title: Outcomes of 24 patients with subarachnoid hemorrhage aged 80 years or older in a single center.
abstract: OBJECTIVE
  In the developed countries, elderly population is rapidly increasing, but outcomes of elderly patients with subarachnoid hemorrhage (SAH) remain unclear.
  
  
  METHODS
  We retrospectively reviewed the medical records of non-traumatic SAH patients aged 80 years or older, who were hospitalized in a single center between 2000 and 2005.
  
  
  RESULTS
  There were 24 patients (80-92 years old and 83% female), representing 8.8% of all non-traumatic SAHs (n=272). Of those, six patients received an intervention (five clipping and one endovascular coiling) and the remaining 18 patients were managed conservatively. The patients who received an intervention were younger and had a better consciousness at presentation. Early mortality rate within 30 days after SAH was higher in the conservative group (61% [11/18] and 17% [1/6], p=0.155). At 6 months, mortality rate was significantly higher in the conservative group (83% [15/18] and 33% [2/6], p=0.038), and independence rate was higher in the intervention group (33% [2/6] and 0% [0/18], p=0.054). Logistic regression analysis showed that age and degree of consciousness on admission were significant predictor of outcome in 4 weeks, and that receiving intervention was significant predictor of outcome in 6 months.
  
  
  CONCLUSIONS
  In elderly SAH patients with good clinical condition at presentation, an active intervention may improve the outcome.
authors.affiliation: Department of Neurosurgery, International Medical Center of Japan, Tokyo, Japan. sasano-tky@umin.ac.jp
authors.forename: Shuichiro
authors.initials: S
authors.lastname: Asano
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Hara
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Haisa
authors.forename: Koichiro
authors.initials: K
authors.lastname: Okamoto
authors.forename: Takahiro
authors.initials: T
authors.lastname: Kato
authors.forename: Hiroyasu
authors.initials: H
authors.lastname: Ohno
authors.forename: Kanehiro
authors.initials: K
authors.lastname: Hasuo
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Kondo
mesh_terms: D000203:Activities of Daily Living / Q000145:classification; D000367:Age Factors; D000369:Aged, 80 and over; D002423:Cause of Death; D004621:Embolization, Therapeutic; D005260:Female; D005500:Follow-Up Studies; D015577:Geriatric Assessment; D015600:Glasgow Coma Scale; D006801:Humans; D002532:Intracranial Aneurysm / Q000401:mortality / Q000601:surgery; D008297:Male; D011183:Postoperative Complications / Q000401:mortality*; D012189:Retrospective Studies; D013345:Subarachnoid Hemorrhage / Q000401:mortality / Q000601:surgery*; D013525:Surgical Instruments; D016019:Survival Analysis; D014041:Tokyo