The complex aetiology of cerebral palsy

Area of Science:

• Neurology
• Public Health
• Developmental Pediatrics

Background:

• Cerebral palsy (CP) is the leading cause of severe childhood motor disability, posing significant public health challenges.
• The complex etiology of CP necessitates a comprehensive understanding of its contributing factors for effective prevention strategies.
• Recent trends indicate a potential decline in CP birth prevalence in certain high-income countries.

Purpose of the Study:

• To review the current evidence on the epidemiology and risk factors associated with cerebral palsy.
• To discuss advancements in CP prevention, including pharmacological and therapeutic interventions.
• To explore the challenges in differentiating prenatal and perinatal influences and establishing CP subtypes to guide future prevention efforts.

Main Methods:

• Systematic review of epidemiological studies on cerebral palsy risk factors.
• Analysis of data on the effectiveness of magnesium sulfate and therapeutic hypothermia in CP prevention.
• Discussion of genetic, infectious, and environmental exposures implicated in CP etiology.

Main Results:

• Evidence suggests a decreasing birth prevalence of CP in some high-income nations.
• Key risk factors identified include preterm delivery, fetal growth restriction, genetics, and pregnancy infections.
• Magnesium sulfate for preterm labor and therapeutic hypothermia for hypoxic-ischemic encephalopathy show promise in CP prevention.

Conclusions:

• CP prevention strategies have shown success, particularly with interventions targeting preterm birth and birth asphyxia.
• Further research is needed to disentangle prenatal and perinatal factors and to classify CP subtypes for targeted prevention.
• Accelerating the translation of evidence into clinical practice is crucial for reducing the burden of cerebral palsy.