P096 eCLIPs in the endovascular treatment of bifurcation aneurysms – a single center experience

<h3>Introduction</h3> It is challenging to achieve a durable occlusion in endovascular treatment of aneurysms at the basilar and carotid tip. eCLIPs is a non-tubular device designed to retain coils and divert flow away from bifurcation aneurysms. <h3>Aim of Study</h3> To evaluate the results of eCLIPS treated bifurcation aneurysms. <h3>Methods</h3> Between 2015 and 2022 we identified all patients treated with eCLIPS. <h3>Results</h3> 39 patients, average age 60 years. 22 patients had planned treatment with the eCLIPS device. Aneurysm characteristics: 30 (77%) basilar tip (BT), 6 (15%) carotid terminus (CT), 3 (8%) anterior communicating (ACA);10 (26%) recurrent after prior treatment; 7 (18%) previously ruptured. eCLIPs implant was successful in 34/39 (87%) of cases. Failure to implant was due to malalignment in 4, microguidewire trauma in 1. No patient had regression of mRROC score on follow-up imaging. <b>Safety</b>: Two patients (5.1%) had procedural safety events: 1 thrombus with minor thalamic infarct, mRS 1 at discharge and 1 microguidewire trauma leading to SAH. One patient (5%) required repeat coiling. No subsequent safety events occurred through follow-up. <h3>Conclusion</h3> eCLIPs has an effective flowdiversion effect, and it enables durable coilsupport. Aneurysm occlusion grade remained unchanged or better at all follow-up timepoints. eCLIPS has a satisfactory safety profile. <h3>Disclosure of Interest</h3> no.