
Congestive heart failure
Heartbeat


Icona documento 1) Download Document PDF


Icona documento Open access Icona documento Restricted Icona documento Private

 


Per ulteriori informazioni, contattare: Librarian http://puma.isti.cnr.it

Valid HTML 4.0 Transitional