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Diagnosis and treatment of renal allograft aneurysm:report of 5 cases
Author(s): 
Pages: 246-249
Year: Issue:  4
Journal: CHINESE JOURNAL OF UROLOGY

Keyword:  Kidney transplantationAneurysmInterventional therapy;
Abstract: ObJective To discuss the causes,diagnosis,treatment and outcomes of renal artery aneurysm(RAA). Methods Duriog August 1998 and December 2004,1251 patients underwent rehal transplantation,and 5 men(mean age,43)who received end-to-end anastomose from renal graft artery to the internal iliac artery were found to develop RAA.The main complains included aggravated renal function,sudden oliguria or anuria,hypertension and allograft pain.Color Doppler flow and digital subtraction angiography were used to confirm aneurysm.Size of the RAA were 1.8 cm×2.0 cm×2.0 am to 4.0 cm×4.0 cm×5.0 cm. Results Two aneurysms were located at the anastomotic stoma.One patient who lost renal function 1 month after the aneurysm was diagnosed received nephrectomy,regular hemodialysis,and another renal transplantation 1 year later.The other patient successfully underwent cadaver transplantation without removing the original renal allograft after the renal dysfunction occurred.The renal function remained normal during 2 years'follow-up.Two renal artery aneurysm cases also accompanied with proximate renal artery stenosis.One patient was treated with balloon dilatation and stent implantation,and normal renal function was observed during 1 years followup. Another patient had graft removed and underwent retransplantation.The renal function was excellent during 3 years'follow-up.Atherosclerotic plaque within internal iliac artery anastomotic stoma,which lead to artery stenosis and aneurysm,was found in 1 patient.Two days after the renal allograft was removed,this patient died of brainstem embolism. Conclusions End-to-end anastomose from renal graft artery to the internal iliac artery seems to be related with postoperative complications.Patients with confirmed RAA should be cautiously managed.Retransplantation and interventional thera PY may be the choice.
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