Abstract

A 63-year-old woman with extensive atherosclerotic vascular disease, including long-standing renal artery stenosis, was evaluated for newly uncontrolled hypertension with frequent headaches despite the use of 4 antihypertensive agents. Her blood pressure had been well controlled previously. She had a remote history of right renal artery occlusion and had undergone left renal artery stenting 9 years before presentation. In-stent restenosis had been treated twice with balloon angioplasty since that time. Repeat duplex ultrasound was ordered for suspicion of recurrent in-stent restenosis. Duplex ultrasound of the left renal artery with the patient in the supine position demonstrated peak …

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