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Clinical Trial
. 2000 Jan-Feb;20(1):17-20.
doi: 10.1038/sj.jp.7200301.

Does supine positioning increase apnea, bradycardia, and desaturation in preterm infants?

Affiliations
Clinical Trial

Does supine positioning increase apnea, bradycardia, and desaturation in preterm infants?

D J Keene et al. J Perinatol. 2000 Jan-Feb.

Abstract

Objective: The purpose of this study was to determine the effects of prone and supine positioning on the cardiorespiratory stability of preterm infants with apnea and bradycardia.

Methods: A total of 22 preterm infants with symptomatic apnea and bradycardia (gestational age of 26.9 +/- 1.8 weeks and birth weight of 865 +/- 235 gm) were monitored for 24 hours (in four sequential 6-hour blocks) for apnea, bradycardia, and oxygen desaturation in alternating positions (prone or supine) following randomization. Postconceptional age at the time of study was 31.9 +/- 3.0 weeks. Respiratory rate, heart rate, and transcutaneous oxygen saturation were continuously monitored. All episodes of apnea (> or = 10 seconds), bradycardia (< 100 beats per minute), and oxygen desaturation (< 90%) were recorded on an event monitor. Episodes of apnea, bradycardia, and oxygen desaturation were defined as clinically significant if the following criteria were met: apnea, > or = 15 seconds; bradycardia, < 90 beats per minute; and oxygen desaturation, < 80%. All other recorded episodes were considered mild. The episodes were analyzed for statistical significance using the paired t-test.

Results: No significant differences (p > 0.05) in the incidence of clinically significant apnea, bradycardia, or desaturation between supine and prone positions were seen in these preterm infants.

Conclusion: Our results suggest that the cardiorespiratory stability of preterm infants is not significantly compromised by supine positioning.

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