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  • Title: Renal autotransplantation for vascular disease: late outcome according to etiology.
    Author: Chiche L, Kieffer E, Sabatier J, Colau A, Koskas F, Bahnini A.
    Journal: J Vasc Surg; 2003 Feb; 37(2):353-61. PubMed ID: 12563206.
    Abstract:
    PURPOSE: The purpose of this study was to evaluate the early and late outcomes of renal autotransplantation (RAT) according to the etiology of the underlying renal artery disease. MATERIAL AND METHODS: Between January 1985 and April 2001, we performed 68 RAT procedures in 57 patients. The surgical indications were fibromuscular dysplasia (FMD) for 34 RAT procedures in 30 patients (11 men, 19 women; mean age, 41.3 +/- 14.6 years), Takayasu's disease (TD) for 26 RAT procedures in 19 patients (five men, 14 women; mean age, 33.0 +/- 12.3 years), and atherosclerosis for eight RAT procedures in eight patients (seven men, one woman; mean age, 66.5 +/- 7.9 years). The incidence rate of hypertension was 87% in patients with FMD and 100% in patients with TD and atherosclerosis. The incidence rate of renal dysfunction was 75% in patients with atherosclerosis, 27% in patients with FMD, and 16% in patients with TD. Autotransplantation was isolated in 31 cases and was associated with another vascular procedure in 37 cases, including 22 thoracoabdominal aorta repairs and 11 abdominal aorta or iliac artery repairs. The technique used to achieve renal revascularization was direct reimplantation in 17 cases and indirect reimplantation in 51 cases. The conduit used for indirect reimplantation was an arterial autograft in 42 cases, a vein autograft in seven cases, and a prosthetic graft in two cases. Simultaneous revascularization of the contralateral kidney was performed in 21 patients and included nine RAT procedures. Contralateral nephrectomy was performed in five patients. RESULTS: In the FMD group, early segmental infarction was observed in four cases. Secondary nephrectomy was necessary in one case (at 88 months). Actuarial survival rates were 96.2% +/- 0.03% at 5 years and 84.1% +/- 0.11% at 10 years. Secondary patency rates were 100% at 5 years and 92% +/- 0.07% at 10 years. Hypertension normalized or improved in 96% of patients. Renal function improved in 50% of patients. In the TD group, one patient died of multiple organ failure 4 days after the procedure. Nephrectomy was necessary in one case. The actuarial survival rate was 94.7% +/- 0.05% and the secondary patency rate was 91.3% +/- 0.05% at both 5 and 10 years. Hypertension normalized or improved in 89% of the cases, and kidney function improved in all cases. In the atherosclerosis group, nephrectomy was necessary during the early postoperative period in three cases and during late follow-up in two cases (at 9 months and at 68 months, respectively). Actuarial survival rates were 54.7% +/- 0.2% at 5 years and 18.2% +/- 0.16% at 10 years. The secondary patency rates were 50.0% +/- 0.17% at 5 years and 33.3% +/- 0.18% at 10 years. Hypertension normalized or improved in 50% of cases, and kidney function improved in 33% of cases. CONCLUSION: RAT is highly effective for treatment of complex renovascular lesions related to FMD and TD. Although RAT is less effective for atherosclerosis, it may be the only alternative in cases involving extensive renovascular disease.
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