Retinal Hemorrhage After Internal Carotid Artery Aneurysm Flow Diversion with Pipeline Vantage: A Case Report

Brain aneurysms can be treated with flow diversion embolization. We describe a case of an internal carotid artery aneurysm treated with the Pipeline Vantage flow diverter device, who developed a post-procedural retinal hemorrhage, presenting as an acutely presenting, painless “floater” in the visual field. Outpatient evaluation by a retinal specialist yielded a recommendation to observe the hemorrhage, with the option to intervene with retinal surgery if the hemorrhage worsens or does not resolve. Within one month, there was substantial improvement in his visual symptoms without need for further intervention, and follow-up imaging demonstrated that the aneurysm was successfully treated.