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Origins of cerebral palsy
R L Naeye1, E C Peters, M Bartholomew
1Department of Pathology, M. S. Hershey Medical Center, Pennsylvania State University College of Medicine, Hershey 17033.
Insights
Congenital disorders are the leading cause of cerebral palsy (CP) in full-term infants, with birth asphyxia also a significant factor. Understanding these causes aids in prevention and management strategies for CP.
Area of Science:
- Neurology
- Pediatrics
- Genetics
Background:
- Cerebral palsy (CP) is a group of movement disorders associated with abnormal brain development.
- Identifying the etiological factors of CP is crucial for targeted prevention and intervention strategies.
Purpose of the Study:
- To investigate the causes of cerebral palsy in a large cohort of full-term infants.
- To quantify the contribution of congenital disorders and birth asphyxia to CP development.
Main Methods:
- Prospective study involving 43,437 full-term children.
- Risk estimation using predictive models adjusted for multiple factors.
- Analysis of presumed causes for quadriplegic and nonquadriplegic CP cases.
Main Results:
- Presumed causes identified in 71% of quadriplegic and 40% of nonquadriplegic CP cases.
- Congenital disorders accounted for 53% of quadriplegic CP and 35% of nonquadriplegic CP.
- Birth asphyxia contributed to 14% of quadriplegic CP; other disorders accounted for 8% and 6% respectively.
- Consequences of birth asphyxia were often linked to nonasphyxial disorders.
Conclusions:
- Congenital disorders are the primary identified cause of cerebral palsy in full-term infants.
- Birth asphyxia remains a significant, though often secondary, contributor to CP.
- Nonasphyxial factors play a role in the presentation of CP symptoms.
Abstract:
Analyses were undertaken to determine the causes of cerebral palsy in a prospective study of 43,437 full-term children. Presumed causes were found for about 71% of the 34 quadriplegic and 40% of the 116 nonquadriplegic patients with cerebral palsy. Risk estimates based on predictive models, adjusted for multiple factors, suggest that 53% of the quadriplegic patients with cerebral palsy could be attributed to congenital disorders, 14% to birth asphyxia, and 8% to other identified disorders. Thirty-five percent of the nonquadriplegic patients with cerebral palsy could be attributed to congenital disorders and 6% to other disorders. In the victims of cerebral palsy, characteristic consequences of birth asphyxia were more often the result of nonasphyxial disorders. These included meconium in the amniotic fluid, low 10-minute Apgar scores, neonatal apnea spells, seizures, persisting neurologic abnormalities, and slow head growth after birth.