Author:
Muhammad Sajjad,Hafez Ahmad,Kaukovalta Hanna,Rezai Jahromi Behnam,Kivisaari Riku,Hänggi Daniel,Niemelä Mika
Abstract
IntroductionThe aneurysms of the anterior inferior cerebellar artery (AICA) are rare lesions of the posterior circulation and to treat them is challenging. We aim to present anatomical and morphological characteristics of AICA aneurysms in a series of 15 patients.MethodThe DSA and CT angiography images of AICA aneurysms in 15 consecutive patients were analyzed retrospectively. Different anatomical characteristics were quantified, including morphology, location, width, neck width, length, bottleneck factor, and aspect ratio.ResultsEighty percent of the patients were females. The age was 52.4 ± 9.6 (mean ± SD) years. 11 patients were smokers. Ten patients had a saccular aneurysm and five patients had a fusiform aneurysm. Aneurysm in 10 patients were located in the proximal segment, in three patients in the meatal segment, and in two patients in the distal segment. Ten out of 15 patients presented with a ruptured aneurysm. The size of AICA aneurysms was 14.8 ± 18.9 mm (mean ± SD). The aspect ratio was 0.92 ± 0.47 (mean ± SD) and bottleneck factor was 1.66 ± 1.65 (mean ± SD).ConclusionAICA aneurysms are rare lesions of posterior circulation predominantly found in females, present predominantly with subarachnoid hemorrhage, and are mostly large in size.
Reference67 articles.
1. Anterior inferior cerebellar artery aneurysms: six cases and a review of the literature;Li;Neurosurg Rev,2012
2. The current role of microsurgery for posterior circulation aneurysms: a selective approach in the endovascular era;Sanai;Neurosurgery,2008
3. Aneurysm of the anterior inferior cerebellar artery: case report;Adorno;Arq Neuropsiquiatr,2002
4. Fusiforme aneurysm of the anterior inferior cerebellar artery and arteriovenous malformation fed by the same vessel;Aguiar;Medicina (B Aires),2012
5. Multiple anterior inferior cerebellar artery aneurysms associated with an arteriovenous malformation: case report;Akyuz;Surg Neurol,2005