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Effects of Flexed Posture with Boundaries Following Endotracheal Suction in Very Low Birth Weight Infants Yoshie Kondoh 1 1Keio University, Faculty of Nursing and Medical Care Keyword: 極低出生体重児 , 気管内吸引 , 境界付腹臥位屈曲姿勢 , very low birth weight infant , endotracheal suction , flexed posture with boundaries pp.11-20
Published Date 2001/12/15
  • Abstract
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Abstract

 The purpose of this study is to determine differences in behavioral (stress signs and sleep-wake state) responses following endotracheal suction in very low birth weight infants between routine care and flexed posture with boundaries.

 The nine infants in this study had a mean gestational age of 26.96 weeks (ranging for 23 weeks and 6 days to 28 weeks and 6 days) and a mean birth weight of 968.4 grams (ranging for 572 to 1,524 grams).

 Heart rate and arterial oxygen saturation were monitored for estimating autonomic functions, while the motor system parameters were measured visually through observations. The autonomic and motor system variables were integrated and used to trace stress signs. States of sleep were assessed according to the Thoman classification. Observations were made every 2 minutes for 30 minutes, beginning at the baseline and finishing 30 minutes after the end of suctioning.

 A total of 42 sessions were recorded, among which 20 were for the experimental and 22 were for the control group. Two groups did not differ significantly in birth weight and gestational age at birth.

 The results of two-way repeated measures (ANOVA) for each variable indicated that the groups differed significantly in stress signs. There were significant differences in effects of time (F=3.530, p=0.0001), intervention (F=12.476, p=0.01)and intervention-by-time interaction for stress signs (F=3.018, p=0.001). In the experimental group exhibited fewer stress signs than in the control group.

 The time before onset a quiet sleep state differed significantly between the groups (t=-2.529, df=35, p=0.016). In the experimental group was significantly shorter time than in the control group.

 The flexed posture in the prone position with boundaries around the infant's body are needed to help the very low birth weight infants enhance self-regulatory behavior to maintain a behavioral integrity.


Copyright © 2001, Japan Academy of Nursing Science. All rights reserved.

基本情報

電子版ISSN 2185-8888 印刷版ISSN 0287-5330 日本看護科学学会

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