Relationship between NLR (Neutrophil/Lymphocyte ratio) value and clinical outcome in patients with external ventricular drainage due to intraventricular hemorrhage.

Background: Intraventricular hemorrhages (IVH) are common pathologies in neurosurgery practice and are associated with the worst clinical outcome among all intracranial hemorrhages. Blood in the ventricles is thought to worsen the clinical condition by triggering inflammatory processes. In recent years, NLR value is a frequently used inflammatory parameter, and there are many publications reporting that a high NLR value is an important marker in predicting the severity of inflammation.