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Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
Neurodevelopmental outcomes in adolescents born very and extremely preterm: a prolonged follow-up from a
Emanuela Claudia Turco1, Laura Caiazza2, Martina Gnazzo2
1Child Neuropsychiatry Unit, Department of Medicine and Surgery, University of Parma, Parma, Italy.
Insights
Early developmental assessments between 12-18 months predict adolescent outcomes for very preterm infants. This highlights the importance of ongoing neurodevelopmental monitoring for preterm survivors.
Area of Science:
- Neuroscience
- Developmental Pediatrics
- Public Health
Background:
- Preterm birth is a significant global health issue with lasting neurodevelopmental consequences.
- Children born very or extremely preterm face heightened risks for cognitive, motor, and emotional challenges into adolescence.
Purpose of the Study:
- To investigate the predictive value of early developmental assessments on long-term outcomes in adolescents born very or extremely preterm.
- To identify critical developmental windows for predicting cognitive and motor function in this population.
Main Methods:
- A retrospective and prospective observational study of 29 adolescents (14-18 years) born very/extremely preterm.
- Utilized neurological exams, cognitive testing (Raven's Progressive Matrices), motor assessments (Movement ABC-2/Brief Motor Scale), and early Bayley Scales scores (3-36 months).
Main Results:
- Early cognitive scores (12-18 months) strongly predicted adolescent intellectual functioning (MDI vs. Raven QI: ρ=0.705-0.763, p<.01).
- Early motor scores showed weaker prediction, with only the 18-month PDI being significant (ρ=0.583, p=.022).
- Half of extremely preterm and a third of very preterm adolescents had neurodevelopmental diagnoses; visuomotor coordination correlated negatively with gestational age (r=-0.57).
Conclusions:
- The 12-18 month developmental assessment period is crucial for predicting cognitive and motor outcomes in preterm infants.
- Supports the need for structured, multidisciplinary surveillance of preterm survivors throughout adolescence.
Introduction:
Preterm birth remains a major global health concern, with growing evidence linking it to long-term neurodevelopmental and psychiatric sequelae. Children born very or extremely preterm are at increased risk for cognitive, motor, and emotional difficulties that may persist into adolescence.
Materials And Methods:
We conducted a retrospective and prospective observational study involving 29 adolescents (aged 14-18 years) born very or extremely preterm between 2005 and 2011 at the University Hospital of Parma. Participants underwent in-person neurological examinations, cognitive testing (Raven's Progressive Matrices), and motor assessments (Movement ABC-2 or Brief Motor Scale), alongside retrieval of early developmental scores from the Bayley Scales (administered between 3 and 36 months).
Results:
Early cognitive assessments showed strong predictive associations with later intellectual functioning: MDI scores at 12 and 18 months correlated significantly with Raven QI equivalent scores in adolescence (ρ = 0.705 and ρ = 0.763, respectively, p < .01), while the association at 3 months was weaker and non-significant (ρ = 0.410, p = .052). In contrast, early motor scores showed inconsistent predictive associations, with only the 18-month PDI reaching significance (ρ = 0.583, p = .022). Psychiatric or neurodevelopmental diagnoses were present in 50% of extremely preterm and 33.3% of very preterm adolescents. Visuomotor coordination showed the strongest negative correlation with gestational age among motor domains (r = -0.57).
Conclusions:
These findings suggest that the 12-18 month developmental assessment window carries meaningful prognostic value for both cognitive and motor outcomes in preterm survivors, and support the implementation of structured multidisciplinary surveillance extending into adolescence.
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