A novel treatment approach for common carotid artery bifurcation aneurysms

An aneurysm involved in common carotid artery (CCA) bifurcation is a rare clinical condition. There are not enough natural follow-up data, and there is no evidence-based treatment algorithm [1]. An endovascular approach is used to treat CCA bifurcation aneurysms, as it offers some advantages in selected patient populations; nonetheless, closure of the aneurysmal segment in CCA bifurcation using a graft stent has some challenges, mainly occluding the ostial part of the external carotid artery (ECA). Coil embolization of a CCA bifurcation aneurysm is preferred over graft stent implantation in this condition; however, coil embolization cannot provide appropriate treatment in patients suffering from a CCA bifurcation aneurysm with significant stenosis in the proximal part of the internal carotid artery (ICA). Herein, we present a male patient whose CCA bifurcation aneurysm with significant stenosis in the proximal part of the ipsilateral ICA was successfully treated with the implantation of two nested self-expandable closedcell stents.