Neurobehavior of preterm infants from 32 to 48 weeks post-menstrual age

Author(s)

de Souza Perrella, Vivien Valente ^[1] ; Carvalho de Moraes, Barros Marina ^[1] ; Sanudo, Adriana ^[2] ; Guinsburg, Ruth ^[1]

Affiliation

^[1] Univ Fed Sao Paulo, Escola Paulista Med, Dept Pediat, Div Neonatal Med, Sao Paulo, SP - Brazil

^[2] Univ Fed Sao Paulo, Escola Paulista Med, Dept Prevent Med, Sao Paulo, SP - Brazil

• Document type: Journal article
• Source: Journal of Perinatology; v. 39, n. 6, p. 800-807, JUN 2019.
• Web of Science Citations: 0

Abstract

Aim: Evaluate prospectively the neurobehavior of preterm infants (PT). Study design: Cohort of PT (gestational age(GA) <32weeks), evaluated biweekly from 32 to 48 weeks post-menstrual age (PMA) by NICU Network Neurobehavioral Scale (NNNS). Scores were compared by repeated Measures ANOVA. Scores of PT were compared to those of full-term infants, matched for gender by ANOVA. Results: 39 PT (mean +/- SD: GA 29.2 +/- 2.0 weeks; birthweight 1100 +/- 331g) were studied. As PMA progressed, PT showed increasing scores in habituation, attention, arousal, regulation, maneuvers for orientation, quality of movements and hypertonicity, and decreasing scores in excitability, lethargy, non-optimal reflexes, asymmetry, hypotonicity, and signs of stress/withdrawal. At 40 weeks PMA, PT were similar to term neonates assessed in the first days of life, except for less habituation, regulation capacity and excitability, and more hypotonia. Conclusion: At 40 weeks PMA, PT reached the performance of full-term neonates evaluated in the first days of life in most neurobehavior domains. (AU)

• FAPESP's process: 13/05647-2 - Neurobehavior development of preterm infants with gestational age less than 32 weeks and correlation with brain MRI changes in post-conceptual age of 40 weeks
• Grantee: MARINA CARVALHO DE MORAES BARROS
• Support Opportunities: Regular Research Grants