H.Alvin Chen, MD MHSc
@HAlvinChenNeuro
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Neurologist and Researcher via NIH/Georgetown Neurology Residency ‘25, Duke MHSc ‘25, UMaryland MD ‘21 | Stroke/Endovascular Fellow @ UMaryland ‘25-‘28.
Joined July 2022
@HAlvinChenNeuro @marcocolasurdo "This study provides high-level evidence that, among patients with nonacute SDH, MMAE is an effective adjunct to conventional management to prevent SDH treatment failure."
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"Middle Meningeal Artery Embolization for Nonacute Subdural Hematoma: A Meta-Analysis of Large Randomized Controlled Trials" https://t.co/cDh3wjOESM
@HAlvinChenNeuro; @marcocolasurdo
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RCTs have suggested that MMA embolization in addition to surgery reduces subdural hematoma recurrence, but trials were heterogeneous and vulnerable to open label bias Does MMA embolization work outside of trials? Our analysis of 30k+ patients says yes! https://t.co/2JnHFYMhKM
jnis.bmj.com
Background Middle meningeal artery embolization (MMAE) is a promising treatment for non-acute subdural hematoma (NASDH), but trial evidence is limited by heterogeneity and open label design bias....
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#STROKE: A Nationwide Database study (>1.6M pts) shows that non-arteritic isolated RAO carried a much lower risk of recurrent cerebral infarction vs transient ischemic attack/minor stroke. #AHAJournals
https://t.co/PDQEdUn3n2
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For patients with chronic subdural hematoma, what's the best time for MMAE? 🚨Our new paper shows: Same day MMAE+surgery = 👉shorter length of stay 👉lower $$$ Don't wait to treat! @dgandhimd @UMDNeurosurgery @marcocolasurdo @dhairyalakhani
https://t.co/RwOG4KGkCY
ajnr.org
BACKGROUND AND PURPOSE: Recent randomized trials have suggested that middle meningeal artery embolization (MMAE) is an effective treatment for preventing the recurrence of subacute and chronic...
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🚨New paper! 🚨 Using 2 large databases, we found that anxiety and mood disorders🔼rates of flow diversion for unruptured aneurysms, and 🔽post-FD outcomes. Need better multidisciplinary care! https://t.co/gxQwV0MaBz
@dgandhimd @dhairyalakhani @marcocolasurdo @UMDNeurosurgery
jnis.bmj.com
Background Anxiety and mood disorders (AMD) may impact the management and outcomes of patients with unruptured intracranial aneurysms (UIAs). This study investigates AMD’s associations with utiliza...
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Do advanced imaging modalities (CT perfusion or MR) improve patient selection for basilar stroke thrombectomy? Our most recent analysis of the multi center STAR registry says No! https://t.co/Ty2SDNEcEb
@PeterKa80460001
@marcocolasurdo
@alex_spiotta
journals.sagepub.com
Introduction: Endovascular thrombectomy (EVT) is an effective treatment for basilar artery occlusion (BAO) stroke in select patients. While there is a growing b...
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New manuscript! Isolated retinal artery occlusions have low risk of subsequent stroke, and they are more likely in situ events as opposed to embolic phenomena. https://t.co/akALMQr2CO
@marcocolasurdo
@JimSiegler
@NguyenThanhMD
@dgandhimd
@umarylandneuro
@UMDNeurosurgery
ahajournals.org
BACKGROUND: Retinal artery occlusion (RAO) is a form of ischemic stroke per the American Heart Association, yet high-level evidence guiding management and prognostication is limited. The risk of...
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Ongoing controversy: Coils vs. other methods of MMA embolization for cSDH, which one is more safe and effective? Fecker et al. provide a retrospective review of 168 patients, 52% of whom were treated with coils and the balance with liquid embolics/particles. In their follow-up,
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Pleased to have our Viewpoint article in @JAMANeuro on distal and medium vessel occlusion strokes. Strong work by @HAlvinChenNeuro and coauthors @ESOstroke @WorldStrokeOrg
https://t.co/wblCEkWIzg
jamanetwork.com
This Viewpoint reviews lessons learned from recent studies of thrombectomy for medium and distal vessel occlusion, and provides guidance for the path forward.
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Dr. Matthew McIntyre shows standalone MMA embolization shows decreased long-term mortality in cSDH patients #snis2025 @SNISInfo @esmintsociety @cvsection @fcalbuquerque51 @dr_mchen @DanniDiestro @MattAmansMD @ducruetaf @MattFusco_MD @DrAltschul @cruzcerebri @niko_mou
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Nice review of the role of MMA embolization in the management of chronic subdural hematoma https://t.co/a9gVZ2L0vg
neurology.org
Purpose of ReviewWhile chronic subdural hematoma (cSDH) has been considered a neurosurgical disease, conventional management with surgical evacuation has been associated with high rates of disease...
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Should thrombolysis be given for acute stroke patients with cerebral amyloid angiopathy? Maybe! Benefits seem to outweigh hemorrhage risks… https://t.co/XokgRLpjWs
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#STROKE: Standalone middle meningeal artery embolization may be beneficial for nonsurgical nontraumatic patients with subdural hematoma — with reduction of long-term risk for all-cause mortality. #AHAJournals
https://t.co/JoUJ3xhWNm
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Endovascular Stenting for Acute Ischemic Stroke Due to Cervical Artery Dissection: Nationwide Study of Stroke Recurrence | Stroke: Vascular and Interventional Neurology https://t.co/fE72V0Y2Tx
@svinsociety @SVINJournal @StrokeAHA_ASA
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Middle meningeal artery embolization for non-acute subdural hematoma: a meta-analysis of large randomized controlled trials
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#OnlineFirst: Implications of the glymphatic system in the pathogenesis of normal pressure hydrocephalus: an illustrated scoping review. https://t.co/m7gKulh7ir.
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Standalone Middle Meningeal Artery Embolization Versus Conservative Management for Nontraumatic Subdural Hematoma | Stroke https://t.co/pyAkfy6AHk
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