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[Iliac aneurysm compared with abdominal aorta aneurysm]
S Vammen1, E W Henneberg, H Fasting
1Karkirurgisk afdeling, Viborg Sygehus.
Ugeskrift for Laeger
|September 12, 2000
Summary
Iliac aneurysms (IA) are often underdiagnosed and present with urological symptoms or rupture. Ruptured iliac aneurysms have a higher mortality rate compared to abdominal aortic aneurysms (AAA).
Area of Science:
- Vascular Surgery
- Epidemiology
- Aneurysm Research
Background:
- Abdominal aortic aneurysms (AAA) are well-studied, but iliac aneurysms (IA) are less understood.
- Comparing the characteristics of AAA and IA is crucial for diagnosis and treatment.
Purpose of the Study:
- To compare the epidemiology, risk factors, and clinical manifestations of iliac aneurysms (IA) and abdominal aortic aneurysms (AAA).
- To evaluate the diagnostic challenges and outcomes associated with IA and AAA.
Main Methods:
- Screening of 5,470 men aged 65-73 for AAA.
- Review of 350 patients operated for central aneurysms (1989-1997) in Viborg, Denmark.
- Comparative analysis of epidemiological data, risk factors, symptoms, rupture rates, and mortality.
Main Results:
- AAA prevalence was 4.0% in screened men; 0.56% required AAA operation, while 0.17% required IA operation.
- IA patients had lower cholesterol levels and higher rates of urological symptoms (42% for isolated IA vs. 8% for isolated AAA).
- Rupture rates were significantly higher for isolated IA (58%) and combined IA/AAA (47%) compared to isolated AAA (27%). Mortality was highest in ruptured IA (57%).
Conclusions:
- Iliac aneurysms are likely underdiagnosed, often presenting with urological symptoms or rupture.
- Ruptured iliac aneurysms exhibit higher lethality than ruptured abdominal aortic aneurysms.
- Further research into IA diagnosis and management is warranted.