title: Delirium in vascular surgery.
abstract: Delirium is common in many surgical settings. Patients undergoing elective vascular surgery may be at particular risk of developing delirium, and may have modifiable aetiological factors that can be addressed by pre-operative interventions. We decided to review the literature regarding the incidence and aetiology of delirium in elective vascular surgical patients.
  
  
  METHODS
  We searched medical databases, journals and bibliographies to identify relevant studies. We used predetermined quality criteria for appraisal of the quality of incidence and aetiological studies.
  
  
  RESULTS
  Four studies were identified as relevant to the review. The incidence of delirium ranged from 29.1% to 39.2%. The significant aetiological factors identified were age, pre-operative cognitive impairment, depressive symptoms, inter-operative blood transfusion and previous amputation.
  
  
  CONCLUSIONS
  Delirium is common in people undergoing elective vascular surgery. Further research is required to examine the effect on outcome of delirium, and the effect of psychiatric and geriatric medicine interventions in this setting.
authors.affiliation: Leeds Mental Health Trust, Leeds UK. bartibalasundaram@hotmail.com
authors.forename: B
authors.initials: B
authors.lastname: Balasundaram
authors.forename: J
authors.initials: J
authors.lastname: Holmes
mesh_terms: D000367:Age Factors; D000671:Amputation, Surgical / Q000009:adverse effects; D003072:Cognition Disorders / Q000150:complications; D003693:Delirium / Q000453:epidemiology / Q000209:etiology* / Q000523:psychology; D003863:Depression / Q000150:complications; D017558:Elective Surgical Procedures / Q000009:adverse effects; D006801:Humans; D015994:Incidence; D018570:Risk Assessment; D012307:Risk Factors; D065227:Transfusion Reaction; D014656:Vascular Surgical Procedures / Q000009:adverse effects*