Elser, H. E. and Holditch-Davis, D. and Levy, J. and Brandon, D. H., The effects of environmental noise and infant position on cerebral oxygenation.,
Adv Neonatal Care, vol. 12 Suppl 5
(October, 2012),
pp. S18-S27, ISSN 1536-0911 [22968001], [doi]
(last updated on 2016/01/06)
Abstract:
PURPOSE: To assess how different infant positions and peak sound levels affected cerebral oxygen saturation over time. SUBJECTS: Twenty-four premature infants who were born less than 32 weeks' gestational age without congenital cardiac, neurologic, and gastrointestinal anomalies. DESIGN: Repeated-measures design with the first observation between 2 and 48 hours of life; once again between 49 and 96 hours of life; on day of life 7; and every 7 days thereafter until discharge home, transfer to another hospital, or 40 weeks postmenstrual age, whichever came first. METHODS: Continuous sound levels (decibels) were obtained and 2 infant positions were performed while measuring cerebral oxygen saturation during 40-minute observation periods. MAIN OUTCOME MEASURES: Effect of peak sound and differences in infant position on cerebral oxygen saturation. RESULTS: Peak sound levels 5 dB above the average ambient sound level did not significantly change cerebral oxygen saturation values. Differences in cerebral oxygenation were significantly less when infants were changed from a supine, head midline position to a right lateral, 15° head elevation compared with a left lateral, 0° elevation position. CONCLUSIONS: Aspects of the current neonatal intensive care unit environment do not appear to affect cerebral oxygen saturation.
Keywords:
Brain • Caffeine • Central Nervous System Stimulants • Head • Humans • Infant, Newborn • Intensive Care Units, Neonatal • Linear Models • Noise* • Oximetry • Oxygen • Patient Positioning* • Sampling Studies • Spectroscopy, Near-Infrared • Supine Position* • blood supply* • blood* • methods • therapeutic use
