The evolution of non-reconstructive methods of endovascular treatment of cerebral aneurysms

The evolution of endovascular treatment of cerebral aneurysms has logically developed in the direction from non-constructive methods (treatment of aneurysms using detachable balloons, using liquid embolizing agents, occlusion of aneurysms with detachable coils, occlusion of aneurysms with balloon-assisted coils, implantation of various types of intradaccular devises) to reconstruction of the artery segment carrying the aneurysm (occlusion of aneurysms with stent-assisted coils and the use of flow-diverters). The effectiveness of these methods, including in the treatment of patients in the acute period of aneurysm rupture, in the immediate postoperative period has been proven by a variety of randomized studies, at the same time, in the long-term period, there are cases of aneurysm recurrence, including those accompanied by its rupture and the need for repeated surgical treatment. It should be noted that the development and modernization of various devices for the treatment of cerebral aneurysms is aimed at reducing the risk of operational complications and achieving greater radicality not only in the near, but also in the long-term postoperative period. The purpose of this review is to describe the stages of development of endovascular treatment of cerebral aneurysms. In this work, we describe the most well-known non-constructive methods of treatment.