Document Detail

Does the monitoring method influence stability of oxygenation in preterm infants? A randomised crossover study of saturation versus transcutaneous monitoring.
MedLine Citation:
PMID:  18285374     Owner:  NLM     Status:  MEDLINE    
INTRODUCTION: Hyperoxia and variable oxygenation are associated with morbidity in preterm infants. The optimal range of oxygen tensions is not known. This study aimed to determine whether care based on transcutaneous oxygen tension (TcPO2) or saturation (SpO2) monitoring is associated with less time spent with high oxygen tension and less variability of oxygenation. METHODS: SpO2 and TcPO2 were measured simultaneously during two 3-h study periods allocated in random order. During one period supplemental oxygen was adjusted according to TcPO2 (target range 6.0-9.0 kPa) and during the other according to SpO2 (target range 86-94%). During each period, readings from the second monitor were not displayed. Both TcPO2 and SpO2 were downloaded every second. For each period the mean level and the variability (standard deviation) of SpO2 and TcPO2 and the percentage of time spent above and below target range were calculated and compared. RESULTS: 19 infants, 13 ventilated and 6 on continuous positive airway pressure, were studied at mean corrected gestational age of 27.2 weeks and mean postnatal age of 6.8 days. Their mean fraction of inspired oxygen at the start of the study was 0.34. Care based on SpO2 monitoring was associated with more time spent with high oxygen tension (median increase 2.62%, p = 0.01), more time with low oxygen tension (median increase 17.41%, p = 0.01), more variability in oxygen tension (median increase 0.28 kPa, p = 0.02) and more variability in oxygen saturation (median increase 0.82%, p = 0.01) than care based on TcPO2 monitoring. CONCLUSION: Within the target ranges studied SpO2 monitoring was associated with significantly more variable oxygenation than TcPO2 monitoring.
D Quine; B J Stenson
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Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial     Date:  2008-02-19
Journal Detail:
Title:  Archives of disease in childhood. Fetal and neonatal edition     Volume:  93     ISSN:  1468-2052     ISO Abbreviation:  Arch. Dis. Child. Fetal Neonatal Ed.     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2008-08-25     Completed Date:  2008-09-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9501297     Medline TA:  Arch Dis Child Fetal Neonatal Ed     Country:  England    
Other Details:
Languages:  eng     Pagination:  F347-50     Citation Subset:  AIM; IM    
Neonatal Unit, Simpson Centre for Reproductive Health, Royal Infirmary of Edinburgh, Edinburgh EH16 4SU, Scotland, UK.
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MeSH Terms
Blood Gas Monitoring, Transcutaneous / methods*
Cross-Over Studies
Infant, Newborn
Infant, Premature
Intensive Care, Neonatal / methods
Oxygen Inhalation Therapy / methods*
Retinopathy of Prematurity / prevention & control*
Sensitivity and Specificity
Treatment Outcome
Comment In:
Arch Dis Child Fetal Neonatal Ed. 2008 Sep;93(5):F330-1   [PMID:  18723778 ]

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