Abstract
While the survival rate of preterm infants has increased dramatically over the last few decades, intraventricular hemorrhage and subsequent hydrocephalus remain major unsolved problems in neonatal intensive care. Once intraventricular hemorrhage occurs, severe neurological sequelae are inevitable. Treatment of this complicated pathology and achievement of favorable neurofunctional outcomes in fragile infants are crucial challenges for pediatric neurosurgeons. Fibrinolytic therapy, which chemically dissolves hematoma, is a promising and useful treatment method. In this paper, the historical background of fibrinolytic therapy for postintraventricular hemorrhagic hydrocephalus in preterm infants is reviewed and a recent method of fibrinolytic therapy using urokinase is introduced.