Using a covered stent for large cerebral aneurysms treated with stent-assisted coiling

Area of Science:

• Neurosurgery
• Interventional Neuroradiology
• Vascular Surgery

Background:

• Large intracranial aneurysms pose significant treatment challenges.
• Conventional endovascular methods may have limitations for complex cases.

Purpose of the Study:

• To evaluate the efficacy and safety of covered stent implantation for large intracranial aneurysms.
• To assess the outcomes of stent-assisted coiling combined with covered stents.

Main Methods:

• Seven patients with large cerebral aneurysms underwent endovascular reconstruction.
• The procedure involved stent-assisted coiling and deployment of a covered stent.
• In five patients, the covered stent was placed after prior embolization; in two, it was done in a single procedure.

Main Results:

• Angiography confirmed complete aneurysm exclusion and parent artery preservation in all cases.
• No technical adverse events were reported.
• At 1-2 year follow-up, six patients had complete symptom resolution, and one had partial resolution, with no recurrence or stenosis.

Conclusions:

• Endovascular reconstruction using a covered stent and stent-assisted coiling is effective and safe for large intracranial aneurysms.
• This combined approach offers a viable treatment strategy for complex cerebrovascular lesions.