Idiopathic intracranial hypertension (IIH) is a syndrome of raised intracranial pressure without hydrocephalus or mass lesion and normal cerebrospinal fluid (CSF) constituents. Incidence and prevalence of IIH are rising, and this is anticipated to have a significant economic impact on healthcare systems. We reviewed the Lewisham and Greenwich NHS Trust experience of IIH over the past 6 years. We sought to characterise a cohort of patients and explore the admissions rate, assess the influence of medical and psychiatric comorbidities and determine the health economic impact of IIH.
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