Basilar Top Aneurysm

Aneurysms
Aneurysms of the basilar trunk artery are extremely rare, accounting for only 2.1 percent of all intracranial aneurysms. They are most commonly diagnosed in persons over 60, have a slight male predominance, and are linked to high morbidity and mortality.

A type of posterior circulation cerebral aneurysm that accounts for just a small percentage of all aneurysms, with the majority occurring in the anterior circulation. Cerebral aneurysms are commonly found near bifurcations, such as this one, where the posterior cerebral artery is immediately posterior.  

Ruptured basilar tip aneurysms can cause deadly subarachnoid hemorrhage (SAH), with a fatality rate of up to 23%.

A big basilar artery aneurysm presenting as a stroke is extremely uncommon. The consequences and prognostic implications of this disorder necessitate examination and recognition.  Fusiform aneurysms are most common in severely atherosclerotic basilar arteries, and atherosclerotic disease is most often the cause of mortality.

 

A ruptured aneurysm can cause a strong headache as well as the following indications and symptoms:

· Nausea and vomiting.

· Stiff neck.

· Blurred or double vision.

· Sensitivity to light.

· Seizure.

· A drooping eyelid.

· Loss of consciousness.

· Confusion.

 

Berry (saccular), fusiform, and mycotic cerebral aneurysms are the three forms. The most common, "berry aneurysm," affects adults more frequently. It can be a few millimeters long or more than two centimeters long. Aneurysms in your family may raise your risk. Only half-dome–shaped aneurysms from nonbranching locations of the dorsal ICA are commonly referred to as blister aneurysms. The technical complexity of coiling and the reduced rate of retreatment with flow diversion make it an appealing choice, but this is mitigated by FDs' greater rate of thromboembolic events and the risk of hemorrhagic complications with dual antiplatelet therapy. Finally, initiating dual antiplatelet therapy in the context of flow diversion or stent placement may complicate the treatment of patients with aneurysmal SAH from blister aneurysms, emphasising the importance of taking into account patients' needs for other procedures such as gastrostomy tube placement or ventriculoperitoneal shunting in this population.

Blister aneurysms are technically difficult to treat due to their fragility. Clipping alone can be effective in some cases, but recurrent rupture or artery tearing needs the use of secondary or primary procedures. 

From coil embolization to flow diversion with numerous stents to the use of flow diverting stents, the treatment of blister and dissecting aneurysms has evolved. The results of endovascular vessel repair utilizing current flow diverting stents inspire us to treat this aneurysm type efficiently. As a result, we urge that vessel reconstructive techniques be used instead of parent vessel occlusion.

Exclusion Criteria:- A1 aneurysms studies with no clear identification of those located in the proximal A1 segment, and studies using other endovascular treatment techniques in the same scenario of flow diversion were all excluded.

Flow Reversal:- For the treatment of blister aneurysms, flow-diverting devices (FDs) such as the Pipeline embolization device (PED; Medtronic Neurovascular) and Silk (Balt Extrusion) are gaining popularity and have the potential to become the standard of care. Given that the aneurysm dome is not immediately secured after FD insertion, blood pressure management in the acute condition is a critical consideration. As a result, the risks of hyperdynamic therapy in individuals with vasospasm whose aneurysms were treated with FDs.

The option to utilize aspirin alone and the related increased safety profile of aspirin alone compared to dual antiplatelet therapy gives a substantial benefit over earlier generations of flow-diversion technology in patients with ruptured aneurysms. 

Location: India

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