title: Chronic Spinal Subdural Hematoma Associated with Antiplatelet Therapy.
abstract: BACKGROUND
  Spinal subdural hematoma is a rare clinical entity marked by the onset of pain and paralysis, which is usually associated with hemorrhagic disorders, trauma, and iatrogenic causes such as lumbar puncture or epidural anesthesia.
  
  
  METHODS
  A 71-year-old man was admitted to our hospital with 2 weeks' history of bilateral lower leg pain, dysesthesia, paraparesis, and urinary disturbance. Magnetic resonance imaging showed characteristic findings at the thoracolumbar spine, and surgical evacuation successfully treated this condition. The postoperative course was uneventful. The patient gradually recovered from paraparesis and was discharged 4 weeks after operation.
  
  
  CONCLUSIONS
  We report an extremely rare case of chronic spinal subdural hematoma associated with antiplatelet therapy. Spinal subdural hematoma should be considered as the differential diagnosis of gait disturbance in patients undergoing antiplatelet therapy. Early diagnosis and identification of the extent of the hematoma are necessary for successful treatment.
authors.affiliation: Department of Neurosurgery, Sapporo Medical University, Sapporo, Japan. Electronic address: akiyuki@sapmed.ac.jp.
authors.forename: Yukinori
authors.initials: Y
authors.lastname: Akiyama
authors.affiliation: Department of Neurosurgery, Sapporo Medical University, Sapporo, Japan.
authors.forename: Izumi
authors.initials: I
authors.lastname: Koyanagi
authors.affiliation: Department of Neurosurgery, Sapporo Medical University, Sapporo, Japan.
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Mikuni
mesh_terms: D000368:Aged; D002908:Chronic Disease; D046649:Hematoma, Subdural, Spinal / Q000000981:diagnostic imaging / Q000188:drug therapy* / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010975:Platelet Aggregation Inhibitors / Q000627:therapeutic use*
chemical_list: D010975:Platelet Aggregation Inhibitors
keywords: Antiplatelet therapy; Chronic spinal subdural hematoma; Magnetic resonance imaging