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Infection, inflammation and the risk of cerebral palsy
1Neuroepidemiology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA. knelson@helix.nih.gov
Insights
Intrauterine infection and inflammation increase cerebral palsy risk, especially in term infants. Mechanisms differ between preterm and term babies, with term infants facing delivery room depression and neonatal encephalopathy.
Area of Science:
- Obstetrics and Gynecology
- Neonatal Medicine
- Pediatric Neurology
Background:
- Intrauterine infection and inflammation are implicated in the etiology of cerebral palsy.
- The precise mechanisms linking prenatal factors to cerebral palsy remain incompletely understood.
- Potential differences in pathogenesis exist between very immature (preterm) and term infants.
Purpose of the Study:
- To elucidate the role of intrauterine infection and inflammation in cerebral palsy development.
- To explore potential mechanistic variations in preterm versus term infants.
- To understand the predisposition of term infants to adverse outcomes following maternal infection.
Main Methods:
- Review and synthesis of current epidemiological and mechanistic evidence.
- Comparative analysis of findings in preterm and term infant populations.
- Examination of neonatal outcomes in relation to intrauterine exposures.
Main Results:
- Evidence supports a contributory role of intrauterine infection/inflammation in cerebral palsy risk.
- Mechanisms may differ based on gestational maturity.
- Term infants exposed to maternal infection show increased susceptibility to delivery room depression and neonatal encephalopathy.
Conclusions:
- Intrauterine infection and inflammation are significant risk factors for cerebral palsy.
- Gestational age influences the pathways through which these exposures impact neurological outcomes.
- Targeted interventions during pregnancy may mitigate risks for neonatal encephalopathy and cerebral palsy.
Abstract:
The balance of current evidence indicates that intrauterine exposure to infection and inflammation contributes to the risk of cerebral palsy. The mechanisms involved are not well understood and may differ in very immature versus term infants. Term infants exposed to maternal infection are predisposed to delivery room depression and neonatal encephalopathy.