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Influence of light exposure at nighttime on sleep development and body growth of preterm infants

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Title: Influence of light exposure at nighttime on sleep development and body growth of preterm infants
Authors: Kaneshi, Yosuke Browse this author
Ohta, Hidenobu Browse this author →KAKEN DB
Morioka, Keita Browse this author
Hayasaka, Itaru Browse this author
Uzuki, Yutaka Browse this author
Akimoto, Takuma Browse this author
Moriichi, Akinori Browse this author
Nakagawa, Machiko Browse this author
Oishi, Yoshihisa Browse this author
Wakamatsu, Hisanori Browse this author
Honma, Naoki Browse this author
Suma, Hiroki Browse this author
Sakashita, Ryuichi Browse this author
Tsujimura, Sei-ichi Browse this author
Higuchi, Shigekazu Browse this author →KAKEN DB
Shimokawara, Miyuki Browse this author
Cho, Kazutoshi Browse this author →KAKEN DB
Minakami, Hisanori Browse this author →KAKEN DB
Issue Date: 15-Feb-2016
Publisher: Nature Publishing Group
Journal Title: Scientific reports
Volume: 6
Start Page: 21680
Publisher DOI: 10.1038/srep21680
Abstract: Previous studies have demonstrated that a light-dark cycle has promoted better sleep development and weight gain in preterm infants than constant light or constant darkness. However, it was unknown whether brief light exposure at night for medical treatment and nursing care would compromise the benefits brought about by such a light-dark cycle. To examine such possibility, we developed a special red LED light with a wavelength of > 675 nm which preterm infants cannot perceive. Preterm infants born at < 36 weeks' gestational age were randomly assigned for periodic exposure to either white or red LED light at night in a light-dark cycle after transfer from the Neonatal Intensive Care Unit to the Growing Care Unit, used for supporting infants as they mature. Activity, nighttime crying and body weight were continuously monitored from enrolment until discharge. No significant difference in restactivity patterns, nighttime crying, or weight gain was observed between control and experimental groups. The data indicate that nursing care conducted at 3 to 4-hour intervals exposing infants to light for < 15 minutes does not prevent the infants from developing circadian rest-activity patterns, or proper body growth as long as the infants are exposed to regular light-dark cycles.
Type: article
Appears in Collections:医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 水上 尚典

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