Germinal matrix–intraventricular hemorrhage (GMH-IVH) is a common and characteristic form of intracranial hemorrhage occurring in the premature infant. The hemorrhage originates in small blood vessels in the subependymal germinal matrix (also termed the ganglionic eminence) and may disrupt the ependymal lining and extend into the lateral ventricle. Severe IVH consists of large amounts of intrav...