A Giant Stent for Giant Cerebral Aneurysms-The Accero®-Rex-Stent

Hermann Kraehling; Burak Han Akkurt; Mohamed Elsharkawy; Ahmed Ayad; Mostafa Ergawy; Ekin Celik; René Chapot; Wolfram Schwindt; Christian Paul Stracke

doi:10.3390/jcm13020388

A Giant Stent for Giant Cerebral Aneurysms-The Accero^®-Rex-Stent

J Clin Med. 2024 Jan 10;13(2):388. doi: 10.3390/jcm13020388.

Authors

Hermann Kraehling^{1

2}, Burak Han Akkurt¹, Mohamed Elsharkawy^{2

3}, Ahmed Ayad³, Mostafa Ergawy², Ekin Celik⁴, René Chapot³, Wolfram Schwindt², Christian Paul Stracke^{2

5}

Affiliations

¹ University Clinic for Radiology, University of Münster, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany.
² University Clinic for Radiology, Department for Interventional Neuroradiology, University of Münster, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany.
³ Department of Neuroradiology, Alfried-Krupp-Krankenhaus, Alfried-Krupp-Straße 21, 45131 Essen, Germany.
⁴ Department of Radiology and Neuroradiology, Ludmillenstift Hospital, Ludmillenstrasse 4-6, 49716 Meppen, Germany.
⁵ Clinic and Policlinic for Diagnostic and Interventional Neuroradiology, University Hospital Hamburg Eppendorf, Martinistraße 52, 20246 Hamburg, Germany.

Abstract

Objective: Until now, giant intracranial aneurysms (GIAs) have in many cases been a vascular disease that was difficult or impossible to treat, not least due to the lack of availability of a large-format stent. In this multicentre study, we report on the first five clinical applications of the Accero^®-Rex-Stents (Acandis, Pforzheim, Germany) in the successful treatment of fusiform cerebral giant aneurysms.

Material and methods: The Accero^®-Rex-Stents are self-expanding, braided, fully radiopaque Nitinol stents designed for aneurysm treatment. The stent is available in three different sizes (diameter 7-10 mm, length 30-60 mm) and intended for endovascular implantation in vessels with diameters of 5.5-10 mm.

Results: Five patients (all male, age 54.4 ± 8.1 years) with large fusiform aneurysms of the posterior circulation were treated endovascularly using the Accero^®-Rex-Stents. There were no technical complications. One major ischemic complication occurred. A significant remodeling and reduction in the size of the stent-covered aneurysms was already seen in the short-term post-interventional course.

Conclusions: The Accero^®-Rex-Stents were successfully and safely implanted in all five patients with fusiform giant aneurysms, showing technical feasibility with promising initial results and significant aneurysm size reduction in already available follow-up imaging.

Key point: With the Accero-Rex-Stents, a new device is available that offers another treatment option for rare cerebral fusiform giant aneurysms with very large parent vessels.

Keywords: coated stents; endovascular treatment; giant intracranial aneurysm; intracranial stenting; neuroradiological intervention.

Grants and funding

The authors declare that no funds, grants or other support were received during the preparation of this manuscript. No funding was received to assist with the preparation of this manuscript. No funding was received for conducting this study.