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Poor repertoire General Movements predict some aspects of development outcome at 2 years in very preterm infants
Elisa Beccaria1, Manuela Martino, Eleonora Briatore
1Child Neuropsychiatry Unit, S. Croce and Carle Hospital, Cuneo, Italy. beccaria.e@ospedale.cuneo.it
Insights
A poor repertoire (PR) pattern in preterm infants at 1 month post-term may predict lower neurodevelopmental scores by age 2. This pattern particularly impacts eye and hand coordination, suggesting early assessment value.
Area of Science:
- Neonatal neurology
- Developmental pediatrics
- Movement assessment
Background:
- General Movements (GM) assessment is a sensitive tool for evaluating fragile neonates.
- Absence of fidgety movements at 2-4 months post-term predicts Cerebral Palsy.
- A poor repertoire (PR) pattern during infancy is not reliably predictive of later motor or neurodevelopmental disorders.
Purpose of the Study:
- To investigate if a PR pattern observed at 1 month post-term is associated with diminished neurodevelopmental quotients at 2 years of age.
Main Methods:
- A cohort of 79 very preterm infants (gestational age ≤32 weeks or birth weight ≤1500 g) underwent General Movements evaluation at 1 and 3 months.
- The Griffiths Scales of Mental Development were administered at 2 years to assess neurodevelopmental quotients.
- Infants were categorized into 'poor repertoire pattern' and 'normal pattern' groups for comparative analysis using statistical tests.
Main Results:
- Infants in the PR group exhibited significantly lower Gestational Age, Birth Weight, and Apgar scores at birth.
- The PR group demonstrated lower overall Developmental Quotients at 2 years, with the Eye and Hand Coordination domain (subscale D) being most affected.
- Fidgety movement quality at 3 months showed no correlation with 2-year neurodevelopmental outcomes.
Conclusions:
- A PR pattern at 1 month post-term appears to be a predictor of lower neurodevelopmental scores at 2 years, particularly affecting fine motor skills.
- Further longitudinal follow-up is warranted to determine the persistence of these developmental differences into later childhood.
Background:
Observation of the quality of endogenously generated "General Movements" has been proved to be a reliable and sensitive tool in the assessment of fragile neonates. The absence of fidgety movements at 2-4 months post-term is highly predictive of Cerebral Palsy. On the contrary, the presence of a poor repertoire pattern during the writhing period is not reliable in predicting motor or neurobehavioral disorders at any stage of development.
Aim:
To examine if the presence of a PR pattern at 1 month post-term was associated with lower neurodevelopmental quotients at 2 years.
Study Design:
General Movements evaluation at 1 and 3 months and the Griffiths Scales of Mental Development at 2 years were administered to a sample of very preterm infants. Infants were divided into two groups: poor repertoire pattern group and normal pattern group. Student's t Test and Chi squared test and ANOVA were used to compare neonatal variables and results between the two groups.
Subjects:
79 very preterm infants (birthweight≤1500 g or gestational age≤32 weeks), born January 2003 to December 2006 who had a follow-up at 2 years.
Outcome Measure:
Griffiths developmental quotient at 2 years.
Results:
The Poor Repertoire group had lower Gestational Age, lower Birth Weight, lower Apgar scores at birth and lower Developmental Quotient at 2 years. Eye and Hand Coordination (subscale D) was the domain mostly responsible for such a difference. Quality of fidgety movements (normal or abnormal fidgety) at 3 months did not show any correlation with outcome measures at 2 years.
Conclusion:
The presence of a PR pattern at 1 month post-term seems to predict lower neurodevelopmental scores at 2 years especially in the domain of eye and hand coordination. Longer follow-up is necessary in order to ascertain if such difference will continue to persist at older ages.
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