Abstract
Although the natural course of extracranial carotid artery aneurysms (ECAAs) is still unknown, they may cause stroke or cranial nerve dysfunction unless they are treated. In this report, we reviewed the clinical results of 6 patients who underwent endovascular and surgical treatments for ECAAs. A total of 6 patients underwent endovascular and surgical treatments for ECAAs for 9 years. The primary causes of ECAAs included Marfan syndrome (1 patient), infection (1 patient), trauma (2 patients), and unknown (2 patients). All 6 ECAAs were symptomatic. One patient underwent surgical resection of the ECAA followed by end-to-end anastomosis of the internal carotid artery (ICA). Another patient underwent proximal ICA ligation combined with high-flow external carotid artery-to-middle cerebral artery bypass using a radial artery graft, because the patient also had a giant thrombosed aneurysm in the cavernous portion of the ipsilateral ICA. Endovascular treatment was selected in the other 4 patients using a covered stent or a bare metal stent combined with coil embolization. Of these patients, one required proximal ICA ligation followed by superficial temporal artery-to-middle cerebral artery anastomosis due to an anatomical problem for stent placement. There was no neurological deterioration at the discharge in all but 1 patient who suffered ischemic stroke during surgery. Surgical or endovascular treatment yielded a relatively satisfactory outcome in patients with ECAAs.
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