Written by Ketan Patel
Spoon Feed
This pooled appraisal supports the potential efficacy and expanded role of endovascular therapy (EVT) in a broader stroke population than once thought, particularly those patients with large core infarcts across a wider treatment window.
Core values – expanding the frontiers of thrombectomy
Researchers are still exploring EVT efficacy beyond the current standards recommended by most clinical guidelines. In particular, EVT utility in patients with a large ischemic tissue burden is not well characterized, and implementation in these patients is variable in clinical application.
In this critical appraisal of six randomized controlled trials, authors assessed the efficacy and safety of mechanical thrombectomy (MT) in patients with large ischemic strokes (ASPECTS 3–5). The studies consistently demonstrated improved functional outcomes with MT (e.g., pooled mRS 0–3: 45.6% MT vs. 31.4% control; RR 1.46), despite increased symptomatic intracranial hemorrhage. Limitations include heterogeneity in imaging criteria, treatment windows, and stroke severity. Overall, MT offers significant functional benefit in selected patients with large infarcts, warranting individualized clinical consideration.
While immediate implementation of these findings are difficult to generalize in practice, this article does support continued exploration and study of EVT in broader patient populations and subgroups. Large core infarcts, by nature, have a very poor prognosis, and any therapy that could limit the debility from these devastating strokes should be explored as an option.
How does this change my practice?
I am fortunate to work in a comprehensive stroke center that can offer EVT therapy in patients presenting with large vessel occlusions and the most debilitating strokes. While the application of this study is hard to generalize into my current clinical practice, it does allow me to better discuss the potential utility of EVT therapy even in patients found to have large core infarcts on their imaging upon presentation. Currently, this will be done on a case-by-case basis with consultation input until future studies better determine standardized approaches in patient selection, as well as which subgroups would benefit most from intervention.
Source
Mechanical Thrombectomy for Large Ischemic Stroke: A Critical Appraisal of Evidence From 6 Randomized Controlled Trials. Stroke. 2025 Jul;56(7):1917-1927. doi: 10.1161/STROKEAHA.125.050402. Epub 2025 May 20. PMID: 40391430
