Abstract
Objective:
We aimed to examine long-term survival rate andthe risk factors of poor prognosis in patients whounderwent open surgery (OS) for abdominal aorticaneurysm (AAA).
Materials and Methods:
We performed a retrospective analysis of thepatients who underwent elective OS for AAAbetween 2005 and 2011 at Tokyo Medical andDental University Hospital. The relations betweenmortality rate and preoperative clinical factorswere examined.
Results:
For this study 195 patients were identified. Themortality was significantly related to size ofaneurysm, type of aneurysm, massive bleedingduring operation, age, anemia, uncontrolledhypertension, and comorbid chronic kidneydisease. No specific leading causes of death wereidentified for these increases in the mortalityrate. Cox proportional hazard model revealed thatanemia, hypertension, and chronic kidney disease(CKD) were independent predictive factors ofhigher mortality in the patients who underwent OSfor AAA.
Discussion:
In our previous study, high preoperative CRPlevel was correlated to long-term death rate afterendovascular aortic aneurysm repair (EVAR) forAAA. The difference might be attributed to the factthat OS relieves the aortic wall tension and reducesthe aortic inflammation, whereas EVAR does not,because of endoleak or endotension.
