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Causes of cerebral palsy
1California Birth Defects Monitoring Program, California Department of Health Services, Emeryville, USA. knelson@helix.nih.gov
Insights
Risk factors for cerebral palsy include prenatal infection and coagulation issues. While birth oxygen interruption plays a role, new prevention strategies may arise from understanding broader causes like in utero infections.
Area of Science:
- Perinatology
- Neonatal Neurology
- Developmental Pediatrics
Background:
- Cerebral palsy (CP) risk factors in term/near-term infants are multifactorial.
- Intrauterine infection/inflammation and coagulation disorders are implicated.
- Oxygen supply interruption during birth accounts for a small percentage of spastic CP.
Purpose of the Study:
- To review current evidence on risk factors for cerebral palsy in term and near-term infants.
- To explore potential protective factors and broader causal pathways.
- To inform the development of novel prevention strategies for cerebral palsy.
Main Methods:
- Literature review of existing studies on cerebral palsy etiology.
- Analysis of risk factors including intrauterine exposures and birth events.
- Evaluation of the role of neonatal indicators and antenatal interventions.
Main Results:
- Intrauterine infection/inflammation is a significant risk factor.
- Disorders of coagulation are associated with increased CP risk.
- Antenatal steroid exposure may offer some protection.
- Low Apgar scores and seizures are nonspecific indicators of neonatal illness.
Conclusions:
- Understanding a wider range of cerebral palsy causes is crucial.
- Prenatal factors, including infection, are key contributors.
- Further research into prevention strategies targeting these risk factors is warranted.
Abstract:
Risk factors for cerebral palsy in term or near-term children include intrauterine exposure to infection or inflammation and disorders of coagulation. Interruption of the oxygen supply during birth contributes approximately 6% of spastic cerebral palsy. Low Apgar score, need for resuscitation, and seizures are nonspecific indicators of neonatal illness that do not identify cause. Although not entirely consistent, current evidence suggests that in utero infection may predispose very preterm and more mature infants to cerebral palsy and that antenatal exposure to steroids may be somewhat protective. Recognition of a broader set of causal possibilities encourages hope for new strategies for the prevention of cerebral palsy.