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Obstruction of cerebral venous sinus secondary to idiopathic intracranial hypertension


Martin Häusler, Department of Pediatrics, University Hospital RWTH Aachen, Pauwelsstr. 30, 52074 Aachen, Germany (tel.: ++49 241 800; fax: ++49 241 8082484; e-mail:


Background:  Whether cerebral venous sinus obstruction is a cause or consequence of idiopathic intracranial hypertension (IIH) is uncertain.

Methods and results:  Among the nine children with IIH, five showed stenosis (n = 5) and occlusion (n = 1) of cerebral venous sinus on cranial magnetic resonance imaging (n = 4) or conventional angiography (n = 1), respectively. Follow-up magnetic resonance imaging performed in four children showed complete regression of the venous pathology in one and partial regression in two of them.

Conclusions:  Our data demonstrate that cerebral venous sinus obstruction is frequent and frequently transient in pediatric IIH and suggest that stenoses may result from elevated intracranial pressure.