Variability of pulse signal frequency obtained using nocturnal pulse oximetry in patients with sleep apnoea/hypoapnoea syndrome

INTRODUCTIONThe measurement of central tendency (MCT) is a non-linear analysis technique which applied to second order differences diagrams enables the degree of variability to be quantified in a data series. In the present study an attempt is made to quantify and characterise the changes in heart r...

Full description

Saved in:
Bibliographic Details
Published in:Archivos de bronconeumología (English ed.) 2010-03, Vol.46 (3), p.116-121
Main Authors: del Campo Matía, Félix, Hornero Sánchez, Roberto, Zamarrón Sanz, Carlos, Alvarez González, Daniel, Víctor Marcos Martín, J
Format: Article
Language:Spanish
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:INTRODUCTIONThe measurement of central tendency (MCT) is a non-linear analysis technique which applied to second order differences diagrams enables the degree of variability to be quantified in a data series. In the present study an attempt is made to quantify and characterise the changes in heart rate obtained by pulse oximetry in patients with a clinical suspicion of sleep apnoea/hypoapnoea syndrome (SAHS) using the MCT and to evaluate its diagnostic use.PATIENTS AND METHODSA total of 187 patients were included in the study, on whom a nocturnal polysomnographic and pulse oximetry study was performed. To evaluate the variability of the heart rate the MCT applied to graphs of second order differences obtained from the heart rate record.RESULTPatients with SAHS had a higher heart rate variability than patients without SAHS (0.449 vs. 0.666, P
ISSN:1579-2129
DOI:10.1016/j.arbres.2009.11.004