Differences in pain expression between male and female newborn infants

Differences in pain expression between male and female newborn infants

Autor Guinsburg, Ruth Autor UNIFESP Google Scholar
Peres, C. D. Google Scholar
Almeida, MFB de Google Scholar
Balda, RDX Google Scholar
Berenguel, R. C. Google Scholar
Tonelotto, J. Google Scholar
Kopelman, B. I. Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Resumo The study of neonatal gender differences in pain expression is important since neonatal pain behavior occurs prior to any learned reaction pattern. the objective of this study was to verify the presence of gender differences in pain expression in preterm and term newborn infants. Sixty-five consecutive neonates (37 female and 28 male infants) with gestational age between 28 and 42 weeks and with 25-120 h of Life were studied. Healthy term neonates required a capillary puncture for PKU screening and clinically stable premature infants needed a capillary puncture for glucose dosage. the Neonatal Facial Coding System (NFCS) and the Neonatal Infant Pain Scale (NIPS) were evaluated at bedside prior to the puncture, when patients were at rest, during foot heating; during capillary puncture; and at 1, 3, and 5 min after heel lancing. Results were analyzed by repeated-measures ANOVA followed by the Multiple Comparison Method of Bonferroni. A significant difference among the mean NFCS scores during the six study periods was noted for the whole group of neonates (P < 0.000001). Also, a significant interaction between the NFCS score profile in female and male neonates at the different study periods was observed (P = 0.025). Regarding NIPS, ANOVA showed only a significant difference among the mean NIPS scores during the six study periods for the whole group of neonates (P < 0.000001). No significant interactions between gestational age and time, nor between gestational age and gender were noted, for both NFCS and NIPS. in conclusion, recently born female neonates of all gestational ages expressed more facial features of pain than male infants, during the capillary puncture and 1 min afterwards. Maybe differences in pain processing and/or pain expression among genders may explain this finding. (C) 2000 International Association for the Study of Pain. Published by Elsevier Science B.V. All rights reserved.
Palavra-chave acute pain
newborn infant
gender
Idioma Inglês
Data de publicação 2000-03-01
Publicado em Pain. Amsterdam: Elsevier B.V., v. 85, n. 1-2, p. 127-133, 2000.
ISSN 0304-3959 (Sherpa/Romeo, fator de impacto)
Publicador Elsevier B.V.
Extensão 127-133
Fonte http://dx.doi.org/10.1016/S0304-3959(99)00258-4
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:000085652900016
Endereço permanente http://repositorio.unifesp.br/handle/11600/26259

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