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Summary
Perinatal asphyxia at term is a significant cause of infant mortality. This study found that infants experiencing unexpected asphyxia, especially those with neurological symptoms or death, were often born closer to or past their due date.
Area of Science:
- Perinatal Medicine
- Neonatology
- Obstetrics
Background:
- Perinatal asphyxia is a leading cause of neonatal mortality and morbidity.
- While often linked to obstetric or maternal complications, some cases occur without identifiable risk factors.
Purpose of the Study:
- To evaluate the incidence and characteristics of perinatal asphyxia in term infants.
- To identify potential risk factors and gestational age associations in asphyxiated neonates.
Main Methods:
- Retrospective analysis of 1602 infant histories.
- Categorization of infants based on complicating factors (none, obstetric, miscellaneous).
- Comparison of gestational ages and outcomes among different groups.
Main Results:
- Gestational age was longer in infants experiencing unexpected intrapartum asphyxia (mean 288.8 days) and those with adverse outcomes (mean 291 days).
- Only a small percentage of infants with unexpected asphyxia or neurological symptoms were born preterm.
- A majority of infants with complications or no morbidity were born before 280 days gestation.
Conclusions:
- Gestational age, particularly post-term birth, may be a critical factor in unexpected perinatal asphyxia.
- Findings suggest implications for the management of pregnancies at or beyond 280 days gestation.