Short-term efficacy of umbilical cord milking in preterm infants: systematic review and meta-analysis.

Background: To systematically evaluate short-term efficacy of UCM versus other interventions in preterm infants.

Methods: Six engines were searched until February 2020 for randomized controlled trials (RCTs) assessing UCM versus immediate cord clamping (ICC), delayed cord clamping (DCC), or no intervention. Primary outcomes were overall mortality, intraventricular hemorrhage (IVH), and patent ductus arteriosus (PDA); secondary outcomes were need for blood transfusion, mean blood pressure (MBP), serum hemoglobin (Hb), and ferritin levels.