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  • Title: Outcome of concomitant renal artery reconstructions in patients with aortic aneurysm and occlusive disease.
    Author: Mehta M, Darling RC, Roddy SP, Ozsvath KJ, Kreienberg PB, Paty PS, Chang BB, Resnikoff M, Shah DM.
    Journal: Vascular; 2004; 12(6):381-6. PubMed ID: 15895762.
    Abstract:
    The question remains as to whether patients presenting with aortoiliac occlusive disease (AIOD) or abdominal aortic aneurysms (AAAs) have similar outcomes when concomitant renal artery reconstructions are performed. In this study, we analyzed our experience with simultaneous aortic and renal reconstructions using a retroperitoneal approach. Over a 5-year period, all patients with either AAAs > 5 cm or symptomatic AIOD who were found to have high-grade renal artery stenosis and who underwent aortic reconstructions with concomitant renal revascularization were analyzed through our vascular surgery registry. Morbidity and mortality were quantitatively evaluated. Data were analyzed using the chi-square test. A total of 1,133 patients with AAA (n = 832) and AIOD (n = 301) underwent aortic reconstructions. Two hundred thirty-one patients had 283 concomitant renal revascularizations, including bypass, reimplantation, and endarterectomy, for high-grade (> 70%) renal artery stenosis via a left retroperitoneal approach. The mortality rate of AAA repair with and without renal revascularization was 2.3% (4/178) and 1.5% (10/654), respectively, and that of aortobifemoral bypass for AIOD with and without renal revascularization was 5.7% (3/53) and 2.8% (7/248), respectively. Of the 7 deaths in patients requiring aortic and renal reconstructions, 4 occurred in patients with bilateral renal revascularization. Transient renal insufficiency, ischemic colitis, and cardiopulmonary failure occurred in 5.6%, 2.2%, and 9.6% of patients with AAA repair and in 5.7%, 0%, and 9.4% of patients with AIOD. Two patients developed acute occlusion of their renal bypasses; one was successfully revised, whereas the other led to a nephrectomy. In patients with AAAs, AIOD, and high-grade renal artery stenosis, simultaneous aortic and renal reconstructions can be performed through a retroperitoneal approach with a limited and acceptable mortality. With concomitant renal and aortic procedures, patients with AIOD have a higher mortality when compared with those with AAAs, although this difference is not statistically significant.
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