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摘要
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Background: Sleep, a fundamental human need and the primary behavioral state of newborns, plays a critical role
in brain maturation and development and, in particular, influences the growth of premature infants. However, sleep in
premature infants is frequently disturbed and interrupted during their stay in intensive care units, and interventions
designed to improve sleep quality during hospitalization have been inadequately investigated.
Purpose: This study was designed to examine the impact of cyclic light exposure on sleep quality in premature
infants during hospitalization.
Methods: This randomized controlled trial was conducted using a repeated measures design on a sample of 68
premature infants born between 28 to 36 weeks of gestation. The experimental group was exposed to cyclic lighting
starting at 32 weeks of gestation during their NICU stay, while the control group received standard care. The sleep
data were collected using actigraphy, with measurements taken at two time points: pre-intervention (pre-test) and
immediately prior to discharge (post-test). Data analysis was conducted using generalized estimating equations.
Results: The intervention group reported a significantly greater pre-test / post-test increase in terms of total
nighttime sleep duration than the control group (B = 64.52, p = .031). Moreover, the improvement in nighttime sleep
efficiency between the two time points in the intervention group (8.92%, p = .032) was significantly greater than in
the control group.
Conclusion/ Implications for Practice: The findings suggest cyclic lighting enhances both total nighttime sleep
duration and sleep efficiency in premature infants, improving sleep quality during hospitalization. These results
informs clinical practice through encouraging healthcare providers to prioritize sleep care for hospitalized premature
infants. Implementing cyclic lighting may support the development of more-optimal sleep cycles in premature infants,
fostering overall infant development and improving quality of care. |
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