The idiopathic intracranial hypertension prospective cohort study: evaluation of prognostic factors and outcomes.

Background: There are limited longitudinal data evaluating outcomes in idiopathic intracranial hypertension (IIH). We aimed to evaluate the long-term outcomes in a real-world cohort of patients with IIH and sought to establish the prognostic factors.

Methods: A longitudinal prospective cohort study was conducted over 9 years (2012-2021).

Differing presenting features of idiopathic intracranial hypertension in the UK and US.

Aim: Demographic factors potentially influencing the presentation and severity of idiopathic intracranial hypertension (IIH) in the US vs. UK populations include obesity and ethnicity. We aimed to compare the presenting features of IIH between populations in the UK and US tertiary referral centres, to assess what population differences exist and whether these cause different presentations and impact on visual function.