A rare bilateral internal carotid artery occlusion (BICAO) with mild clinical symptoms and no risk factors-etiology, collateral circulation and clinical management: case report

作者：Chen, Ruiqi; Xiao, Anqi; Xing, Lu; You, Chao^*

来源：International Journal of Clinical and Experimental Medicine, 2018, 11(3): 2785-2789.

• Bilateral internal carotid artery occlusion
• ischemic infarction
• case report

Bilateral internal carotid artery occlusion (BICAO) is a rare disease that often results in a fatal ischemic event. So far, only a few cases of BICAO with severe clinical symptoms have been reported, most of which developed serious cerebral infarction, presented poor outcomes and carried a risk of recurrent ischemic events. We report here a case of a 46-year-old female BICAO patient with no evidence of cerebral infarction but only presenting mild clinical symptoms, such as dizziness and nausea. Interestingly, all known risk factors of atherosclerosis and artery stenosis/occlusion were negative. Digital subtraction angiography (DSA) and computed tomography angiography (CTA) demonstrated that a high-flow collateral circulation was formed through the vertebrobasilar system. Due to the mild clinical presentations, conservative therapy and timely follow-up were selected for the patient. Based on our case, three possible hypotheses of BICAO formation are discussed. As the proper treatment of BICAO is still controversial, we believe that long-term observation is necessary to obtain a better understanding of the therapeutic effects.

• 出版日期2018
• 单位四川大学