Abstract Body

1. Background and purpose

Ruptured Abdominal Aortic Aneurysm (AAA) early diagnosis reduces mortality. According to literature 50% of Aortic Ectasias (AE) evolves into AAA, thus an adequate control contributes to stop its progression.

The aim was to assess prevalences of AAA and AE in men above 50 years old in the Spanish province of Lleida and to describe risk factors.

2. Methods

Descriptive and longitudinal study using data from ILERVAS study[1].

Sample was described by calculating prevalences of AAA and EA plus conditioning to risk factors: Smoking, hypertension, dyslipidemia and obesity.

3. Results

Sample consisted in 1125 participants between the ages of 58 and 66. 18 of them have AAA and 62 AE. 31.1% of they were obese, 74.6% smokers, 52.2% hypertensive and 51.2% dyslipidemics.

AAA sample prevalence is 1.6% (CI95%: 0.867-2.33). For smokers and obese was found an estimation higher and significant: 2.1% (CI95%: 1.053-2.947) and 2.6% (CI95%: 0.933-4.267).

AE sample prevalence is 5.5% (CI95%: 4.168-6.832). Smokers and hypertensive throw higher and significant values: 5.8% (CI95%: 4.006-7.934) and 5.9% (CI95%: 4.079-7.921).

4. Conclusions

Prevalences of AAA and AE showed to be similar to those found in literature for Spain. Smoking seems to be a common risk factor for both.

Given the rate of evolution from AE to AAA mentioned, 31 participants with AE could develop AAA in 5 years if risk factors remain uncontrolled.

[1] Betriu, À. et al. Estudio de intervención aleatorizado para evaluar la prevalencia de enfermedad ateromatosa y renal ocultas y su impacto en la morbimortalidad: Proyecto ILERVAS. Nefrología 36, 389–396 (2016).