Follow-up observation of intracranial aneurysms with Guglielmi detachable coil embolization

Objective To evaluate the middle long term efficacy of intracranial aneurysms with Guglielmi detachable Coil (GDC) embolization Methods 131 cases with 134 aneurysms were embolised with GDC Of them, 39 aneurysms were in the anterior communication artery, 45 in the posterior communication artery, 19 in the siphon segment of internal carotid artery, 14 in the mediate cerebral artery, 3 in the anterior cerebral artery, 9 in the posterior circle and 5 in other A wide neck ( neck4 mm,or aneurysm body/neck2 ) showed in 39 aneurysms, narrow neck in 79 and unclear in 16 Follow up DSA was performed in the period of 15 months after procedure in all 134 aneurysms, and a comparison to post embolization DSA was maken Results In 134 aneurysms with GDC embolization, a total or nearly total occlusion was aquired in 30 of 39 wide neck aneurysms (76 92%) and in 75 of 79 narrow neck aneurysms (94 94%), χ 2=8 643, P 0 01 Follow up DSA showed no change in 118 aneurysms which were a total or nearly total occlusion on post embolization DSA In 16 aneurysms with subtotal or partial occlusion, re open of aneurysm showed in 9 cases, reduced in 3, no change in 4 on follow up DSA Conclusion Although the recent midium term efficacy of intracranial aneurysms with GDC embolization is in the affirmative, a period follow up DSA is essential, especially in aneurysms with subtotal or partial occlusion Again, re embolization with GDC is recommended in a re open aneurysm