Endovascular treatment for complex intracranial aneurysms: lessons learnt in five patients.

We describe our experience in five cases of endovascular treatment for complex intracranial aneurysms. The senior author (ZW) has clinical experience with more than 6000 cases of brain aneurysms treated with endovascular techniques. Multiple endovascular therapies, such as treatment with Onyx, parent vessel occlusion, stent-assisted coiling, covered stent, can be used in an attempt to provide a solution to various clinical dilemmas associated with the management of these difficult lesions. Here, we focus on the latest five patients and lessons learnt in endovascular techniques for complex intracranial aneurysms.On the basis of the knowledge obtained over the years, multimodality endovascular techniques should be re-evaluated to improve patient outcomes.