Preterm premature rupture of membranes (PPROM): outcomes of delivery at 32(°/7)-33(6/7) weeks after confirmed fetal lung maturity (FLM) versus expectant management until 34(°/7) weeks.

Objective: Our objective was to compare maternal and neonatal outcomes in patients with preterm premature rupture of membranes (PPROM) delivered prior to 34(°/7) weeks upon confirmation of fetal lung maturity (FLM) to those managed expectantly until 34(°/7) weeks.

Methods: We performed a retrospective cohort study of non-anomalous singleton gestations with PPROM occurring after 24 weeks delivered between 32(°/7) and 34(°/7) weeks from 2004 to 2012. Patients delivered upon documented FLM (+FLM)--defined as the presence of phosphatidylglycerol (PG) at 32(°/7)-33(6/7) weeks if amniotic fluid was obtainable vaginally--were compared with patients delivered without documented FLM between 32(°/7) and 34(°/7) weeks (expectant).