title: Novel surgical treatment of a transverse-sigmoid sinus aneurysm presenting as pulsatile tinnitus: technical case report.
abstract: OBJECTIVE
  Pulsatile tinnitus is a relatively common, potentially incapacitating condition that is often vascular in origin. We present a case of disabling pulsatile tinnitus caused by a transverse-sigmoid sinus aneurysm that was surgically treated with self-tying U-clips (Medtronic, Inc., Memphis, TN). We also review the literature and discuss other described interventions.
  
  
  METHODS
  A 48-year-old woman presented with a 5-year history of progressive pulsatile tinnitus involving the right ear. Her physical examination was consistent with a lesion that was venous in origin. Angiography demonstrated a wide-necked venous aneurysm of the transverse-sigmoid sinus that had eroded the mastoid bone.
  
  
  METHODS
  The patient underwent a retromastoid suboccipital craniectomy to expose the aneurysm and surrounding anatomy. The aneurysm dome was tamponaded and the aneurysm neck was coagulated until the dome had shrunk to a small remnant. The linear defect in the transverse sigmoid junction was then reconstructed with a series of U-clips and covered with Gelfoam hemostatic sponge (Pfizer, Inc., New York, NY). The patient awakened without neurological deficit and with immediate resolution of her tinnitus. A postoperative angiogram demonstrated obliteration of the aneurysm, with minimal stenosis in the region of the repair and good flow through the dominant right transverse-sigmoid junction.
  
  
  CONCLUSIONS
  This technical case report describes a novel definitive surgical treatment of venous sinus aneurysms. This technique does not necessitate long-term anticoagulation, has a low likelihood of reintervention, and provides immediate resolution of pulsatile tinnitus.
authors.affiliation: Department of Neurosurgery, Mount Sinai School of Medicine, New York, New York, USA. yakov.gologorsky@mssm.edu
authors.forename: Yakov
authors.initials: Y
authors.lastname: Gologorsky
authors.forename: Scott A
authors.initials: SA
authors.lastname: Meyer
authors.forename: Alexander F
authors.initials: AF
authors.lastname: Post
authors.forename: H Richard
authors.initials: HR
authors.lastname: Winn
authors.forename: Aman B
authors.initials: AB
authors.lastname: Patel
authors.forename: Joshua B
authors.initials: JB
authors.lastname: Bederson
mesh_terms: D003392:Cranial Sinuses / Q000473:pathology* / Q000601:surgery*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications* / Q000517:prevention & control*; D008875:Middle Aged; D013525:Surgical Instruments; D014012:Tinnitus / Q000209:etiology* / Q000517:prevention & control*; D016896:Treatment Outcome; D014656:Vascular Surgical Procedures / Q000295:instrumentation* / Q000379:methods