Open versus Endovascular Repair of Para-Anastomotic Aneurysms in Patients Who Were Morphological Candidates for Endovascular Treatment

Abstract

Purpose:

To compare the outcomes of open versus endovascular repair of para-anastomotic aneurysms (PAA) in the aortic and iliac arteries in a cohort of patients who fulfilled morphological criteria for endovascular repair.

Methods:

A retrospective review of 31 consecutive patients with PAA treated between 1985 and 2002 identified 26 (84%) patients who would have been candidates for endovascular repair based on preoperative computed tomography and angiography. Of these 26 patients, 10 (9 men; median age 65 years, range 60–75) underwent endovascular repair; the remaining 16 patients (14 men; median age 61.5 years, range 49–78) had open repair. The baseline data and outcome measures were compared between the treatment groups.

Results:

The patient groups were well matched for age, sex, weight, risk factors, comorbidities, aneurysm length, and elapsed time from initial graft placement. Both groups had technically successful PAA repairs; however, median blood loss (300 versus 1000 mL; p = 0.05) and procedural time (100 versus 215 minutes; p<0.001) were significantly reduced in the endovascular group. Median transfusion volume was significantly greater (1000 versus 0 mL; p = 0.01) in the surgically treated patients. The median stay in ICU was similar (18 versus 24 hours in the surgical cohort). Length of stay was significantly shorter in the endovascular group: 7.5 versus 17.0 days (p = 0.001) after the repair and 11 versus 22 days (p = 0.01) for overall hospitalization. One (10%) patient in the endovascular group died from a myocardial infarction on the third postoperative day. In the open group, there were 3 (19%) procedure-related deaths.

Conclusions:

Patients with PAA who were endograft candidates but who were treated with open repair experienced more morbidity and had more complications than patients treated with stent-grafts. If long-term follow-up demonstrates durable results, stent-graft repair may become the therapy of choice in PAAs.

Keywords

bypass graft para-anastomotic aneurysm abdominal aorta iliac artery open repair endovascular repair stent-graft outcome analysis comparative study

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