title: Straight sinus thrombosis during neurosurgical operation.
abstract: BACKGROUND
  Perioperative straight sinus thrombosis is extremely rare.
  
  
  METHODS
  A 59-year-old female was admitted to our department because of incidentally found small anterior cerebral artery (A1) aneurysm with microbleeding. After clipping the cerebral aneurysm, she had delayed emergence from anesthesia, total aphasia, and right hemiparesis. Fluid-attenuated inversion recovery (FLAIR) magnetic resonance imaging (MRI) of the head showed hyperintensity in the bilateral caudate nuclei, putamina, and thalami, and computed tomography of the head showed a hyperdense straight sinus, suggesting straight sinus thrombosis. Her neurologic symptoms improved gradually, and she achieved a full clinical recovery, with radiological evidence of recanalization of the straight sinus at follow-up.
  
  
  CONCLUSIONS
  The possibility of straight sinus thrombosis should be considered in postoperative patients with unexplained postoperative deficits when MRI demonstrates hyperintensity in the bilateral basal ganglia and thalami on FLAIR signal images.
authors.affiliation: Department of Neurosurgery, Shiga University of Medical Science, Otsu, Shiga, Japan.
authors.forename: Hiroto
authors.initials: H
authors.lastname: Kawano
authors.affiliation: Department of Neurosurgery, Shiga University of Medical Science, Otsu, Shiga, Japan.
authors.forename: Naoki
authors.initials: N
authors.lastname: Nitta
authors.affiliation: Department of Neurosurgery, Shiga University of Medical Science, Otsu, Shiga, Japan.
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Nozaki
keywords: Basal ganglia; bilateral; postoperative; straight sinus thrombosis; thalamus