Fig 1.
Flowchart of patient enrollment.
Fig 2.
Intraoperative angiograms during RS deployment.
The angiogram shows occlusion of the left M2 superior branch (A). The micro-angiogram visualizes the peripheral arterial flows after passing the occlusion site (B). Despite several attempts at stent deploying and retrieving (C), failed thrombectomy of TICI 0 is observed (D). Finally, the RS is permanently deployed (E), and recanalization of the superior M2 is shown after 15 minutes in an angiogram (F). RS, rescue stent; TICI, thrombolysis in cerebral ischemia.
Fig 3.
Radiologic images of a patient before and after RS deployment.
Before IAT, diffusion-perfusion mismatch was identified by comparing the DWI to CTP images (A). Three months after the procedure, recanalization of M2 was noted on CTA. RS, rescue stent; IAT, intra-arterial thrombectomy; DWI, diffusion-weighted image; CTP, perfusion computed tomography; CTA, computed tomographic angiography.
Table 1.
Results of comparative analysis between the rescue stent and no-stent groups.
Table 2.
Results of univariate and multivariate analyses for identifying factors associated with good functional outcomes (3-month mRS 0–2).
Table 3.
Results of univariate and multivariate analyses for identifying factors associated with recanalization.