Randomised controlled trial of sustained lung inflation for resuscitation of preterm infants in the delivery room.

Abstract

To compare the effects of sustained lung inflation (SLI) vs. standard resuscitation on physiologic responses of preterm infants during resuscitation. Preterm infants (25-32 weeks gestational age) requiring positive-pressure ventilation or continuous positive airway pressure were randomly assigned to either the SLI group (SLI at 25cmH₂O for 15s) or Non-SLI group (standard resuscitation alone). The heart rate (HR), oxygen saturation (SpO₂), oxygen requirement, and intubation rate in the delivery room were evaluated. Eighty-one infants were enrolled (SLI group, 43; Non-SLI group, 38). The use of SLI effectively reduced the oxygen requirement. The mean fraction of inspired oxygen 10min after birth was 0.28 (95% CI, 0.26-0.30) in the SLI group and 0.47 (95% CI, 0.43-0.52) in the Non-SLI group (p<0.001). During the first 5min, infants in the SLI group trended towards a higher HR and SpO₂ than those in the Non-SLI group. The intubation rate in the delivery room was not different between the two groups; however, among infants ≤28 weeks gestational age, the intubation rate was lower in the SLI than Non-SLI group (5 of 17 [29%] vs. 10 of 16 [63%], respectively; p=0.05). The duration of respiratory support, survival without bronchopulmonary dysplasia, and the occurrence of pneumothorax were not different between the groups. SLI in infants who require respiratory support appears to be effective in facilitating postnatal transition as determined by HR and SpO₂ responses, resulting in less oxygen supplementation. Further studies are needed to confirm the benefits of SLI.