Endovascular Management of the Wide-neck Aneurysms: the Applications of the Coils and Catheter

aneurysms has become an accepted treatment option worldwide (1). However, principal disadvantage of embolization of aneurysms with detachable coils is that embolization could be limited by unfavorable shape of the aneurysms (2-5). Coils packed into the lumen of the wide-neck aneurysms have the inherent difficulty that coils can herniate into the parent vessels. The wide-neck of aneurysms also usually result in incomplete occlusion and correlate with a higher recanalization rate than the corresponding rates for small-necked aneurysms (2, 3). Therefore, the endovascular treatment of wide-neck aneurysms can be technically very challenging. Other unfavorable aneurysm configuration, major branches incorporating with the aneurysm fundus, is the main technical limitations, because this configuration may result in the thromboembolic complication during coil embolization of aneurysms. Although these geometric factor limiting endovascular coil embolization of intracranial aneurysms, technical advance permit successful embolization of the aneurysms that cannot be treated otherwise. Various neck protecting devices, such as temporary balloons or self-expanding stents can increase the rate of successful