Pediatrics & Therapeutics
Open Access

Assessment of nocturnal sleep architecture by actigraphy and one-channel electroencephalography in early infancy

5^th International Conference on Pediatric Nursing & Healthcare

July 11-12, 2016 Cologne, Germany

Hideya Kodama

Akita Graduate School of Medicine and Faculty of Medicine, Japan

Keynote: Pediat Therapeut

Abstract :

Objective: To elucidate characteristic sleep architecture of different nocturnal sleep patterns in early infancy. Methods: Participants were 27 infants at the same conceptional age of 3-4 months. Nocturnal sleep of these infants was monitored at home by simultaneously using actigraphy and a one-channel portable EEG device. According to the infants' activity for 6 hours from sleep onset, each night's sleep pattern was classified into three categories: sleeping through the night (STN), sleeping with weak signals (crying/fuss episodes <10 minutes or fed), and sleeping with strong signals (crying/fuss episodes�10 minutes). Associations of sleep patterns with sleep variables (percentage of time in sleep stages, pattern of slowwave sleep (SWS) recurrence, etc.) were investigated. Results: Analysis was conducted in 95 nights. STN pattern (n=36) was characterized by suppressed body movements while EEG represented a state of wakefulness. Weak signal pattern (n=27) tended to indicate rich and regular distributions of SWS across the night. Strong signal pattern (n=32) was characterized by reduced sleep time, although the amount of SWS was not reduced to that degree. Exclusively breastfed infants accounted for 78% of weak signal patterns, whereas formula-feeding infants, 67% of STN patterns. In several nights with STN or strong signal pattern, SWS did not occur in >50% of the sleep cycles. Multiple regression analysis showed that exclusive breastfeeding may increase the proportion of SWS in non-REM sleep. Conclusions: Each nocturnal sleep pattern was associated with some sleep architecture, part of which would be attributed to infant's feeding methods.

Biography :

Hideya Kodama graduated from Akita university of Medicine in 1982 and promoted to a professor of the department of maternity child nursing at Akita university graduate school of medicine and faculty of medicine in 2000. Since then, he has studied about a human circadian rhyme, including a sleep-wake cycle, a melatonin rhythm and regulation of autonomic nervous system and a body thermal rhythm, with nurses who entered his Post-doctoral course. Now, he manages several research projects of the doctoral course regarding this issue, and his research subjects include early infants, pregnant women puerperant and adolescent girls.

Email: kodamah@hs.akita-u.ac.jp