Incidence and factors associated with Early Respiratory Distress in Late Preterm Infants
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Abstract
Objectives: To describe the incidence of respiratory distress in late preterm infants born at Vajira hospital. Our secondary objective is to study cause, maternal and neonatal risk factors of respiratory distress in late preterm infants.
Method: A descriptive retrospective study was conducted. Late preterm infants born at 34 – 36+6 weeks gestation between March 1st, 2014 to September 30th, 2017 were recruited in the study. Data including maternal and infant characteristics, cause of respiratory complications and treatment of respiratory distress, were collected from hospital charts.
Results: Three hundred and fifty-five late preterm infants were enrolled. Of these, 47% were male. There were 92, 96 and 167 infants born at gestational age 34, 35 and 36 weeks, respectively. The incidence of respiratory distress was 50.1%. The most common cause of respiratory distress was transient tachypnea of the newborn (TTN) (15.8%), followed by sepsis (14.6%), pneumonia (12.4%) and other causes (12.4%). The incidence of respiratory distress seemed to varied inversely by gestational age. There were 43 (12.1%), 15 (4.2%), 2 (0.6%), 120 (33.8%) infants that needed mechanical ventilator, CPAP/NIPPV, surfactant and oxygen therapy and surfactant, respectively. Factors those were statistically significant associated with early respiratory distress included teenage pregnancy, female infant, cesarean section and birth asphyxia.
Conclusion: In late preterm infants, respiratory problem is very common, thus close monitoring is recommended. Without indication for termination of pregnancy, prolong gestation is warranted in order to decrease chance of respiratory distress. Moreover, late preterm infants, who were born via normal delivery seem to have lower rate of respiratory distress, thus obstetric procedures, including cesarean delivery should be apply only when indicated.
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References
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