Flow Diverter Treatment and 1-Year Follow-Up for a Complex Anterior Communicating Artery Aneurysm: a case report

Abstract Flow diverters have revolutionized intracranial aneurysm management. However, their application in the anterior communicating artery complex—a region densely populated with perforating vessels—remains relatively contraindicated, primarily due to significant concerns regarding perforator occlusion and in-stent thrombosis. Here we report a 54-year-old male patient with multiple irregular aneurysms located in the anterior communicating artery complex. Flow diverter placement was performed under general anesthesia. Postoperatively, the patient developed an acute cerebral ischemic event, which resolved completely with active adjustment of the antithrombotic regimen. No recurrence of symptoms was observed during the one-year follow-up period, and subsequent angiography confirmed complete aneurysm occlusion. Therefore, with adequate preoperative planning and appropriate postoperative antithrombotic management, flow diverter for complex multiple anterior communicating artery aneurysms is feasible. Future large-sample studies are needed to validate these findings.