Author(s): Macedo, Thiago Andrade ; Drager, Luciano Ferreira ; Pedrosa, Rodrigo Pinto ; Muela, Henrique Cotchi Simbo ; Costa-Hong, Valeria ; Kajita, Luiz Junia ; Bortolotto, Luiz Aparecido
Date: 2017
Origin: Oasisbr
Subject(s): Intermittent Claudication; Renal Artery Stenosis; Renal Angiography
OBJECTIVE: The purpose of this study was to evaluate the association between the presence of clinical symptoms of peripheral artery disease and severe renal artery stenosis in patients referred for renal angiography. METHOD: We included 82 patients with clinical suspicion of renovascular hypertension and performed an imaging investigation (renal Doppler ultrasound and/or renal scintigraphy) for possible renal artery stenosis. All patients underwent renal arteriography and were examined for peripheral artery disease based on the presence of intermittent claudication and ankle-brachial index test results. Severe renal artery stenosis was defined as a lesion causing 70% obstruction. RESULTS: Severe renal artery stenosis was present in 32 of 82 (39%) patients. Patients with severe renal artery stenosis were older (63±12 vs 56±12 years, p=0.006), had more intermittent claudication (55 vs 45%, p=0.027), and had a greater prevalence of an ankle-brachial index
