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[Evaluation of early cognitive ability of infants born preterm by near-infrared spectroscopy].
Hou, Xin-Lin; Zhou, Cong-Le; Huang, Lan; Ding, Hai-Shu; Tang, Ze-Zhong; Jiang, Yi.
Afiliação
  • Hou XL; Department of Biomedical Engineering, Tsinghua University, Beijing 100084, China. houxinlin66@sohu.com
Zhongguo Dang Dai Er Ke Za Zhi ; 8(5): 361-4, 2006 Oct.
Article em Zh | MEDLINE | ID: mdl-17052390
OBJECTIVE: To compare the differences in cerebral oxygenation responses between the infants born preterm and full-term infants and to evaluate the early cognitive ability of infants born preterm. METHODS: Cerebral oxygenation after light stimulation was detected by near infrared spectroscopy (NIRS) in preterm infants at 3 or 6 months corrected gestational age (GA). The results were compared with those of age-matched infants born at term. RESULTS: The start and peak response time of cerebral oxygenation occurring after light stimulation in preterm infants at 3 months corrected GA was 17.2 +/- 5.2 and 38.4 +/- 9.6 seconds respectively, which were significantly longer than in age-matched term infants (13.1 +/- 2.7 and 28.9 +/- 5.0 seconds respectively) (P < 0.05). The maximum response value of hemoglobin, oxyhemoglobin and regional oxygen saturation of the preterm infants at 3 months corrected GA was (1.2 +/- 0.5)%, (1.5 +/- 0.6)%, and (1.3 +/- 0.4)% respectively , which were significantly lower than that of the term infants [(2.3 +/- 0.3)%, (2.8 +/- 0.3)% and (2.4 +/- 0.5)% respectively] (P < 0.05). Cerebral oxygenation responses to light stimulation in preterm infants examined at 6 months corrected GA were not significantly different from age-matched term infants. CONCLUSIONS: Cerebral oxygenation responses to light stimulation in infants born preterm at 3 months corrected GA are not as good as age-matched term infants, but were close to the level of age-matched term infants at 6 months corrected GA. This suggests that the early cognitive ability of preterm infants before 3 months corrected GA might fall behind age-matched term infants.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cognição Limite: Humans / Newborn Idioma: Zh Revista: Zhongguo Dang Dai Er Ke Za Zhi Ano de publicação: 2006 Tipo de documento: Article País de afiliação: China
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cognição Limite: Humans / Newborn Idioma: Zh Revista: Zhongguo Dang Dai Er Ke Za Zhi Ano de publicação: 2006 Tipo de documento: Article País de afiliação: China