title: Inflammatory abdominal aortic aneurysms (IAAA): past and present.
abstract: OBJECTIVE
  The aim of the study is to determine whether presentation and outcomes of inflammatory abdominal aortic aneurysms (IAAA) have changed over the last five decades.
  
  
  METHODS
  Comparison of current outcomes (January 2001 to December 2007) with results of the earliest report from our unit in 1972.
  
  
  RESULTS
  In contemporary series, 421 patients underwent AAA repair; 38 (9%) were IAAA. In 58% patients, IAAA was an incidental finding, whereas 42% patients were symptomatic with abdominal or back pain. Of those, 32% were ruptured IAAA. Male-to-female ratio was 12:1. Thirty-day mortality was 13%; elective 11.5%; emergency 17%. Comparison with 1972 study showed no change in the incidence and gender predilection. Presentation as an incidental finding and rupture increased 4- and 2-folds, respectively.
  
  
  CONCLUSIONS
  The incidence and gender predilection of IAAA have remained unchanged. The 4-fold increase in the presentation as an incidental finding reflects current trends in patient evaluation.
authors: Department of Vascular and Endovascular Surgery, Manchester Royal Infirmary, Oxford Road, Manchester, UK. sharathparavastu@googlemail.com
authors: Sharath C V
authors: SC
authors: Paravastu
authors: David
authors: D
authors: Murray
authors: Jonathan
authors: J
authors: Ghosh
authors: Ferdinand
authors: F
authors: Serracino-Inglott
authors: J Vincent
authors: JV
authors: Smyth
authors: Michael G
authors: MG
authors: Walker
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D000367:Age Factors; D000368:Aged; D017544:Aortic Aneurysm, Abdominal / Q000150:complications / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery*; D001019:Aortic Rupture / Q000000981:diagnostic imaging / Q000209:etiology / Q000401:mortality / Q000601:surgery*; D001025:Aortitis / Q000150:complications / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery*; D001027:Aortography / Q000379:methods; D001416:Back Pain / Q000209:etiology; D005260:Female; D006801:Humans; D033162:Incidental Findings; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012737:Sex Factors; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014656:Vascular Surgical Procedures / Q000009:adverse effects / Q000401:mortality