Aneurisma da artéria cerebelar ântero-inferior: relato de caso

Adorno, Juan Oscar Alarcón; Andrade, Guilherme Cabral de

doi:10.1590/s0004-282x2002000600026

Cited by 5 publications

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References 13 publications

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“… 1 2 Except a few larger case series, 3 only case reports with a single or a few patients have been reported. 1 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 Drake et al 64 reported a larger series of AICA aneurysms. However, they also included aneurysms originating from the basilar trunk near the origin of AICA.…”

Section: Introductionmentioning

confidence: 99%

Treatment and Outcome of Anterior Inferior Cerebellar Artery (AICA) Aneurysms: Helsinki Series of 15 Consecutive Patients

et al. 2023

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Objective Anterior inferior cerebellar artery (AICA) aneurysms are rare posterior circulation lesions that are challenging to treat. This article presents the treatment and clinical outcome of AICA aneurysms in an unselected cohort of patients. Methods A retrospective analysis of patient record files, digital subtraction angiography, and computed tomography angiography images of 15 consecutive patients harboring AICA aneurysms treated between 1968 and 2017. Results Of the 15 AICA aneurysm patients reviewed, 12 (80%) were females. Twenty percent had intracerebral hemorrhage and 40% presented with intraventricular hemorrhage. Eleven out of 15 (73%) patients presented with subarachnoid hemorrhage (SAH); 82% of SAH patients had a good-grade SAH (Hunt and Hess grade 1–3). Eleven patients (73%) were treated surgically, three (20%) were treated conservatively, and one (7%) had coil embolization. In 27% of patients, a subtemporal approach with anterior petrosectomy was performed. A retrosigmoid approach was used in the remaining 73%. In 18% of the patients, a parent vessel occlusion was necessary to occlude the aneurysm. Five out of 11 (47%) of the patients developed postoperative cranial nerve deficits. Twenty-seven percent developed shunt-dependent hydrocephalus. All patients who presented with an unruptured AICA aneurysm had good clinical outcome (modified Rankin scale [mRS] 1–2). In patients with SAH, 82% achieved good clinical outcome and 18% had poor clinical outcome (mRS 3–6) after 1 year. Conclusion Surgical treatment of AICA aneurysms has a high rate of cranial nerve deficits but most of patients have a good long-term clinical outcome.

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Section: Introductionmentioning

confidence: 99%

Treatment and Outcome of Anterior Inferior Cerebellar Artery (AICA) Aneurysms: Helsinki Series of 15 Consecutive Patients

et al. 2023

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“…The aneurysm of the anterior inferior cerebellar artery (AICA) are very rare and they account for <1% of all intracranial aneurysms ( 1 , 2 ). The reported case reports of AICA aneurysms have a single or a few patients ( 1 , 3 – 62 ), except for a few larger case series ( 63 ), including a large series of AICA aneurysms reported by Drake and colleagues ( 64 ). However, in this series, the aneurysms originating from the basilar trunk that is near the origin of AICA were included.…”

Section: Introductionmentioning

confidence: 99%

Anterior inferior cerebellar artery (AICA) aneurysms: a radiological study of 15 consecutive patients

et al. 2023

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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.

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Endovascular Approach of a Proximal Anterior Inferior Cerebellar Artery Aneurysm: Case Report

2016

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Anterior inferior cerebellar artery (AICA) aneurysms are extremely rare, accounting for only 0.75% of all intracranial aneurysms. The average age of patients suffering from those aneurysms found in the literature was 44 years, with no significant difference between the sexes. These aneurysms can manifest clinically through expansive symptoms in cerebellopontine angle or through signs and symptoms of subarachnoid hemorrhage, such as nausea, vomiting, headache, nystagmus and paresis. The gold standard exam for diagnosis is cerebral angiography. The treatment of these lesions is controversial. The main difficulty of the surgical treatment of these aneurysms is the location of the AICA, which lies close to critical neurovascular structures. In this article, we describe a proximal AICA aneurysm embolization without occlusion of the parent artery, with excellent results in the postoperative period. Palavras-chave► artéria cerebelar anterior inferior ► procedimentos endovasculares ► aneurisma intracraniano ResumoOs aneurismas da artéria cerebelar anterior inferior (AICA) são extremamente raros, representando apenas 0,75% de todos os aneurismas intracranianos. A idade média de acometimento encontrada na literatura é de 44 anos, não havendo diferença significativa entre os sexos. A etiologia do aneurisma da AICA é controversa, porém, acreditase haver semelhanças com aneurismas em geral. Clinicamente, esses aneurismas podem manifestar sintomas expansivos no ângulo ponto-cerebelar, ou sinais e sintomas de hemorragia subaracnóidea (HSA), como náuseas, vômitos, cefaleia, nistagmo. O exame padrão-ouro para o diagnóstico é a angiografia cerebral. A maior controvérsia dos aneurismas da AICA é o tratamento. A principal dificuldade no tratamento cirúrgico desses aneurismas é a localização da AICA, perto de estruturas neurovasculares críticas. Neste artigo, descrevemos a embolização de um aneurisma proximal da AICA sem oclusão da artéria portadora, com excelentes resultados no pós-operatório.

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Aneurisma da artéria cerebelar ântero-inferior: relato de caso

Cited by 5 publications

References 13 publications

Treatment and Outcome of Anterior Inferior Cerebellar Artery (AICA) Aneurysms: Helsinki Series of 15 Consecutive Patients

Treatment and Outcome of Anterior Inferior Cerebellar Artery (AICA) Aneurysms: Helsinki Series of 15 Consecutive Patients

Anterior inferior cerebellar artery (AICA) aneurysms: a radiological study of 15 consecutive patients

Endovascular Approach of a Proximal Anterior Inferior Cerebellar Artery Aneurysm: Case Report

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