Related Experiment Videos
Cerebral palsy births in eastern Denmark, 1987--90: implications for neonatal care
1The Cerebral Palsy Registry in Denmark, National Institute of Public Health, Copenhagen, Denmark. monica.topp@dadlnet.dk
Insights
Cerebral palsy rates decreased in preterm infants due to changes in neonatal intensive care, specifically reduced mechanical ventilation use. This shift may explain the observed decline in cerebral palsy prevalence.
Area of Science:
- Pediatrics
- Neurology
- Public Health
Background:
- Cerebral palsy (CP) is a leading cause of childhood disability.
- Understanding trends and risk factors is crucial for prevention strategies.
- The Cerebral Palsy Register in eastern Denmark provides longitudinal data.
Purpose of the Study:
- To investigate changes in cerebral palsy rates between 1983-1990.
- To analyze the relationship between gestational age, mortality, and perinatal factors.
- To identify potential causes for observed trends in CP prevalence.
Main Methods:
- Analysis of data from the Cerebral Palsy Register in eastern Denmark.
- Comparison of CP birth prevalence, mortality, and treatment modalities across birth year periods (1983-1986 vs. 1987-1990).
- Focus on preterm and term infants, and specific neonatal interventions like mechanical ventilation and CPAP.
Main Results:
- Total cerebral palsy birth prevalence decreased from 3.0 to 2.4 per 1000 live births (P < 0.01).
- The decline was primarily driven by a significant decrease in preterm infants (P < 0.001).
- Reduced use of mechanical ventilation and increased use of CPAP in neonatal intensive care units correlated with the CP rate decline.
Conclusions:
- A significant decline in cerebral palsy rates among preterm infants was observed.
- Changes in neonatal intensive care practices, particularly reduced mechanical ventilation, may be a contributing factor.
- Further research is needed to confirm the causal link between altered neonatal interventions and reduced cerebral palsy rates.
Abstract:
The Cerebral Palsy Register in eastern Denmark has collected cases using a uniform data sampling procedure since birth year 1979. We have investigated changes in the rate of cerebral palsy, related to gestational age, mortality and perinatal risk factors in children born 1983--90. The total cerebral palsy birth prevalence decreased from 3.0 in the birth year period 1983--86 to 2.4 per 1000 live births (P < 0.01) in 1987--90, owing to a decrease among all preterm infants (29--19 per 1000, P < 0.001). The perinatal and early neonatal mortality in preterm infants was unchanged from 1983--86 to 1987--90. The rate of cerebral palsy in term infants was 1.5 per 1000 in all birth-year periods from 1979--90. Among the cerebral palsy infants, the proportion of very preterm babies treated with mechanical ventilation in the neonatal period decreased from 95% in 1983--86 to 61% in 1987--90 (P < 0.001), while the group treated with CPAP among the moderately preterm babies increased from 61% to 78% (P < 0.05). The significant decline in cerebral palsy rate in preterm infants born 1987--90 may be due to a change in treatment at the neonatal intensive care units using less mechanical ventilation, a hypothesis which needs further investigation.