title: Papilloedema, an unusual complication of mastoidectomy.
abstract: We report a very unusual case of a patient with a previously undiagnosed congenital absence of the left dural venous drainage system and a prominent system on the right. Due to its prominence it was at risk during a cortical mastoidectomy performed as part of an endolymphatic sac decompression procedure. Manipulation of the lateral venous sinus resulted in partial occlusion of the already compromised venous drainage. The result was a rise in intra-cranial pressure and papilloedema, from which the patient recovered. The abnormality was only detected on post-operative imaging.
authors.affiliation: Department of Otolaryngology, Royal Sussex County Hospital, Brighton, UK.
authors.forename: P
authors.initials: P
authors.lastname: Harkness
authors.forename: R
authors.initials: R
authors.lastname: Dossetor
authors.forename: J
authors.initials: J
authors.lastname: Weighill
mesh_terms: D005260:Female; D006801:Humans; D007601:Jugular Veins / Q000002:abnormalities*; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D008416:Mastoid / Q000601:surgery*; D008875:Middle Aged; D010211:Papilledema / Q000000981:diagnostic imaging / Q000209:etiology* / Q000473:pathology; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000209:etiology* / Q000473:pathology; D014057:Tomography, X-Ray Computed