Is long-term follow-up of adequately coil-occluded ruptured cerebral aneurysms always necessary? A single-center study of recurrences after endovascular treatment

Abstract

Most aneurysms adequately occluded at 6 months did not show evidence of late recurrence. Large and wide-neck aneurysms are, however, at greater risk of later recurrence.

Follow-Up DSA at Day 9 ± 2 after Subarachnoid Hemorrhage Predicts Long-Term Recurrence of Ruptured Cerebral Aneurysm after Coiling

“…A small number of papers have reported recurrence and / or retreatment of ruptured cerebral aneurysm after coiling in relation to the location of the aneurysm. [3][4][5][6] Although the long-term stability of aneurysm occlusions has improved over time, the rate of recurrence differs with various aneurysm locations. High recurrence rates for an IC-PC aneurysm and a BA aneurysm have been reported, but no report has described a high recurrence rate for a coiled ruptured proximal IC aneurysm.…”

“…1,2) The rate of aneurysm recurrence is also related to the location of the aneurysm. [3][4][5][6] An internal carotid artery-posterior communicating artery (IC-PC) aneurysm and a basilar artery (BA) tip aneurysm showed a 9.3%-55% recurrence rate. 3,5,6) Advances in technology have continued to decrease the rate of recurrence of a coiled aneurysm from 8.8% to 4.8%.…”

Estimated pretreatment hemodynamic prognostic factors of aneurysm recurrence after endovascular embolization

“…The present study analyzed a group in which no significant differences were apparent between the recurrence group and stable group in aneurysm size , wide neck, or low coil packing ratio, all of which have previously been considered as factors potentially associated with recurrence after endovascular treatment [ 1 , 2 , 3 , 4 , 5 , 14 , 15 , 16 ]. As a VER 20% has been reported to be a significant factor for recurrence, the present study selected cases with VER 20% for analysis [ 1 , 3 , 4 , 16 ].…”

Stent-assisted embolization of wide-neck anterior communicating artery aneurysms: Review of consecutive 34 cases

“…As it was demonstrated in the International Subarachnoid Aneurysm Trial (ISAT), angiographic occlusion rates of coiling in long-term follow-up are worse than the rates for microsurgical clipping [26]. Hence, the imaging follow-up after endovascular treatment is mandatory [27]. It is reported that the majority of adequately coil-occluded cerebral aneurysms at initial follow-up of 6 months do not require further imaging follow-up [27].…”

“…Hence, the imaging follow-up after endovascular treatment is mandatory [27]. It is reported that the majority of adequately coil-occluded cerebral aneurysms at initial follow-up of 6 months do not require further imaging follow-up [27]. Therefore, we perform routinely first follow-up angiography at 6 month after initial treatment and in cases of complete aneurysms obliteration we do not follow-up patients any longer.…”