Successful Clipping of a Giant Anterior Inferior Cerebellar Artery Aneurysm with Combined Transpetrosal Approach

Abstract EN

Background.

The anterior inferior cerebellar artery (AICA) aneurysms are rare lesions whose treatment can be challenging.

There are only a few previous reports of surgical treatment for such lesions.

Objectives.

We present a case of a basilar-AICA aneurysm undergoing surgery with the combined transpetrosal approach.

Case Description.

A 58-year-old female patient presented clinical signs including headache, diplopia, and right hemiparesis.

The radiological imaging showed a basilar-AICA aneurysm measuring 25 × 19 mm.

The patient was operated via left combined transpetrosal approach.

The outcome was graded mRankin 1.

Follow-up computerized tomographic angiography showed no aneurysmal residual and total preservation of basilar artery.

Discussions.

Surgical indication’s purposes were aneurysmal elimination and reduction of mass effect.

Combined transpetrosal approach: proximal segment control and enough space for clipping manipulation.

Clipping techniques: Temporary clip for aneurysmal collapsing, “orienting clip”.

Conclusion.

Giant basilar-AICA aneurysm is very rare lesion.

Combined transpetrosal approach is appropriate for surgical clipping.

Good surgical outcome is achieved with complete elimination of aneurysm.