title: Contralateral Hypoplastic Venous Draining Sinuses Are Associated with Elevated Intracranial Pressure in Unilateral Cerebral Sinovenous Thrombosis.
abstract: Variations in cerebral venous development can influence the ability to regulate drainage. In cerebral sinovenous thrombosis, these variations can be associated with elevated intracranial pressure. We present a series of pediatric patients with unilateral cerebral sinovenous thrombosis and investigate whether the contralateral venous sinus size increases the risk of developing elevated intracranial pressure. Patients diagnosed with a unilateral cerebral sinovenous thrombosis were identified by querying our institutional radiology data base. The difference in the occurrence of elevated intracranial pressure in patients with cerebral sinovenous thrombosis with and without hypoplastic venous sinuses was studied. Twelve cases of unilateral cerebral sinovenous thrombosis met the inclusion criteria and had sufficient images. Six patients had hypoplastic contralateral venous sinuses. The presence of hypoplastic contralateral venous sinus in the setting of thrombosis of a dominant sinus was associated with elevation of intracranial pressure (83% versus 0%, P = .015). Patients with cerebral sinovenous thrombosis and contralateral hypoplastic venous sinuses are at higher risk of developing elevated ICP and may benefit from screening with an ophthalmologic examination.
authors.affiliation: From the Divisions of Child Neurology (R.F.-M., R.A., J.C.).
authors.forename: R
authors.identifier: 0000-0001-8717-7703
authors.initials: R
authors.lastname: Farias-Moeller
authors.affiliation: From the Divisions of Child Neurology (R.F.-M., R.A., J.C.).|Ophthalmology (R.A.).
authors.forename: R
authors.identifier: 0000-0003-1453-7282
authors.initials: R
authors.lastname: Avery
authors.affiliation: Pediatric Hematology (Y.D.).
authors.forename: Y
authors.identifier: 0000-0002-6555-1511
authors.initials: Y
authors.lastname: Diab
authors.affiliation: From the Divisions of Child Neurology (R.F.-M., R.A., J.C.).
authors.forename: J
authors.identifier: 0000-0003-3426-4779
authors.initials: J
authors.lastname: Carpenter
authors.affiliation: Diagnostic Imaging and Radiology (J.M.), Children's National Health System, Washington, DC. jmurnick@cnmc.org.
authors.forename: J
authors.identifier: 0000-0003-0582-428X
authors.initials: J
authors.lastname: Murnick
mesh_terms: D003392:Cranial Sinuses / Q000002:abnormalities*; D005260:Female; D006801:Humans; D019586:Intracranial Hypertension / Q000209:etiology*; D008297:Male; D012851:Sinus Thrombosis, Intracranial / Q000150:complications* / Q000175:diagnosis