Proximal Protection Technique for Migrated Closed-Cell Stents in Carotid Artery Stenting

This case report details an innovative management strategy for a migrated and shortened closed-cell stent in carotid artery stenting (CAS). A 78-year-old male underwent CAS, which was initially successful. However, stent migration the following day complicated the outcome, obstructing the external carotid artery (ECA). We addressed this by navigating a Scepter XC microballoon (MicroVention, Tustin, CA) through the stent's cells to occlude the ECA and utilizing a balloon-guiding catheter in the common carotid artery for proximal protection. This approach enabled successful additional CAS without complications. Our technique highlights the importance of adaptable strategies in managing rare CAS complications.