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Spontaneous preterm labour and delivery at under 34 weeks' gestation
British Medical Journal (Clinical Research Ed.)
|February 5, 1983
Summary
For preterm infants born between 26-34 weeks gestation, in-utero transfer to neonatal intensive care units is crucial. Steroid use benefits preterm infants most between 30-32 weeks, and C-sections improve survival for breech infants under 1500g.
Area of Science:
- Perinatology
- Neonatology
- Obstetrics
Background:
- Spontaneous preterm labor presents significant challenges for infant survival and management.
- Optimal care for preterm infants requires specialized neonatal intensive care facilities.
Purpose of the Study:
- To evaluate the management and outcomes of 242 infants born between 26 and 34 weeks' gestation.
- To identify factors influencing the management and survival of preterm infants.
Main Methods:
- Prospective recording of management and outcomes for 242 infants born prematurely.
- Analysis of delivery mode, gestational age, birth weight, and interventions.
Main Results:
- Decision to delay delivery depends on neonatal intensive care unit (NICU) availability; in-utero transfer is recommended for high-risk infants.
- Antenatal steroid administration demonstrated reduced mortality, with maximal benefit observed between 30-32 weeks' gestation.
- For breech presentation in preterm infants >1500g, delivery mode did not impact outcome; for those <1500g, cesarean section improved survival compared to vaginal breech delivery.
Conclusions:
- Availability of neonatal intensive care facilities dictates intervention strategies for preterm labor.
- Antenatal corticosteroids are vital for reducing preterm infant mortality, particularly within a specific gestational window.
- Mode of delivery significantly impacts survival for low-birth-weight breech preterm infants, favoring cesarean section.