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Updated: Jun 28, 2026

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
An overview of mortality and sequelae of preterm birth from infancy to adulthood
1Department of Paediatrics, McMaster University, Hamilton, ON, Canada. saigal@mcmaster.ca
Insights
Infants born prematurely face long-term health risks, including developmental and behavioral issues. However, most very preterm infants adapt well into adulthood, shifting focus to preventing complications like brain injury.
Area of Science:
- Neonatal Medicine
- Developmental Pediatrics
- Perinatal Health
Background:
- Survival rates for infants of borderline viability have significantly improved.
- Despite improved survival, preterm infants face substantial short- and long-term morbidities.
- Morbidity is inversely correlated with gestational age, with no gestational age entirely exempt from risk.
Purpose of the Study:
- To highlight the spectrum of complications in preterm infants.
- To emphasize the shift in focus towards reducing long-term morbidity and preventing brain injury.
- To advocate for continued follow-up to identify later-life risks such as cardiovascular and metabolic disorders.
Main Methods:
- Review of existing literature on preterm infant outcomes.
- Analysis of morbidity patterns related to gestational age.
- Longitudinal observation of preterm survivors into adulthood.
Main Results:
- Preterm infants experience neurodevelopmental disabilities and recurrent health problems in childhood.
- Hidden disabilities like learning and behavioral problems emerge in adolescence.
- Most very preterm survivors adjust well during the transition to adulthood.
Conclusions:
- Reduced mortality necessitates a focus on preventing long-term morbidity, particularly brain injury.
- Long-term follow-up is crucial for identifying risks of cardiovascular and metabolic disorders in preterm survivors.
- Strategies for perinatal interventions must evolve to address the comprehensive health needs of preterm infants throughout their lives.
Abstract:
Survival rates have greatly improved in recent years for infants of borderline viability; however, these infants remain at risk of developing a wide array of complications, not only in the neonatal unit, but also in the long term. Morbidity is inversely related to gestational age; however, there is no gestational age, including term, that is wholly exempt. Neurodevelopmental disabilities and recurrent health problems take a toll in early childhood. Subsequently hidden disabilities such as school difficulties and behavioural problems become apparent and persist into adolescence. Reassuringly, however, most children born very preterm adjust remarkably well during their transition into adulthood. Because mortality rates have fallen, the focus for perinatal interventions is to develop strategies to reduce long-term morbidity, especially the prevention of brain injury and abnormal brain development. In addition, follow-up to middle age and beyond is warranted to identify the risks, especially for cardiovascular and metabolic disorders that are likely to be experienced by preterm survivors.
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