Changes in cerebral blood volume and cerebral oxygenation during periodic breathing in term infants.

Changes in cerebral blood volume and cerebral oxygenation during periodic breathing in term infants. Research Abstract Details 

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Changes in cerebral blood volume and cerebral oxygenation during periodic breathing in term infants. Abstract Text:

B Urlesberger,G Pichler,E Gradnitzer,F Reiterer,G Zobel,W ,B Urlesberger,G Pichler,E Gradnitzer,F Reiterer,G Zobel,W ,

The present study is an analysis of changes in cerebral oxygenation and cerebral blood volume (CBV) during periodic breathing in healthy term infants by means of near infrared spectroscopy (NIRS). Polygraphy included electrocardiogram, electrooculogram, heart rate, oxygen saturation, side stream capnography, two respiratory effort sensors, a movement sensor, and NIRS. During periodic breathing analysis of behaviour of total haemoglobin (cHbtot), deltaCBV, the haemoglobin oxygenation index (cHbD), and cytochrome oxidase (CytOx) was performed. In ten healthy term infants 30 cycles of periodic breathing with a mean of 10 apnoeas per cycle were analysed. Corresponding cyclical variations of cHbD appeared in 98%, cyclical variations of cHbtot appeared in 42% of all apnoeas. During phases of apnoea, a mean decrease of cHbD of -3.45 micromol/l occurred 1.75 seconds after onset of apnoea, and a mean decrease of cHbtot of -0.79 micromol/occurred 0.74 seconds after onset of apnoea. During these apnoeas, the deltaCBV was -44 microl/100 g brain. During phases of ventilation, there was an increase of cHbD and cHbtot to the pre-apnoeic levels. There was a tendency that CytOx values decreased during periodic breathing, the amount of decrease was -0.32 micromol/l. In conclusion, the present study was able to show for the first time that there is cyclical desaturation and reoxygenation of cerebral blood during periodic breathing. Cyclical changes in CBV in association with periodic apnoea occurred only in 42% of apnoea.

Changes in cerebral blood volume and cerebral oxygenation during periodic breathing in term infants. Publishing Authors By Initials

B Urlesberger,G Pichler,E Gradnitzer,F Reiterer,G Zobel,W ,B Urlesberger,G Pichler,E Gradnitzer,F Reiterer,G Zobel,W ,

For similar diagnosis: diagnostic techniques and procedures: diagnostic imaging: spectroscopy, near-infrared research abstracts see: diagnosis: diagnostic techniques and procedures: diagnostic imaging: spectroscopy, near-infrared research

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Changes in cerebral blood volume and cerebral oxygenation during periodic breathing in term infants. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Neuropediatrics

VOLUME: 31

Page Numbers: 75-81

Journal Abbreviation: Neuropediatrics

ISSN: 0174-304X

DAY: 16

MONTH: Apr

YEAR: 2000

Changes in cerebral blood volume and cerebral oxygenation during periodic breathing in term infants. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 8101187

Changes in cerebral blood volume and cerebral oxygenation during periodic breathing in term infants. Keywords Mesh Terms:

KEYWORDS: Spectroscopy, Near-Infrared

MESH TERMS: physiopathology

Chemical & Substance for Abstract: Changes in cerebral blood volume and cerebral oxygenation during periodic breathing in term infants. Information

Substance Name: Electron Transport Complex IV

Registry Number: EC 1.9.3.1

Grant and Affiliation Information for Changes in cerebral blood volume and cerebral oxygenation during periodic breathing in term infants.

AFFILIATION: Department of Paediatrics, University of Graz, Austria. berndt.urlesberger@kfunigraz.ac.at

Country: GERMANY

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MEDLINETA: Neuropediatrics

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