Evaluation of the Accero Stent for Stent-Assisted Coiling of Unruptured Wide-Necked Intracranial Aneurysm Treatment with Short-Term Follow-Up

Abstract

Background: Stent-assisted coiling is an effective method of treating intracranial aneurysms. The aim of the study was to assess the safety and efficacy of the new Accero stent for the treatment of intracranial aneurysms. Materials and Methods: It was a retrospective, single-center study. Eighteen unruptured intracranial aneurysms were treated using the stent-assisted coiling method with the Accero stent. Patient demographics, aneurysm characteristics, procedural parameters, grade of occlusion, complications, and clinical results were analyzed. Follow-up magnetic resonance (MR) was performed 6 months after intervention. Results: Seventeen patients with 18 incidental unruptured aneurysms were electively treated with coiling and the Accero stent. The aneurysms were located on internal carotid artery (ICA), middle cerebral artery (MCA) and basilar artery (BA). All stents were deployed successfully. Immediate complete occlusion rate Raymond-Roy occlusion classification (RROC) class I was achieved in 13 cases and class II in 4 cases. Complications occurred in 2/17 treatments and included guidewire stent perforation with subarachnoid hemorrhage (SAH) and stent deformation. Vascular spasm in the subarachnoid hemorrhage (SAH) patient subsided before discharge. Ninety days after intervention, the modified Rankin Scale (mRS) value was 0. RROC class I was observed in 88.23% of cases in follow-up. Conclusion: The Accero stent provides excellent support for coil mass. It constitutes an efficacious device with good initial occlusion rate for treating wide-necked unruptured intracranial aneurysms.

Initial Experience with LVIS EVO Stents for the Treatment of Intracranial Aneurysms

“…The LVIS EVO device is a self-expanding, closed-cell stent, with substantial differences to the LVIS and LVIS jr. stent (Low-profile Visualized Intraluminal Support). The LVIS EVO has DFT, which makes it easy to visualize and this, in turn, facilitates stent deployment, which is similar to different Leo stents (Balt, Montmorence, France) [14,21] and Accero (Accandis, Pforzheim, Germany) [22]. Another advantage of DFT is the influence on geometry, formability and opening ability of the stents.…”

Endovascular Treatment of Ruptured Blood Blister-like Aneurysms Using the LVIS EVO Stents

“…LVIS EVO is a novel, self-expandable braided stent with drawn filled tube technology (DFT), which improves the visibility of the wire and facilitates stent deployment. In terms of its function and flexibility, it is similar to Accero (Acandis, Pforzheim, Germany) [22] and Leo stents (Balt, Montmorence, France) [23]. LVIS EVO appears to be more flexible and very well adapted to vascular anatomy.…”

pCONUS 2 and pCONUS 2-HPC for the treatment of wide-necked intracranial aneurysms: Periprocedural, 6-month, and early 2-year follow-up outcomes

“…Early data regarding these devices is promising though complication rates remain similar to previous devices. 15,16…”

“…Early data regarding these devices is promising though complication rates remain similar to previous devices. 15,16 Intrasaccular flow disruptor devices, such as the Woven EndoBridge device (Sequent Medical, USA) and Cerus Contour (Cerus Endovascular, USA), have established themselves as a safe alternative approach for wide-necked aneurysms in recent years, and do not necessarily require a dual antiplatelet regimen. 17,18 However, the largest WEB device is 11 x 9 mm wide and so the device is only suitable to treat aneurysms up to 10 mm unless using a specialised corking technique to coil distally to the WEB device.…”