Abstract
Introduction
To report long-term imaging findings of 101 patients with 129 unruptured intracranial aneurysms (UIA) treated by embolization.
Methods
A retrospective review of our prospectively maintained database identified all patients with an UIA treated by embolization with coils only and with a minimal 12-month imaging follow-up. The clinical charts, procedural data, and angiographic results were reviewed.
Results
Between March 2004 and June 2009, 101 patients with 129 UIA were identified (71 women/30 men, mean age = 51.4 years). Ninety-four aneurysms (73%) were large (10–25 mm), and 35 (27%) were small (<10 mm). Aneurysms mean size was 10.7 mm (median, 9 mm; range 3–22 mm); 87 UIA (67.5%) had a small neck (<4 mm or neck/sac ratio < 0.7), and 42 (32.5%) had a wide neck (≥4 mm or neck/sac ratio ≥ 0.7). Selective coiling with bare/coated coils was performed in 125 cases and four cases, respectively. The balloon-assisted technique was used in 47 cases (36.4%). Only one patient experienced a symptomatic complication (thromboembolism) and kept a slight hemiparesis. Immediate results included 77 complete occlusions (59.7%), 45 neck remnants (34.9%), and 7 incomplete occlusions (5.4%). Mean imaging follow-up of 32 months showed 104 stable occlusions (80.6%), 12 further thrombosis (9.3%), 7 major recanalizations (5.4%), and 6 minor recanalizations (4.7%). Retreatment was required in seven wide-necked and/or large aneurysms including four treated with coated coils. No bleeding occurred during follow-up.
Conclusion
Selective embolization of UIA is associated with stable long-term anatomical results and low retreatment rate.
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Bandeira, A., Raphaeli, G., Balériaux, D. et al. Selective embolization of unruptured intracranial aneurysms is associated with low retreatment rate. Neuroradiology 52, 141–146 (2010). https://doi.org/10.1007/s00234-009-0607-7
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DOI: https://doi.org/10.1007/s00234-009-0607-7