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Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
Impact of hospital-based environmental exposures on neurodevelopmental outcomes of preterm infants
Janelle Santos1, Sarah E Pearce, Annemarie Stroustrup
1aIcahn School of Medicine at Mount Sinai bDepartment of Pediatrics, Division of Newborn Medicine cDepartment of Preventive Medicine, Ichan School of Medicine at Mount Sinai, New York, New York, USA.
Insights
Neonatal intensive care unit (NICU) environments expose preterm infants to factors impacting neurodevelopment. Understanding these exposures is crucial for improving long-term neurobehavioral health in this vulnerable population.
Area of Science:
- Environmental Health
- Neurodevelopmental Pediatrics
- Neonatal Intensive Care
Background:
- Over 300,000 infants annually require neonatal intensive care unit (NICU) hospitalization in the U.S.
- The NICU stay occurs during a critical developmental window for neurobehavioral function.
- Environmental exposures in early life significantly influence long-term neurobehavioral outcomes.
Purpose of the Study:
- To review existing evidence on NICU environmental exposures and their impact on preterm infants' neurodevelopment.
- To highlight the critical role of the NICU environment in shaping neurobehavioral outcomes.
Main Methods:
- This is a review article, synthesizing findings from existing research.
- Evidence linking specific NICU exposures to neurodevelopmental outcomes was examined.
Main Results:
- Preterm infants in the NICU face multiple environmental exposures affecting neurodevelopment.
- Key exposures include NICU physical layout, light and sound management, social interactions, and chemical exposures.
- These factors are critical for long-term neurobehavioral outcomes in vulnerable preterm infants.
Conclusions:
- NICU environments present a combination of excessive stimuli (chemicals, light, sound) and sensory deprivation (touch, speech).
- The cumulative impact of these co-exposures on preterm infant neurodevelopment requires further elucidation.
- Research on the NICU as an environmental health factor is emerging and vital for identifying modifiable factors influencing neurobehavioral health.
Purpose Of Review:
Over 300,000 infants are hospitalized in a neonatal intensive care unit (NICU) in the United States annually during a developmental period critical to later neurobehavioral function. Environmental exposures during the fetal period and infancy have been shown to impact long-term neurobehavioral outcomes. This review summarizes evidence linking NICU-based environmental exposures to neurodevelopmental outcomes of children born preterm.
Recent Findings:
Preterm infants experience multiple exposures important to neurodevelopment during the NICU hospitalization. The physical layout of the NICU, management of light and sound, social interactions with parents and NICU staff, and chemical exposures via medical equipment are important to long-term neurobehavioral outcomes in this highly vulnerable population.
Summary:
Existing research documents NICU-based exposure to neurotoxic chemicals, aberrant light, excess sound, and restricted social interaction. In total, this creates an environment of co-existing excesses (chemicals, light, sound) and deprivation (touch, speech). The full impact of these co-exposures on the long-term neurodevelopment of preterm infants has not been adequately elucidated. Research into the importance of the NICU from an environmental health perspective is in its infancy, but could provide understanding about critical modifiable factors impacting the neurobehavioral health of hundreds of thousands of children each year.
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