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Oxygen Saturation Targeting in Preterm Infants Receiving Continuous Positive Airway Pressure
Royal Hobart Hospital, Australia University of Tasmania, Australia .
Royal Hobart Hospital, Australia University of Tasmania, Australia .
University of Tasmania, Australia .
Royal Hobart Hospital, Australia University of Tasmania, Australia .
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2014 (English)In: Journal of Pediatrics, ISSN 0022-3476, E-ISSN 1097-6833, Vol. 164, no 4, 730-736 p.Article in journal (Refereed) Published
Abstract [en]

Objective The precision of oxygen saturation (SpO(2)) targeting in preterm infants on continuous positive airway pressure (CPAP) is incompletely characterized. We therefore evaluated SpO(2) targeting in infants solely receiving CPAP, aiming to describe their SpO(2) profile, to document the frequency of prolonged hyperoxia and hypoxia episodes and of fraction of inspired oxygen (FiO(2)) adjustments, and to explore the relationships with neonatal intensive care unit operational factors. Study design Preterm infants less than37 weeks gestation in 2 neonatal intensive care units were studied if they were receiving CPAP and in supplemental oxygen at the beginning of each 24-hour recording. SpO(2), heart rate, and FiO(2) were recorded (sampling interval 1-2 seconds). We measured the proportion of time spent in predefined SpO(2) ranges, the frequency of prolonged episodes (greater than= 30 seconds) of SpO(2) deviation, and the effect of operational factors including nurse-patient ratio. Results A total of 4034 usable hours of data were recorded from 45 infants of gestation 30 (27-32) weeks (median [IQR]). When requiring supplemental oxygen, infants were in the target SpO(2) range (88%-92%) for only 31% (19%-39%) of total recording time, with 48 (6.9-90) episodes per 24 hours of severe hyperoxia (SpO(2) greater than= 98%), and 9.0 (1.6-21) episodes per 24 hours of hypoxia (SpO(2) less than80%). An increased frequency of prolonged hyperoxia in supplemental oxygen was noted when nurses were each caring for more patients. Adjustments to FiO(2) were made 25 (16-41) times per day. Conclusion SpO(2) targeting is challenging in preterm infants receiving CPAP support, with a high proportion of time spent outside the target range and frequent prolonged hypoxic and hyperoxic episodes.

Place, publisher, year, edition, pages
Elsevier , 2014. Vol. 164, no 4, 730-736 p.
National Category
Social Sciences
URN: urn:nbn:se:liu:diva-106128DOI: 10.1016/j.jpeds.2013.11.072ISI: 000333258900015OAI: diva2:714037
Available from: 2014-04-25 Created: 2014-04-24 Last updated: 2014-04-25

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