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A Computerized Quantitative and Descriptive Analysis of Facial Motion of Preterm Infants in Heel Stick: The Difference in Response Between Disinfection and Heel Stick Akiko Abe 1 , Kyoko Yokoo 2 1Doctoral Program, Health Science Major, Graduate School of Health Science, Hiroshima University 2Division of Nursing, Institute of Health Science, Faculty of Medicine, Hiroshima University Keyword: 早産児 , 顔面表情運動 , コンピュータ画像解析 , 痛み , 足底穿刺 , preterm infant , facial motion , computerized quantitative analysis , pain , heel stick pp.461-469
Published Date 2003/10/1
DOI https://doi.org/10.11477/mf.1681100219
  • Abstract
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 The purpose of this study was to clarify differences of response to disinfection and heel stick by computerized quantitative analysis of upper facial motion, and to describe specified facial motion in response to heel stick.

 The subjects were 4 preterm infants who were born between 26 and 31 weeks of gestation and were hospitalized in NICU. The data was collected between 29 and 32 weeks of postmenstrual age, and 5 sessions were analyzed. Each session was composed of 3 phases - quiet, disinfection, and heel stick. Facial motion was videotaped and analyzed by computerized quantitative analysis. We calculated the area of shape formed with 4 points on the face. Facial motion was analyzed in terms of appearance of facial motion (this means the value of area exceeding〔mean±2SD〕calculated by the value of area in 2 seconds just before disinfection and heel stick were done, that is, remarkable facial motion appears), and ratio of change in maximum facial motion (calculated based on the area in the quiet phase), and their patterns.

 The results were as follows :

 1) In this study, quite different responses between disinfection and heel stick were shown. That is, respondent pattern in disinfection was that the value of area exceeded〔mean±2SD〕, only temporarily, and changed within〔mean±2SD〕.

 Respondent pattern in heel stick was that the value of area exceeded〔mean-2SD〕, and showed contraction of the area into the center of face.

 2) In our study, differences in response between disinfection and heel stick could be described continuously and quantitatively in full detail.


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電子版ISSN 1882-1405 印刷版ISSN 0022-8370 医学書院

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