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  • Title: Concomitant renal revascularization with aortic surgery: are the risks of combined procedures justified?
    Author: Taylor SM, Langan EM, Snyder BA, Cull DL, Sullivan TM.
    Journal: Am Surg; 2000 Aug; 66(8):768-72. PubMed ID: 10966038.
    Abstract:
    Indications for concomitant renal revascularization during aortic surgery are not well established. Higher mortality and poorer results are often cited. To examine this, all combined aortic and renal revascularization procedures from August 1992 until May 1998 were reviewed. Of 2003 major arterial reconstructions performed on the Vascular Teaching Service, 45 patients (2%) underwent renal revascularization. Of these 31 patients (69%) had combined aortic and renal procedures. Aortic pathology in these 31 patients (54% male, 94% white, median age 64 years) included arterial occlusive disease (n = 21; 47%), abdominal aortic aneurysm (n = 6; 13%), and thoracoabdominal aortic aneurysm (n = 4; 9%). In all 31 cases the patient presented because of the aortic pathology. Indications for concomitant renal revascularization included renovascular hypertension (n = 21; 68%) and preservation of renal function (n = 10; 32%). Renal revascularization procedures included transaortic endarterectomy (n = 23; 74%), renal bypass (n = 7; 23%), and both bypass and endarterectomy (n = 1; 3%). Seven (22%) complications and two (6%) deaths (both patients operated on for renal salvage) occurred perioperatively. Complications included wound infection (n = 2; 6%), postoperative bleeding (n = 1; 3%), respiratory failure (n = 1; 3%), deep venous thrombosis (n = 1; 3%), cerebrovascular accident (n = 1; 3%), and pseudomembranous enterocolitis (n = 1; 3%). All patients either were cured of their hypertension (n = 5; 24%) or were improved (n = 16; 76%) at 3 months. No patient to date operated on for renal salvage progressed to chronic hemodialysis, but mortality was higher after renal revascularization for renal salvage versus hypertension (20% vs. 0; P = 0.034). There was no significant difference in mortality between the combined aortic/renal procedures versus aortic procedures alone. Despite adding complexity, renal revascularization in patients undergoing aortic surgery appears relatively safe and effective. These data favor an aggressive approach toward renal revascularization in selected patients needing aortic surgery.
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