Table 1 Modified Dandy criteria for IIH used in the IIHTT (reproduced from Wall 2017 [24]).
1 | Signs and symptoms of increased ICP |
|---|---|
2 | Absence of localizing findings on neurologic examination |
3 | Absence of deformity, displacement, or obstruction of the ventricular system and otherwise normal neurodiagnostic studies, except for increased cerebrospinal fluid pressure (> 200 mm H2O). Abnormal neuroimaging except for empty sella turcica, optic nerve sheath with filled out CSF space, and smooth-walled non flow-related venous sinus stenosis or collapse should lead to another diagnosis |
4 | Awake and alert |
5 | No other cause of increased ICP present |