Abstract:Objective To retrospectively analyze the safety and clinical efficacy of endovascular treatment for traumatic intracranial internal carotid artery pseudoaneurysm (TIICAP) in a single center. Methods The data of patients with intracranial aneurysms, who underwent cerebral angiography from Sep. 2005 to Sep. 2019 in our Stroke Center, were reviewed consecutively. Patients with TIICAP were selected according to the inclusion criteria. The operative methods and perioperative antiplatelet drug treatment strategies were analyzed, and the therapeutic effect and clinical and imaging followup results were summarized. Results A total of 29 patients with TIICAP were enrolled, including 19 (65.5%) males and 10 (34.5%) females, with a median age of 47 (30, 53) years (range, 14-70 years). Endovascular treatment was successfully performed in the 29 cases, including 3 cases treated with covered stent implantation, 9 with flow diverter implantation, 11 with stent-assisted coiling embolization, 2 with coiling embolization and 4 with parent artery occlusion. One patient receiving parent artery occlusion suffered from rebleeding before operation, and died after operation. One patient receiving parent artery occlusion had ischemic stroke and died after operation. None of the remaining 27 patients had complications. Twenty-three patients were followed up by imaging. Thirteen of them were cured, 5 were improved, 2 were stable and 3 had recurrence, and the 3 recurrence cases were cured by endovascular treatment again. Twenty-four patients had clinical follow-up data, and the clinical outcomes were stable or improved. Conclusion Endovascular treatment is an effective method for TIICAP. The preliminary superiorities of novel techniques, including flow diverter and covered stent, deserve further confirmation.