title: Long term outcome of transcranial bypass.
abstract: OBJECTIVE
  This study examines the long term outcome of transcranial bypass in a single centre.
  
  
  METHODS
  In a prospective study, symptoms and angiographic findings were recoded on a database for 229 consecutive transcranial bypass procedures performed in 204 patients between 1976 and 1983. One hundred and seventy-seven had carotid territory symptoms, and the predominant angiogram finding was internal carotid artery (ICA) occlusion.
  
  
  RESULTS
  At 5 years 87% (86 patients) were free from stroke. At 20 years 83% (29 patients) were stroke free but by this time the majority had died from other cardiovascular causes and 35 were lost to follow up.
  
  
  CONCLUSIONS
  Stroke is uncommon five or more years after transcranial bypass but overall survival is poor.
authors.affiliation: Professorial Surgical Unit, St Bartholomew's Hospital, London EC1A 7BE, UK. paul.srodon@bartsandthelondon.nhs.uk
authors.forename: P D
authors.initials: PD
authors.lastname: Srodon
authors.forename: J S P
authors.initials: JS
authors.lastname: Lumley
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000714:Anastomosis, Surgical; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging; D016893:Carotid Stenosis / Q000000981:diagnostic imaging / Q000601:surgery*; D002533:Cerebral Angiography; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D020768:Middle Cerebral Artery / Q000000981:diagnostic imaging / Q000601:surgery*; D011446:Prospective Studies; D020521:Stroke / Q000000981:diagnostic imaging / Q000453:epidemiology*; D016019:Survival Analysis; D013699:Temporal Arteries / Q000000981:diagnostic imaging / Q000601:surgery*; D016896:Treatment Outcome