Changes of heart rate complexity during weaning from mechanical ventilation

Author

Papaioannou, Vasilios E. ; Chouvarda, Ioanna G. ; Maglaveras, Nikos K. ; Pneumatikos, Ioannis A.

Author_Institution

Intensive Care Unit, Democritus Univ. of Thrace, Alexandroupolis, Greece

fYear

2010

fDate

26-29 Sept. 2010

Firstpage

573

Lastpage

576

Abstract

The aim of this study was to investigate heart rate (HR) variability in patients with weaning failure or success, using both linear and nonlinear techniques. Thirty-two surgical patients were enrolled in the study. Signals were analyzed for 10 minutes during two phases: 1. pressure support (PS) ventilation (15-20 cm H₂O) and 2. weaning trials with PS: 5 cm H₂O. Low and high frequency (LF, HF) components of HR signals, HR multiscale entropy (MSE) and al exponent derived from detrended fluctuation analysis (DFA) were computed in all patients and during the two phases of PS. Weaning failure patients exhibited significantly decreased LF, HF and al exponent, whereas MSE increased both between and within groups.

Keywords

electrocardiography; ventilation; HR multiscale entropy; HR signals; detrended fluctuation analysis; electrocardiographic signals; heart rate complexity; heart rate variability; linear techniques; mechanical ventilation; nonlinear techniques; pressure support ventilation; surgical patients; time 10 min; weaning failure; Complexity theory; Entropy; Heart rate; Software; Time series analysis; Ventilation; Water;

fLanguage

English

Publisher

ieee

Conference_Titel

Computing in Cardiology, 2010

Conference_Location

Belfast

ISSN

0276-6547

Print_ISBN

978-1-4244-7318-2

Type

conf

Filename

5738037