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Jornal Vascular Brasileiro

Print version ISSN 1677-5449On-line version ISSN 1677-7301


JESUS-SILVA, Seleno Glauber de et al. Risk factors and short and medium-term survival after open and endovascular repair of abdominal aortic aneurysms. J. vasc. bras. [online]. 2018, vol.17, n.3, pp.201-207.  Epub Sep 06, 2018. ISSN 1677-5449.


Infrarenal abdominal aortic aneurysms (AAA) are responsible for high rates of rupture-associated morbidity and mortality and can be treated by open or endovascular surgery.


To analyze risk factors and survival associated with surgical and endovascular AAA treatment methods.


A retrospective, longitudinal study involving 41 patients who underwent endovascular or open AAA repair, whether elective or emergency, over a 48-month period, with analysis of preoperative comorbidities, 30-day and 1-year survival, in-hospital mortality, length of hospital stay, transfusion of blood products, duration of surgery, and development of acute kidney failure. Inferential statistics and survival analysis considered a 95% CI and p < 0.05 as significant.


Twelve of the 41 patients were treated with open surgery and 29 with endovascular techniques. The majority were male (75%), with an average age of 71 (range: 56 – 90 years). There were no differences in demographic or risk factors between the groups. Overall survival rates for open and endovascular repair were different for both 30 days (37 vs. 72%, p = 0.01) and 360 days (37 vs. 67%, p = 0.01). However, survival rates in elective cases were similar at 30 days (71 vs. 76%, p = 0.44) and 360 days (both 71%, p = 0.34). Endovascular repair showed shorter length of hospital stay (3.0 vs. 4.4 days; p = 0.02) and duration of surgery (111 vs. 163 min; p < 0.01) compared to open repair.


There was no difference in short- or medium-term survival of AAA patients treated electively with endovascular or open surgery. Hospital stays and duration of surgery were both shorter with minimally invasive treatment.

Keywords : abdominal aortic aneurysm; risk factors; blood vessel prosthesis implantation; survival analysis.

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