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Published on: January 20, 2019
Developmental cerebellar cognitive affective syndrome in ex-preterm survivors following cerebellar injury
Marie Brossard-Racine1, Adre J du Plessis, Catherine Limperopoulos
1Advanced Pediatric Brain Imaging Research Laboratory, Children's National Health System, Washington, DC, USA, mbracine@cnmc.org.
Insights
Cerebellar injury in premature infants impacts neurodevelopment beyond motor skills. Early cerebellar growth impairment contributes to long-term cognitive, behavioral, and social deficits.
Area of Science:
- Neuroscience
- Developmental Pediatrics
- Neonatology
Background:
- Cerebellar injury is a recognized complication in very preterm infants.
- Neurodevelopmental outcomes following early cerebellar injury are not fully understood.
- The review focuses on direct and indirect cerebellar injury in preterm infants.
Purpose of the Study:
- To review the neurodevelopmental consequences of early life cerebellar injury in prematurely born infants.
- To explore the relationship between cerebellar injury and cognitive, behavioral, and social deficits.
- To highlight the role of cerebellar growth impairment in long-term outcomes.
Main Methods:
- Literature search of studies published between 1997 and 2014.
- Analysis of studies describing neurodevelopmental outcomes in preterm infants with cerebellar injury.
- Synthesis of data on direct and indirect cerebellar injury mechanisms and effects.
Main Results:
- Both direct and indirect cerebellar injury mechanisms stunt cerebellar growth.
- Early cerebellar injury adversely affects neurodevelopment, extending beyond motor impairments.
- Evidence suggests a developmental form of the cerebellar cognitive affective syndrome in preterm infants.
Conclusions:
- Early life cerebellar growth impairment significantly contributes to long-term cognitive, behavioral, and social deficits in premature infants.
- Cerebellar injury plays a critical, underrecognized role in the neurodevelopmental dysfunction associated with preterm birth.
- Further longitudinal studies using advanced neuroimaging are needed to fully understand prematurity-related cerebellar injury's impact.
Abstract:
Cerebellar injury is increasingly recognized as an important complication of very preterm birth. However, the neurodevelopmental consequences of early life cerebellar injury in prematurely born infants have not been well elucidated. We performed a literature search of studies published between 1997 and 2014 describing neurodevelopmental outcomes of preterm infants following direct cerebellar injury or indirect cerebellar injury/underdevelopment. Available data suggests that both direct and indirect mechanisms of cerebellar injury appear to stunt cerebellar growth and adversely affect neurodevelopment. This review also provides important insights into the highly integrated cerebral-cerebellar structural and functional correlates. Finally, this review highlights that early life impairment of cerebellar growth extends far beyond motor impairments and plays a critical, previously underrecognized role in the long-term cognitive, behavioral, and social deficits associated with brain injury among premature infants. These data point to a developmental form of the cerebellar cognitive affective syndrome previously described in adults. Longitudinal prospective studies using serial advanced magnetic resonance imaging techniques are needed to better delineate the full extent of the role of prematurity-related cerebellar injury and topography in the genesis of cognitive, social-behavioral dysfunction.
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