The low-profile Neuroform Atlas stent in the treatment of wide-necked intracranial aneurysms - immediate and midterm results: An Italian multicenter registry

Background and purpose. – Wide-necked brain aneurysms therapy remains a challenge for neurointer-ventionalists, mainly for the high recurrence rate. Low-profile stents make feasible the treatment of theseaneurysms. In our multicenter series we analyzed clinical and angiographic results of Neuroform Atlasstent-assisted coiling.Materials and methods. – From January 2016 to March 2017, 113 wide-necked aneurysms were discoveredwith CTA, MRA and DSA. The Atlas stent-assisted coiling procedures were performed under generalanesthesia with sequential or jailing techniques. Six months follow-up DSA was performed to assess therecurrence rate through the modified Raymond-Roy occlusion scale (RROC). Moreover, patients wereevaluated clinically to analyse the degree of disability according to the mRS. MRI was performed at 12months evaluating both the cerebral tissue and the vessels.Results. – In all the procedures it was feasible to navigate the Neuroform Atlas to the goal vessel and deploythe stent across the aneurysmal neck. Intra-procedural complications account for the 6.2% (7/113). Theimmediate occlusion rate was RROC 1 in 88%, 2 in 9% and 3 in 3% of cases. The 6 months clinical datashowed mRS Score 0–1 in 96.5% of patients; 3 patients died of complications related to SAH. The 12 monthsfollow-up showed RROC of 1 in 82%, 2 in 13% and 3 in 5% of cases. No aneurysm has been retreated.Conclusions. – In our multicenter experience the Neuroform Atlas stent assisted-coiling has shown to be asafe and effective technique for the treatment of wide-necked intracranial aneurysms with encouragingclinical and angiographic results.