Cerebrospinal Fluid Removal for Idiopathic Intracranial Hypertension: Less Cerebrospinal Fluid Is Best

Abstract

Low-volume CSF removal to approximately 18 cm H2O resulted in relief of IIH-associated headache in most patients and a low incidence of post-LP headache. Although clinically variable, these data suggest that for every 1 mL of CSF removed, the CP decreases approximately 1.5 cm H2O.