Interventional microcoil embolization for the treatment of intracranial aneurysms

Objective To discuss the techniques of interventional embozliation with microcoils for treatment of intracranial aneurysm and evaluate the clinical efficacy.Methods One hundred and nineteen intracranial aneurysms were embolized with microcoils in 114 patients among them 107 patients presented with subarqchnoid hemorrhage(SAH).There were 24 wide-neck aneurysms in which 5 were embolized with stent-assistant technique.Two fusiform vertebral artery aneurysms were embolized with also occlusion of the panent vessles.Results Intraarterial embolization was successfully performed in 118 of 119 aneurysms.The total occlusion achieved in 72 aneurysms(60.5%),nearly total in 30(25.2%),subtotal in 13(10.9%),partial in 3(2.5%)and failed in 1(0.8%).Intraoperative aneurysm rupture occurred in 6 patients with anterior communicating aneurysms.All of them were densely packed with futher coiling.Five patients recovered well and another patient had neurological deficit.Three patients(2.5%) died from original severe hemorrhage or cerebral vasospasm within 1 month after aneurysm embolization and all belonged to Ⅳ-Ⅴgrade according to Hunt-Hess classification.Conclusions Embolization of intracranial aneurysms with microcoils is safe and effective.Early coiling is active for prevention of re-rupture.(J Intervent Radiol,2006,15: 580-584)