Ruptured Bilobed Basilar Artery Fenestration Aneurysm Treated with a WEB Device

Area of Science:

• Endovascular neurosurgery
• Cerebrovascular disease management
• Neurosurgical techniques

Background:

• Blister-like aneurysms (BLAs) at the basilar artery (BA) fenestration are rare and challenging cerebrovascular lesions.
• Ruptured BLAs can lead to significant subarachnoid hemorrhage (SAH), posing a high risk of morbidity and mortality.
• Traditional treatment options for these aneurysms have limitations.

Purpose of the Study:

• To describe the endovascular technique using a Woven Endo Bridge (WEB) device for treating a ruptured bilobed BLA.
• To present a case of successful WEB device deployment in a complex basilar artery fenestration aneurysm.
• To provide an overview of treatment modalities for ruptured BLAs.

Main Methods:

• A case presentation of a 66-year-old female with SAH due to a ruptured BA fenestration BLA.
• Diagnostic imaging including unenhanced CT, CT angiography, and conventional angiography.
• Endovascular treatment utilizing a Woven Endo Bridge (WEB) device.

Main Results:

• Successful deployment of the WEB device to treat the ruptured bilobed BLA.
• Resolution of the aneurysm and cessation of hemorrhage.
• The patient's clinical outcome was favorable following the endovascular intervention.

Conclusions:

• The Woven Endo Bridge (WEB) device is a viable and effective treatment option for ruptured blister-like aneurysms at the basilar artery fenestration.
• Endovascular treatment with the WEB device offers a minimally invasive approach for complex cerebrovascular lesions.
• This technique represents an important advancement in the management of challenging aneurysms.