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Saudi Journal of Kidney Diseases and Transplantation
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BRIEF COMMUNICATION Table of Contents   
Year : 1998  |  Volume : 9  |  Issue : 1  |  Page : 22-26
Renal Artery Stenosis in Renal Transplantation Presentation and Management

Department of Nephrology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia

Correspondence Address:
Ali Al-Harbi
Department of Internal Medicine, North West Armed Forces Hospital, P.O. Box 100, Tabuk
Saudi Arabia
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PMID: 18408278

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A review of the angioplasty records between 1990 and 1995 at the King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia revealed ten cases of transplant renal artery stenosis (RAS). The diagnosis in these cases was confirmed by renal angiography and all were treated by angioplasty. All study patients presented with uncontrolled hypertension in spite of multiple medications; eight had renal functional impairment and two patients had recurrent unexplained pulmonary edema in addition. Six patients had undergone end-to-end anastomosis, while four had end-to-side anastomosis of the artery during transplantation. Four had cadaveric renal transplants and six had living donor renal transplants. Eight of these patients responded well to angioplasty with marked improvement in their renal function and reduction in the number of anti-hypertensive medications. In one patient, it was not possible to pass the catheter through the stenosis and the patient underwent surgical reconstruction, while in another patient there were multiple stenotic lesions involving the external iliac and the transplant renal arteries suggesting atherosclerotic changes. We conclude that renal artery stenosis should be suspected in patients after renal transplant if they have uncontrolled or worsening hypertension, unexplained renal impairment or presentation with unexplained recurrent pulmonary edema. Renal angiography should be considered as part of the investigation of hypertension in renal transplant patients, and if the RAS is confirmed, angioplasty should be the procedure of choice.

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