A Case of Filter Retrieval With an Aspiration Catheter for Filter Occlusion in Emergency Carotid Artery Stenting

During emergency carotid artery stenting (CAS), the obstruction of filters utilized for safeguarding against distal embolization, sometimes caused by substantial plaque or thrombus accumulation, is a frequent challenge. We present the case of an 81-year-old man who underwent emergency CAS in which the filter became occluded and was successfully retrieved using an aspiration catheter, leading to a favorable clinical outcome. Employing an aspiration catheter for filter retrieval is an option for restoring anterograde blood flow and mitigating the risk of distal embolization.