TY  - JOUR
AU  - Pedro Nogarotto Cembraneli
AU  - Julia Brasileiro de Faria Cavalcante
AU  - Italo Nogarotto Cembraneli
AU  - Renata Brasileiro de Faria Cavalcante
AU  - José Edison da Silva Cavalcante (PhD)
AU  - Rodrigo Correia de Alcântara
AU  - Marcos Daniel Xavier
AU  - Vitor Cesar Machado
AU  - Alessandro Fonseca Cardoso
AU  - Chrystiano Fonseca Cardoso
PY  - 2025
DA  - 2025/04/28
TI  - Proximal Aneurysm of the Anterior Cerebral Artery: Case Report and Literature Review
JO  - Neurology and Neuroscience
VL  - 6
IS  - 3
AB  - Introduction: Aneurysms of the proximal segment (A1) of the anterior cerebral artery (ACA) are rare,
accounting for approximately 1% of intracranial aneurysms. Associated vascular anomalies, such as
fenestration, complicate diagnosis and treatment, requiring careful planning. Case Report: A 51-yearold woman presented with sudden onset headache. Angio-MRI and digital subtraction angiography
revealed a saccular aneurysm measuring 16 x 10 mm in the left A1 segment of the ACA, associated
with a fenestrated artery. Due to the complex anatomy and risk of perforator artery damage, microsurgical clipping via the pterional approach was chosen. The patient had a favorable outcome, with
early discharge and no permanent deficits. Discussion: A1 aneurysms are challenging due to their
proximity to critical structures and anatomical variations. Despite the current trend toward endovascular
approaches, open surgery remains preferable in cases with a high risk of complications. Conclusion:
Treatment of A1 segment aneurysms should be individualized. In complex cases, the microsurgical
approach combined with advanced imaging techniques provides good outcomes and greater safety in
managing these rare lesions.
SN  - 2692-7918
UR  - https://dx.doi.org/10.33425/2692-7918.1085
DO  - 10.33425/2692-7918.1085