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O-064 Comparative analysis of endovascular treatment methods for anterior choroidal aneurysms single center study with 80 aneurysms
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O-064 Comparative analysis of endovascular treatment methods for anterior choroidal aneurysms single center study with 80 aneurysms
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Journal Article
O-064 Comparative analysis of endovascular treatment methods for anterior choroidal aneurysms single center study with 80 aneurysms
2025
Overview
BackgroundAnterior choroidal artery (AChoA) aneurysms are rare and pose a significant treatment challenge due to the artery’s small caliber and critical vascular territory. Endovascular treatment (EVT) has become a preferred approach, but optimal management strategies remain debated. This study compares the efficacy and safety of different EVT techniques, including primary coiling, stent-assisted coiling (SAC), and flow diversion (FD) in treating AChoA aneurysms.MethodsPatients were categorized by treatment modality, aneurysm morphology, and rupture status. Angiographic occlusion rates were assessed using the Raymond-Roy Occlusion Scale (RROS), and clinical outcomes were measured via the Modified Rankin Scale (mRS) at discharge and follow-ups. Statistical analyses compared occlusion rates, procedural complications, and functional outcomes among treatment groups.Results60 patients with 80 aneurysms, 44 (55%) were dependent(choroidal branch arises from aneurysm dome or neck) and 36 (45%) were independent(aneurysm arises adjacent to the choroidal branch) AChoA aneurysms. Primary coiling was performed in 29 cases, SAC in 21, and FD (with or without adjunctive coiling) in 30. Complete occlusion rates were significantly higher with SAC (83.3%) and FD (76.1%) compared to primary coiling (51.7%) (p = 0.007). Flow diversion had a higher rate of technical complications (25%), while ischemic complications were more frequent in dependent aneurysms (p < 0.05). No cases of symptomatic AChoA occlusion were observed after FD treatment. The overall mortality rate was 5%, with all cases occurring in the primary coiling group.ConclusionEVT of AChoA aneurysms is effective, with SAC and FD demonstrating superior occlusion rates compared to primary coiling. FD carries a higher risk of technical complications but maintains AChoA patency. Treatment choice should be guided by aneurysm morphology and patient risk factors to optimize outcomes.Abstract O-064 Figure 1DisclosuresY. Senol: None. H. Ciftci: None. Z. Oz: None. D. Duman: None. B. Sayin: None. M. Ozbakir: None. I. Akmangit: None. A. Belen: None. E. Daglioglu: None.
Publisher
BMJ Publishing Group LTD
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