title: Prediction of outcome after abdominal aortic aneurysm rupture.
abstract: BACKGROUND
  Most vascular surgeons practice a selective policy of operative intervention for patients with ruptured abdominal aortic aneurysm (AAA). The evidence on which to justify operative selection remains uncertain. This review examines the prediction of outcome after attempted open repair of ruptured AAA.
  
  
  METHODS
  The Medline and EMBASE databases and Cochrane Database of Systematic Reviews were searched for clinical studies relating to the prediction of outcome after ruptured AAA. Reference lists of relevant articles were also reviewed.
  
  
  RESULTS
  The last 20 years has seen >60 publications considering variables predictive of outcome after AAA rupture. Four predictive scoring systems are reported: Hardman Index, Glasgow Aneurysm Score, Physiological and Operative Severity Score for Enumeration of Mortality and Morbidity (POSSUM), and the Vancouver Scoring System. No scoring system has been shown to have consistent or absolute validity. Of the remaining data, there are no individual or combination of variables that can accurately and consistently predict outcome.
  
  
  CONCLUSIONS
  Little robust evidence is available on which to base preoperative outcome prediction in patients with ruptured AAA. Experienced clinical judgement will remain of foremost importance in the selection of patients for ruptured AAA repair.
authors.affiliation: Edinburgh Vascular Surgical Service, Clinical & Surgical Sciences (Surgery), Royal Infirmary of Edinburgh, 51 Little France Crescent, Edinburgh, United Kingdom. andrew.tambyraja@ed.ac.uk
authors.forename: Andrew L
authors.initials: AL
authors.lastname: Tambyraja
authors.forename: John A
authors.initials: JA
authors.lastname: Murie
authors.forename: Roderick T A
authors.initials: RT
authors.lastname: Chalmers
mesh_terms: D017544:Aortic Aneurysm, Abdominal / Q000150:complications* / Q000401:mortality / Q000601:surgery; D001019:Aortic Rupture / Q000209:etiology / Q000401:mortality / Q000601:surgery*; D019317:Evidence-Based Medicine; D006305:Health Status Indicators; D006801:Humans; D018579:Patient Selection; D015203:Reproducibility of Results; D018570:Risk Assessment; D012307:Risk Factors; D012720:Severity of Illness Index; D016896:Treatment Outcome; D014656:Vascular Surgical Procedures / Q000009:adverse effects