Intraventricular hemorrhage (IVH) and periventricular leukomalacia (PVL) are acquired brain injuries in neonates born before 37 weeks’ gestation. Severe IVH (sIVH), often referred to as IVH with ventricular distension or periventricular hemorrhagic infarction, occurs in 7.7% of very preterm infants (gestational age <32 weeks) and 16.2% of extremely preterm infants (gestational age <28 weeks).
1 Cystic PVL (cPVL), a type of brain injury characterized by necrosis of white matter near the lateral ventricles, occurs in 6.1% of extremely preterm infants.
2 Both sIVH and cPVL, which are collectively recognized as severe brain injury, are detrimental to long-term neurodevelopmental outcomes,
3 and interventions to reduce their risk in preterm neonates are of utmost importance in neonatal medicine.