Overlapping Stents for Dissecting Intracranial Aneurysms: A Systematic Review With Single-Arm Meta-Analysis

Overlapping stent-assisted reconstruction achieves high aneurysm occlusion and favorable neurological outcomes with low complication rates, supporting its role as a safe and effective reconstructive option for DIAs.Clinical ImpactThe findings support overlapping stent-assisted reconstruction as a viable reconstructive strategy for dissecting intracranial aneurysms, particularly in anatomically complex or rupture-prone lesions where parent artery preservation is critical. High rates of technical success and favorable functional outcomes, coupled with low complication rates, suggest that this approach may expand the therapeutic armamentarium beyond conventional deconstructive techniques. For clinicians, it provides a feasible alternative in scenarios where flow diversion or vessel sacrifice is contraindicated. The innovation lies in leveraging standard stents to achieve flow-modulating effects comparable to dedicated devices, enabling tailored, cost-effective, and anatomically adaptable endovascular reconstruction.