Abstract:

Objective To evaluate the safety and efficacy of endovascular recanalization in the treatment of chronic occlusion of symptomatic internal carotid artery.Methods Chronic intracranial internal carotid artery occlusion endovascular recanalization treatment of 9 cases of patients, in the internal carotid artery occlusion parts C6-C7 segment, 8 cases of recanalization in patients with all used the balloon expansion, including 2 cases using ball expand stents, 6 cases since used of stents, collection was involved all of the patient's clinical information, imaging, and follow-up data were analyzed retrospectively. Results The time from first onset to interventional recanalization was 21-43 days, median 29 days. One of the 9 patients ended the operation because the guide wire failed. The technical success rate was 89.1%(8/9).After surgery, one patient had a reversible central retinal arterial embolization on the treatment side, and there was no high perfusion complication and no death.During 3-12 months of follow-up, one patient developed mild restenosis within the stent (stenosis 30%), and the restenosis rate was 11%, no stroke occurred.Conclusion Endovascular recanalization is safe and feasible in the treatment of chronic occlusion of the internal carotid artery in the intracranial segment, with a high surgical success rate, and can be promoted clinically under strict screening criteria.

Key words: arterial occlusive diseases, intracranial segment of internal carotid artery, recanalization