Grade 3 Neonatal Intraventricular Hemorrhage, AE

**Semantic type:** Finding

**Definition:** An adverse event in a newborn characterized by hemorrhage occupying greater than 50% of the ventricle volume; ventricular dilatation greater than 4mm above the 97th percentile; parenchymal venous infarction; requiring temporizing neurosurgical procedure (drain, shunt or reservoir).

**Synonyms:** - Grade 3 Intraventricular Hemorrhage neonatal - Grade 3 Neonatal Intraventricular Hemorrhage, Adverse Event