Endovascular therapy versus medical management in isolated anterior cerebral artery acute ischemic stroke: a multinational multicenter propensity score-weighted study
- PMID: 39613322
- PMCID: PMC12129695
- DOI: 10.1136/jnis-2024-022467
Endovascular therapy versus medical management in isolated anterior cerebral artery acute ischemic stroke: a multinational multicenter propensity score-weighted study
Abstract
Background: Isolated anterior cerebral artery occlusions (ACAo) in patients with acute ischemic stroke present significant challenges due to their rarity. The efficacy and safety of endovascular therapy (EVT) in comparison with best medical therapy (BMT) for ACAo remains unclear. This study aimed to assess the outcomes of these treatments.
Methods: This multinational, multicenter study analyzed data from the MAD-MT registry. Data were collected retrospectively from 37 sites across North America, Asia, and Europe. Inverse probability of treatment weighting (IPTW) was applied to balance confounding variables. The primary outcome was functional independence (modified Rankin Scale (mRS) scores of 0-2) at 90 days. Secondary outcomes included excellent outcomes (mRS 0-1), mortality at 90 days, and NIH Stroke Scale (NIHSS) score on day 1 post treatment.
Results: Of the 108 patients, 36 received BMT and 72 underwent EVT. The median age was 75 years, and 56% were male. At 90 days, 40% of patients achieved mRS 0-2, with no significant difference between EVT and BMT (38% vs 45%, p=0.46). Procedural success (mTICI 2b-3) was 91% in the EVT group, with a sICH rate of 2.9%. IPTW-adjusted analysis showed no significant difference between EVT and BMT for functional independence (OR 1.17, 95% CI 0.23 to 6.02, p=0.85), mortality (25% vs 21%, p=0.71) or day 1 NIHSS scores (Beta 2.2, 95% CI -0.51 to 4.8, p=0.11).
Conclusions: EVT showed high procedural success but did not significantly improve functional outcomes or mortality compared with BMT in patients with ACAo. Further randomized trials are needed to clarify EVT's role in ACAo.
Keywords: Stroke.
© Author(s) (or their employer(s)) 2025. No commercial re-use. See rights and permissions. Published by BMJ Group.
Conflict of interest statement
Competing interests: RWR serves on a DSMB for a trial sponsored by Rapid Medical, serves as site PI for studies sponsored by Penumbra and Microvention, and receives stroke research grant funding from the National Institutes of Health, Society of Vascular and Interventional Neurology, and Heitman Stroke Foundation. AG reports consultancy for Rapid Medical and Phenox, not directly related to the present work. FC reports conflicts of interest with Medtronic, Balt Extrusion (consultant), ClinSearch (core lab), Penumbra, Stryker (payment for reading) and Artedrone (Board); all not directly related to the present work. NH received support from NINDS NS131756, NINR NR020231, and NINDS NS113844 during the conduct of the study. All unrelated to the present work. DSL is consultant as Imaging Core Lab to Cerenovus, Genentech, Medtronic, Stryker, Rapid Medical. LLLY reports advisory work for AstraZeneca, substantial support from NMRC Singapore and is a medical advisor for See-mode, Cortiro and Sunbird Bio, with equity in Ceroflo. All unrelated to the present work. CJG reports a proctoring agreement with Medtronic and research funding by Penumbra. GM reports conflicts of interest with Microvention Europe, Stryker Neurovascular, Balt, Sim and Cure (consulting), Medtronic, Johnson & Johnson, Penumbra, Bracco, and Phenox (paid lectures), all not directly related to the present work. ASP is a consultant for Medtronic Neurovascular, Stryker Neurovascular, Balt, Q’Apel Medical, Cerenovus, Microvention, Imperative Care, Agile, Merit, CereVasc and Arsenal Medical, he received research grants from NIH, Microvention, Cerenovus, Medtronic Neurovascular and Stryker Neurovascular, and holds stocks in InNeuroCo, Agile, Perfuze, Galaxy and NTI. Dr Tjoumakaris is a consultant for Medtronic and Microvention (funds paid to institution, not personally). PJ is a consultant for Medtronic, Microvention and Cerus. BP reports consultancy Microvention, Stryker, Q’apel, and Nuvascular, all not directly related to the present work. JES has served as a consultant for AstraZeneca, and has received funding from the National Institutes of Health (R61NS135583), Viz.ai, Philips, and Medtronic. TNN reports Associate Editor of Stroke; advisory for Aruna Bio, Brainomix.
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