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Characterizing light-dark cycles in the Neonatal Intensive Care Unit: a retrospective observational study.
Van der Linden, Isabelle A; Hazelhoff, Esther M; De Groot, Eline R; Vijlbrief, Daniel C; Schlangen, Luc J M; De Kort, Yvonne A W; Vermeulen, Marijn J; Van Gilst, Demy; Dudink, Jeroen; Kervezee, Laura.
Afiliación
  • Van der Linden IA; Department of Neonatology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, Netherlands.
  • Hazelhoff EM; Laboratory for Neurophysiology, Department of Cellular and Chemical Biology, Leiden University Medical Center, Leiden, Netherlands.
  • De Groot ER; Department of Neonatology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, Netherlands.
  • Vijlbrief DC; Department of Neonatology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, Netherlands.
  • Schlangen LJM; Department of Industrial Engineering and Innovation Sciences, Eindhoven University of Technology, Eindhoven, Netherlands.
  • De Kort YAW; Department of Industrial Engineering and Innovation Sciences, Eindhoven University of Technology, Eindhoven, Netherlands.
  • Vermeulen MJ; Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Erasmus MC-Sophia Children's Hospital, Rotterdam, Netherlands.
  • Van Gilst D; Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Erasmus MC-Sophia Children's Hospital, Rotterdam, Netherlands.
  • Dudink J; Department of Neonatology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, Netherlands.
  • Kervezee L; Laboratory for Neurophysiology, Department of Cellular and Chemical Biology, Leiden University Medical Center, Leiden, Netherlands.
Front Physiol ; 14: 1217660, 2023.
Article en En | MEDLINE | ID: mdl-37664437
Objectives: To characterize bedside 24-h patterns in light exposure in the Neonatal Intensive Care Unit (NICU) and to explore the environmental and individual patient characteristics that influence these patterns in this clinical setting. Methods: We conducted a retrospective cohort study that included 79 very preterm infants who stayed in an incubator with a built-in light sensor. Bedside light exposure was measured continuously (one value per minute). Based on these data, various metrics (including relative amplitude, intradaily variability, and interdaily stability) were calculated to characterize the 24-h patterns of light exposure. Next, we determined the association between these metrics and various environmental and individual patient characteristics. Results: A 24-h light-dark cycle was apparent in the NICU with significant differences in light exposure between the three nurse shifts (p < 0.001), with the highest values in the morning and the lowest values at night. Light exposure was generally low, with illuminances rarely surpassing 75 lux, and highly variable between patients and across days within a single patient. Furthermore, the season of birth and phototherapy had a significant effect on 24-h light-dark cycles, whereas no effect of bed location and illness severity were observed. Conclusion: Even without an official lighting regime set, a 24-h light-dark cycle was observed in the NICU. Various rhythmicity metrics can be used to characterize 24-h light-dark cycles in a clinical setting and to study the relationship between light patterns and health outcomes.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Tipo de estudio: Observational_studies / Risk_factors_studies Idioma: En Revista: Front Physiol Año: 2023 Tipo del documento: Article País de afiliación: Países Bajos

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Tipo de estudio: Observational_studies / Risk_factors_studies Idioma: En Revista: Front Physiol Año: 2023 Tipo del documento: Article País de afiliación: Países Bajos