The late premature, what do we know from the perinatal point of view?

Abstract

Preterm delivery is the most important cause of neonatal morbidity and mortality in Chile. Late preterm, defined as deliveries between 34 +0 and 36+6-weeks accounts for 70-80% of preterm and is associated with non-severe morbidity and extremely low mortality when compared with deliveries below 34 weeks but significantly high when compared with full term babies. Late preterm deliveries are a result of several obstetric conditions, such a hypertensive disorder, premature rupture of membranes, intrahepatic cholestasis, and maternal medical comorbidities.The purpose of this review is to update the information associated with the risk's of late preterm and to guide in the new trends in the application of steroid and expectant management for premature rupture of membranes in order to reduce the frequency of late preterm.