Single-Stage Extracranial and Intracranial Stenting of the Internal Carotid Artery in a Patient with Open Circle of Willis and Associated Renovascular Hypertension

We describe a case of 72-year-old patient with recurrent transient ischemic attacks in the right internal carotid artery (ICA) territory associated with uncontrolled hypertension. Duplex ultrasonography und carotid angiography showed a 60% stenosis with signs of a vulnerable plaque in the cervical segment, as well as a 90% stenosis in the cavernous segment of the right ICA. After further examination the patient was diagnosed with an 80% renal artery stenosis. First, the patient had a single-stage stenting for extracranial and intracranial stenoses of the right ICA, then left renal artery stenting. No intraoperative and postoperative complications were observed. These results show that this surgical treatment is minimally invasive, safe, and effective in symptomatic patients and may be considered for the disease.