INTRODUCTION: Anterior communicating artery aneurysms (ACoAAs) are the most frequent intracranial aneurysms treated at neurosurgical departments with a vascular program. MATERIAL AND METHODS: We reviewed patients with ACoAAs in a single institution over ten years (2008-2017). The focus was on the final outcome; complications, age, and clinical condition with respect to modalities were analyzed. RESULTS: A total of 198 patients treated during this period was included in the study: 176 patients had a ruptured ACoAA and 22 had an unruptured ACoAA. Then, 127 (71%) were treated surgically and 51 (29%) by endovascular means. Out of the whole series, a good recovery occurred in 123 patients (62%), moderate disability in 11 (5.5%), severe disability in 19 (10%), vegetative state in 11 (5.5%), and death in 34 (17%). In the 157 patients (72.5%) with a subarachnoid hemorrhage (SAH), both modalities had a favorable outcome: 27.5% had an unfavorable outcome, 12% had complications in surgery versus 17.6% during endovascular treatment. No statistical difference in outcome, complications, and age was noted between modalities. Surgical treatment was more frequently adopted for patients in a better clinical condition (p ≤ 0.05). CONCLUSION: More than two thirds of the patients (72.5%) reached a favorable outcome. There was no difference in age between the treatment modalities. Risks of complications are present and specific for both modalities.

Department of Neurosurgery Faculty of Medicine Masaryk University Brno 62500 Brno Czech Republic Department of Neurosurgery University Hospital Brno 62500 Brno Czech Republic

Department of Neurosurgery Faculty of Medicine Masaryk University Brno 62500 Brno Czech Republic Department of Neurosurgery University Hospital Brno 62500 Brno Czech Republic Department of Pathophysiology Faculty of Medicine Masaryk University Brno 62500 Brno Czech Republic

Department of Radiology and Nuclear Medicine Faculty of Medicine Masaryk University Brno 62500 Brno Czech Republic Department of Radiology and Nuclear Medicine University Hospital Brno 62500 Brno Czech Republic

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