Changes in perinatal management and outcomes of extremely preterm infants born below 26 weeks of gestation in a tertiary referral hospital in Sweden: Comparison between 2004-2007 and 2012-2016.

Both obstetric and neonatal interventions at births below 26 gestational weeks increased between 2004-2007 and 2012-2016 in this single center study; however, at 22 gestational weeks they were still at a low level during 2012-2016. Despite more infants being born alive, 1-year survival did not increase between the study periods.