Endovascular treatment modalities for basilar artery fenestration aneurysms:Experience of two centers and literature review.

Korkmaz, Mehmet; Çİnar, Celal; Nas, Ömer Fatİh; Hakyemez, Bahattİn; Oran, İsmaİl

BACKGROUND/AIM The aim of this study is to present our experience on various endovascular treatment modalities of basilar fenestration aneurysms and to review our findings along with the literature data. MATERIALS AND METHODS A total of 24 patients with 26 BAF aneurysms who have admitted to our clinics were endovascularly treated, and two centers were used for this purpose. All patients were evaluated with computed tomography (CT), CT angiography (CTA) and digital subtraction angio graphy (DSA) before the procedure. RESULTS Whole aneurysms were successfully occluded with 100 per cent rate of technical success. Procedure-related complications were encountered in two patients. Our comprehensive literature research has revealed that most of the papers related with the topic were case reports. In the literature, it has been reported from 46 studies that 101 patients with 113 BAF aneurysms were endovascularly treated between years 1993 and 2019. The overall positive outcome, clinical success, and the complication rate values of the studies in the literature were 97, 91 and 8.8 percent, respectively, whereas these values were 100%, 92% and 7.6% in our study. CONCLUSIONS Despite the low number of cases in the current study, it is by far the most comprehensive series in the literature to date. Our results suggest that BAF aneurysms can be successfully and safely treated with different endovascular techniques, with the gradually increased use of stents in recent years.