Tratamento endovascular do aneurisma da aorta abdominal em paciente com insuficiência renal crônica Endovascular treatment of abdominal aortic aneurysm in a patient with chronic renal failure

Abstract Non-dialytic chronic renal failure is a contraindication related tothe endovascular treatment of abdominal aortic aneurysms. The useof alternative contrast agents, such as gadolinium, provides good-quality images and is associated with nephrotoxicity. We report a caseof endovascular treatment of an abdominal aortic aneurysm guidedby color-flow Doppler ultrasonography. An 82-year-old male patient,with abdominal aortic aneurysm (55 mm in diameter) and creatinineclearance of 17 ml/min, underwent implantation of modular bifurcatedaortic stent-graft, using that imaging method associated withradioscopy. Iodinated contrast was not used. The immediate resultand 1- and 6-month controls showed complete aneurysm exclusion.Renal function is still unaltered. We conclude that the stent-graftimplantation guided by color-flow Doppler ultrasonography inpatients with nonterminal chronic renal failure and with favorableanatomy is a feasible and safe method.Keywords: Endovascular treatment, abdominal aortic aneurysm,renal failure, color-flow Doppler ultrasonography, duplex scan.