Angiographic outcome of intracranial aneurysms with neck remnant following coil embolization (original) (raw)

Journal of neurointerventional surgery, 2014

Abstract

The degree of aneurysm occlusion following coil embolization has an impact on aneurysm recanalization. To explain the natural history of intracranial aneurysms with neck remnant, Raymond-Roy Occlusion Classification (RROC) class II. A single-center, retrospective study of 198 patients with 209 aneurysms treated with coil embolization that were initially either RROC class I or II. The angiographic outcomes at short- and long-term follow-up were compared as well as the complication/re-treatment rates. Atypical aneurysms and those that had been previously treated were excluded. Ninety-nine class I aneurysms were compared with 110 class II aneurysms. There was no difference in recanalization rate between the groups (class I 3.3% vs class II 8.5%, p=0.478) at short-term follow-up (8.2 months) and at subsequent follow-ups (21.7 and 52.1 months). There was also no difference in re-treatment rates (class I 3.3% vs class II 8.5%, p=0.196) or complication rates (class I 9.1% vs class II 4.6%,...

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