Impact of Endoluminal Flow Diverter Number on Aneurysm Treatment Outcomes: A Multicenter Study

Background The purpose of this study is to evaluate the impact multiple overlapping flow‐diverting stents have on aneurysm occlusion rates and iatrogenic complications relative single stents. Methods A retrospective review a multicenter database from 2012 2020 was performed identify saccular aneurysms treated initially with ≥12‐month angiographic clinical follow‐up. Aneurysm as function stent number served primary outcome measure serving secondary measure. Results total 250 patients were Pipeline embolization device (PED), 48 PEDs. There no significant difference in size, morphology, or dual‐antiplatelet therapy regimen used between groups. (single, 83.6%, versus multiple, 83.4%; P =0.65) retreatment 8.0%, 10.4%; =0.58) procedure‐related groups 4.2%; =0.42), 0.8% PED 2.1% PEDs experiencing ischemic stroke. Conclusions overall nor are there differences complications. Single flow diversion may be preferred whenever possible, constructs reserved for extenuating circumstances encountered giant aneurysms.