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Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
[The developmental effects of an early intervention program for very low birthweight infants]
S Ogi1, K Arisawa, T Takahashi
1Department of Rehabilitation, Nagasaki University Hospital, Nagasaki.
Insights
An early intervention program (EIP) significantly improved neurobehavioral development in very low birthweight infants. This Neonatal Behavioral Assessment Scale-based intervention enhanced infant organization and developmental progress, showing better outcomes on key assessments.
Area of Science:
- Neonatal development
- Developmental pediatrics
- Behavioral science
Background:
- Premature infants, particularly those with very low birthweight, face risks for neurodevelopmental challenges.
- Early identification and intervention are crucial for optimizing developmental trajectories in vulnerable neonates.
Purpose of the Study:
- To evaluate the efficacy of an early intervention program (EIP) aimed at enhancing neonatal behavioral organization and developmental progress in very low birthweight infants.
Main Methods:
- A cohort of 48 very low birthweight infants (< or = 1,500 gms) was studied.
- The experimental group (n=30) received a Neonatal Behavioral Assessment Scale (NBAS)-based EIP for 44 weeks, starting at 38 weeks postmenstrual age.
- The control group (n=18, historical) received standard care. Developmental outcomes were assessed using NBAS and Bayley Scales, with multivariate analyses adjusting for baseline variables.
Main Results:
- Infants in the EIP group demonstrated significantly higher scores in NBAS orientation, motor performance, state range, and state regulation tasks compared to the control group.
- The EIP group also showed significantly higher Bayley Mental and Psychomotor Developmental Indices at 12 months corrected age.
- Multivariate analyses confirmed the EIP's positive impact, controlling for potential confounding factors.
Conclusions:
- The early intervention program (EIP) proved effective in promoting neurobehavioral development in very low birthweight infants.
- NBAS-based interventions can positively influence key developmental domains in preterm neonates.
- EIP represents a valuable strategy for improving long-term outcomes in high-risk infant populations.
Abstract:
We assessed the efficacy of an early intervention program (EIP) designed to promote the neonatal behavioral organization and developmental progress in infants born prematurely. The study subjects consisted of 48 very low birthweight infants (< or = 1,500 gms) who received care in NICU of Nagasaki University Hospital, Nagasaki, Japan. During 1993-1996, the experimental group (n = 30) received the NBAS (Neonatal Behavioral Assessment Scale) based intervention combined with a therapeutic program (EIP), for 44 weeks starting from 38 weeks of postmenstrual age. The control group (historical control, n = 18) received the standard medical-nursing care without EIP during 1990-1992. Developmental outcome was assessed in both groups using the NBAS examination after EIP at 44 weeks of postmenstrual age, and the Bayley Scales at 12 months corrected age. Multivariate analyses were performed to adjust for baseline variables that might be associated with the developmental outcome: sex, appropriate or light for dates infant, birthweight, gestational age, Apgar score at 1 minute, duration of intubation, and NBAS cluster score before EIP. In the NBAS examination after EIP, the experimental group achieved significantly higher scores in orientation, motor performance, state range and state regulation tasks than the control group. Furthermore, the experimental group showed significantly higher Bayley Mental and Psychomotor Developmental Indices compared with the control group. These results suggested that EIP was effective in promoting the neonatal neurobehavioral development of very low birthweight infants.
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