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Table of Contents
Vol. 83, No. 1, 2003
Issue release date: January 2003
Section title: Original Paper
Biol Neonate 2003;83:6–11
(DOI:10.1159/000067006)

Reproducibility of Cerebral Near Infrared Spectroscopy in Neonates

Menke J.a · Voss U.b · Möller G.b · Jorch G.b
aRadiodiagnostik, Universitäts-Kliniken Homburg, bUniversitäts-Kinderklinik Magdeburg, Deutschland

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: May 28, 2002
Published online: January 17, 2003
Issue release date: January 2003

Number of Print Pages: 6
Number of Figures: 1
Number of Tables: 3

ISSN: 1661-7800 (Print)
eISSN: 1661-7819 (Online)

For additional information: http://www.karger.com/NEO

Abstract

Near infrared spectroscopy (NIRS) allows to study cerebral hemodynamics and oxygenation in neonates, which may be useful for early detection of cerebral hypoxemia. So far this method is not reliable enough to be used clinically. Reproducibility is one of the prerequisites for reliable quantitative monitoring. The aim of this study was to assess the reproducibility of the NIRS parameters HbO2 and HbD (oxygenated and deoxygenated hemoglobin concentration) and the derived NIRS parameters HbT (tissue hemoglobin concentration, HbT = HbO2 + HbD) and rSO2 (regional cerebral oxygen saturation, rSO2 = HbO2/HbT). Two observers repeated a total number of 500 measurements in 25 neonates. Additionally, a baseline measurement was done to assess the physiological variation in every neonate. For all NIRS parameters, the inter-patient variance contributed most to the total variance, while the interobserver variance was the smallest variance component. The cerebral oxygen saturation parameter rSO2 showed a good reproducibility, with an inter-measurement variance slightly but not significantly higher than the physiological baseline variation. The NIRS concentration parameters HbO2, HbD, and HbT were less reproducible, with significant variation due to repeated sensor replacement. However, for cerebral oximetry rSO2 is likely to be more important than the other NIRS parameters, so that NIRS has the potential to become a quantitative cerebral monitoring method.

© 2003 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: May 28, 2002
Published online: January 17, 2003
Issue release date: January 2003

Number of Print Pages: 6
Number of Figures: 1
Number of Tables: 3

ISSN: 1661-7800 (Print)
eISSN: 1661-7819 (Online)

For additional information: http://www.karger.com/NEO


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