Results of abdominal aortic aneurysm surgery according to anatomic and comorbid factors.

Purpose. To determine the predictivity of anatomic and co-morbid factors fo r peri-operative mortality of patients operated for a non-ruptured abdomina l aortic aneurysm (AAA). Methods. Between 1986 and 1996, data had been collected prospectively in a computerized date base. A chi-square test was per formed for 5 anatomic, an d 8 co-morbid criteria. Results. 25 of 470 patients (5,3 %) died within one month after surgery. An eurysm diameter (P = 0,004) and aneurysmal internal iliac artery (P = 0,019 ) were associated with an increased mortality whereas upper extension of th e disease necessitating a juxta-renal anastomosis, the need for inferior me senteric artery reimplantation, or a symptomatic ilio-femoral occlusive dis ease, were not. Age (P = 0,016), obesity (P = 0,03), alteration of left ven tricular function (P = 0,0014), and preoperative renal failure (P = 0,0001) were associated with increased mortality. Conclusion. Both anatomic and co-morbid factors can predict outcome after e lective surgery for non-ruptured AAA. The criteria might help to selection patients who might benefit from endovascular treatment of AAA.