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Inflammatory abdominal aortic aneurysms (IAAA): past and present
Sharath C V Paravastu1, David Murray, Jonathan Ghosh
1Department of Vascular and Endovascular Surgery, Manchester Royal Infirmary, Oxford Road, Manchester, UK. sharathparavastu@googlemail.com
Vascular and Endovascular Surgery
|June 27, 2009
Summary
The incidence and gender of inflammatory abdominal aortic aneurysms (IAAA) remain unchanged. However, incidental findings and rupture presentations have significantly increased over five decades.
Area of Science:
- Vascular Surgery
- Aortic Aneurysm Research
Background:
- Inflammatory abdominal aortic aneurysms (IAAA) represent a distinct subset of abdominal aortic aneurysms.
- Understanding temporal trends in IAAA presentation and outcomes is crucial for clinical management.
Purpose of the Study:
- To evaluate changes in the presentation and outcomes of IAAA over a five-decade period.
- To compare contemporary IAAA data with historical findings from 1972.
Main Methods:
- Retrospective analysis comparing patient data from January 2001 to December 2007 with a 1972 report.
- Assessment of IAAA incidence, patient demographics, presentation (symptomatic vs. incidental), rupture rates, and mortality.
Main Results:
- IAAA incidence and male-to-female ratio (12:1) remained consistent.
- Incidental IAAA presentation increased fourfold, and ruptured IAAA presentation doubled.
- Thirty-day mortality was 13% (elective 11.5%, emergency 17%).
Conclusions:
- The fundamental incidence and gender distribution of IAAA have not changed over 50 years.
- Increased incidental diagnosis of IAAA reflects evolving patient evaluation and imaging practices.
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