Endovascular treatment of intracranial aneurysms with silk vista baby flow diverter: A systematic review and meta-analysis.

Abstract

BackgroundThe Silk Vista Baby (SVB) flow diverter (FD) is a stent designed for small vessels ranging from 1.5 to 3.5 mm. It is the only FD deliverable through a 0.017-inch microcatheter. This systematic review and meta-analysis aimed to assess the SVB utilization in intracranial aneurysms (IAs).MethodsFour electronic databases, PubMed, Scopus, Embase, and Web of Science, were searched from inception to November 5^th, 2024.ResultsTen studies with 359 patients with 373 IAs were included. Our results revealed a pooled complete occlusion rate of 65% (95%CI: 43%-83%), a favorable outcome rate of 94% (95%CI: 83%-100%), and a morbidity rate of 4% (95%CI: 0%-11%). Our meta-analysis revealed a pooled in-stent thrombosis rate of 2% (95%CI: 1%-5%), side branch occlusion rate of 2% (95%CI: 0%-3%), intracerebral hemorrhage (ICH) rate of 2% (95%CI: 1%-4%), and device shortening rate of 4% (95%CI: 3%-6%). The subgroup analysis showed that the complete occlusion rate (≤6: 84% [95%CI: 49%-100%] vs >6: 58% [95%CI: 41%-73%], p < .001) was higher in studies with 6-month or lower follow-up duration, and the favorable outcome rate was higher in those with greater than 6-month duration (≤6: 84% [95%CI: 73%-93%] vs >6: 97% [95%CI: 82%-100%], p < .001).ConclusionSVB is an efficient and safe therapeutic option for managing IAs. We demonstrated that it is associated with promising clinical and radiological outcomes and low rates of complications.