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Annals of Transplantation is one of the fast-developing journals open to all scientists and fields of transplant medicine and related research. The journal is published quarterly and provides extensive coverage of the most important advances in transplantation.
Using an electronic on-line submission and peer review tracking system, Annals of Transplantation is committed to rapid review and publication. The average time... read more

Published: 2015-11-24

Endovascular Approach to Transplant Renal Artery Stenosis

André Felipe Farias Braga, Rafel Cespedes Catto, Marcelo Bellini Dalio, Emanuel Junio Ramos Tenório, Maurício Serra Ribeiro, Carlos Eli Piccinato, Edwaldo Edner Joviliano

(Department of Surgery and Anatomy, Division of Vascular and Endovascular Surgery, University of São Paulo, Faculty of Medicine of Ribeirão Preto, Ribeirão Preto, SP, Brazil)

Ann Transplant 2015; 20:698-706

DOI: 10.12659/AOT.894867

BACKGROUND: The endovascular approach has shown high initial technical success rates, good patency rates, and minimal complications in treating transplant renal artery stenosis (TRAS). The objective of this study was to describe our experience with an endovascular approach to TRAS.
MATERIAL AND METHODS: We performed a retrospective single-institutional review of all kidney transplant procedures performed at our institution from September 2009 to September 2014. All consecutive cases of TRAS were included.
RESULTS: From a total of 183 kidney transplantations, 16 patients had TRAS. Mean time from transplantation to TRAS diagnosis was 201.8 days. Stenoses or hemodynamic significant kinkings were located at the anastomosis (7), proximal (5) and middle (4) portions of the transplant artery. All patients were treated with angioplasty and primary balloon-expanding stenting. Early technical success was 93.75% and local complication rate was 12.5%. No deaths occurred. Mean serum creatinine level dropped from 3.87 mg/dL to 2.91 mg/dL after 24 hours; 1.85 mg/dL after one month; and 1.67 mg/dL after three months (P<0.05). Mean estimated glomerular filtration rate increased from 31.60 mL/min to 39.53 mL/min after 24 hours; 50.92 mL/min after one month; and 55.05 mL/min after three months (P<0.05). Doppler ultrasound criteria normalized after the procedure. Number of classes of antihypertensive drugs was not different before and after the procedure (P=0.38). Mean follow-up time was 9.75 months. One patient had a restenosis and required surgi... read more

Keywords: Angioplasty, endovascular procedures, Kidney Transplantation, Renal Artery Obstruction, Stents

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Pei Lu, Jun Tao, Qiang Lu, Zhijian Han, Ruoyun Tan, Min Gu, Changjun Yin

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DOI: 10.12659/AOT.894775

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Ann Transplant 2015; 20:683-693

DOI: 10.12659/AOT.894916