SINGLE-CENTRE EXPERIENCE WITH INTRASACCULAR FLOW DISRUPTION USING THE CONTOUR DEVICE FOR INTRACRANIAL UNRUPTURED ANEURYSM TREATMENT

Introduction Endovascular treatment of intracranial aneurysms has evolved significantly, with intrasaccular devices (e.g., Contour) offering an alternative to coiling or stent-assisted techniques. However, real-world efficacy and safety data remain limited. Aim of study To evaluate technical success, safety, and shortterm occlusion rates of intrasaccular flow disruption using the Contour device at a single neurointerventional centre. Method A retrospective review of consecutive patients treated from 2023 to 2025 was performed. Demographics, aneurysm features, procedure details, complications, and follow-up at 6 and 24 months were analyzed. Technical success was defined as device deployment without bailout stenting. Occlusion was rated by the Raymond-Ray (RR) classification. Results Seventeen patients (18 unruptured aneurysms) were treated (mean age 61.8 years). Aneurysm location included middle cerebral artery (44.4%), anterior communicating artery (33.4%), and basilar artery (22.2%). Median aneurysm diameter was 6.0 mm, with dome-to-neck ratio below 2 in all cases (mean 1.52 (95% CI 1.38–1.65)). Technical success was achieved in 94% (17/18), with one device failure to open. No procedural complications occurred. At 6 months, 9 patients presented for follow-up: RR I or II was achieved in 88.8% (8/9). One residual aneurysm (RR III) demonstrated only neck remnant (RR II) at 24 months.
Conclusion Our single-centre experience demonstrates that Contour intrasaccular flow disruption achieves a high technical success rate and favorable occlusion outcomes with minimal complications. Short-term follow-up indicates durable aneurysm closure, though further research is needed to assess longterm outcomes. Conflict of Interest No