Abstract
Background A diagnosis of idiopathic intracranial hypertension without papilledema (IIHWOP) should be considered in unresponsive chronic daily headache (CDH) patients [1]. A CSF opening pressure (OP) above 200 mm H2O has been detected in chronic migraine patients with conflicting result, ranging from 10% to 86% of patients [1,2]. Moreover, controversies exist regarding the OP cut-off value greater than 200 or 250 mm H2O and the role of transverse sinus stenosis (TSS) [3,4].
Highlights
A diagnosis of idiopathic intracranial hypertension without papilledema (IIHWOP) should be considered in unresponsive chronic daily headache (CDH) patients [1]
In a prospective study, patients with refractory CDH underwent ophthalmologic evaluation and Optical Coherence Tomography to rule out the presence of papilledema; cerebral MR venography (MRV) to detect transverse sinus stenosis (TSS); and a lumbar puncture to measure opening pressure (OP)
Using a Pearson’s correlation coefficient test, no significant correlation between combined conduit score (CCS) and OP was found
Summary
A diagnosis of idiopathic intracranial hypertension without papilledema (IIHWOP) should be considered in unresponsive chronic daily headache (CDH) patients [1]. A CSF opening pressure (OP) above 200 mm H2O has been detected in chronic migraine patients with conflicting result, ranging from 10% to 86% of patients [1,2]. Controversies exist regarding the OP cut-off value greater than 200 or 250 mm H2O and the role of transverse sinus stenosis (TSS) [3,4]. Aim To investigate the frequency of IIHWOP and TSS in adult patients with refractory CDH
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