To evaluate the clinical efficacy of the Neuroform Atlas stent in the endovascular treatment of wide-neck intracranial aneurysms (WNIAs).

A retrospective analysis was conducted on the clinical data of 27 patients with WNIAs who underwent Neuroform Atlas stent-assisted intervention in the Neurosurgery Department of Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital from October 2022 to October 2024. Postoperative DSA was performed immediately, and the Raymond-Roy classification was used to assess aneurysm occlusion status. Perioperative complications were recorded. Clinical outcomes were evaluated using the modified Rankin scale (mRS). Imaging follow-up was performed at 12 months after surgery to assess the aneurysm occlusion status and the incidence of complications.

All 27 patients successfully underwent stent implantation, with a technical success rate of 100%. Immediate postoperative DSA showed complete occlusion (Raymond-Roy grade Ⅰ) in 25 cases (92.59%) and residual neck (grade Ⅱ) in 2 cases (7.41%). Perioperative complications occurred in 2 patients (7.41%): 1 case (3.70%) of intraoperative aneurysm rerupture and 1 case (3.70%) of postoperative intracranial hemorrhage. Upon discharge, 24 patients (88.89%) showed good neurological function recovery (mRS score 0-2), while 3 patients (11.11%) presented moderate neurological dysfunction (mRS score 3-5). At 3 months after discharge, mRS scores were 0 in 24 patients (88.89%), 1 in 1 patient (3.70%), and 2 in 2 patients (7.41%). At 12 months postoperatively, all patients completed imaging follow-up, showing Raymond-Roy grade Ⅰ in 24 cases (88.89%) and grade Ⅱ in 3 cases (11.11%), with no stent-related complications observed.

Neuroform Atlas stent-assisted embolization for WNIAs demonstrates a high procedural success rate and favorable safety profile.