[Application of sustained lung inflation in preterm infants with a gestational age of <34 weeks: a Meta analysis].

Objective: To systematically review the effect of sustained lung inflation (SLI) in preterm infants with a gestational age of <34 weeks.

Methods: PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure, Wanfang Database, China Biology Medicine disc, Chinese Journal Full-text Database, and Weipu Database were searched for randomized controlled trials (RCTs) on the application of SLI versus noninvasive positive pressure ventilation alone in preterm infants. Revman 5.