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| http://dx.doi.org/10.22122/arya.v17i0.2233 | DOI Listing |
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Combined collaterals and hemodynamic features to predict the prognosis in acute ischemic stroke patients undergoing mechanical thrombectomy.
J Neurointerv Surg
December 2024
Department of Neurology, Jinling Hospital, Nanjing Medical University, Nanjing, China
Background: Despite successful recanalization via mechanical thrombectomy (MT), only half of acute ischemic stroke (AIS) patients achieve functional independence. Post-MT hemodynamic features are insufficiently investigated, and the lack of bilateral comparisons limits individual assessment. Therefore, we aimed to explore how individualized hemodynamic features affect functional outcomes using quantitative digital subtraction angiography (Q-DSA).
View Article and Find Full Text PDFHypoperfusion intensity ratio to differentiate between stroke etiologies in patients with a large vessel occlusion.
Eur Stroke J
December 2024
Neurology Department, Hôpital Fondation A. de Rothschild, Paris, France.
Background: Collateral circulation plays a key role in acute ischemic stroke. We sought to determine the association between the arterial collateral status, estimated by the Hypoperfusion Intensity Ratio (HIR) on perfusion MRI, and stroke etiology in anterior circulation large vessel occlusion (LVO).
Methods: We retrospectively analyzed anterior circulation LVO acute stroke patients with a baseline perfusion MRI performed within 24 h from symptom onset.
Direct endovascular treatment may be more appropriate for patients with good collateral circulation: a retrospective case-control study.
Quant Imaging Med Surg
December 2024
Department of Interventional Radiology, The First Affiliated Hospital of Soochow University, Suzhou, China.
Article Synopsis
- Recent studies indicate that endovascular treatment (EVT) alone is as effective as combining intravenous thrombolysis with EVT (IVT + EVT) for treating acute ischemic stroke due to large-vessel occlusion, although some research suggests specific patient subgroups may benefit more from IVT.
- This study analyzed data from 238 patients who underwent EVT or IVT + EVT to determine how collateral circulation affects clinical outcomes, using various statistical methods to control for factors like age and stroke severity.
- Findings revealed that patients with good collateral circulation had significantly better outcomes at 90 days, including lower disability scores, higher success rates of recanalization, and reduced rates of complications such as hemorrhage and mortality.
Correlation between P2-PCA volume flow rate and BOLD cerebrovascular reactivity in patients with symptomatic carotid artery occlusion.
AJNR Am J Neuroradiol
December 2024
From the Department of Neurosurgery (AW., J.F., L.M.H., J.P., M.G., V.S., C.H.B.v.N., L.R., G.E., M.S.), Clinical Neuroscience Center (AW., J.F., L.M.H., J.P., T.S., M.G., V.S., C.H.B.v.N., S.W., A.R.L., Z.K., L.R., G.E., M.S.), Department of Neuroradiology (Z.K.) and Department of Neurology (S.W., A.R.L.), University Hospital Zurich, Zurich, Switzerland; University of Zurich (AW., J.F., L.M.H., J.P., T.S., M.G., V.S., C.H.B.v.N., S.W., A.R.L., Z.K., L.R., G.E., M.S.), Zurich, Switzerland; cereneo Center for Neurology and Rehabilitation (A.R.L.), Vitznau, Switzerland.
Background And Purpose: Identifying and assessing hemodynamic and flow status in patients with symptomatic internal carotid artery (ICA) occlusion is crucial for evaluating recurrent stroke risk. The aim of this study was to analyze the correlation between two quantitative imaging modalities: (1) blood oxygenation level-dependent (BOLD) cerebrovascular reactivity (CVR) and (2) quantitative magnetic resonance angiography (qMRA) with non-invasive optimal vessel analysis (NOVA), measuring volume flow rate (VFR). Comparing these modalities is relevant for assessing collateral circulation and hemodynamic impairment.
View Article and Find Full Text PDFRecurrent Acute Myocardial Infarction in a Patient with Severe Coronary Artery Ectasia Followed Up for 10 Years: Implications of Anticoagulant Therapy.
Am J Case Rep
December 2024
Department of Cardiology, Tianjin Medical University General Hospital, Tianjin, China.
BACKGROUND Coronary artery ectasia (CAE) represents not only an anatomical variant but also a clinical constellation of coronary artery disease associated with acute coronary syndrome (ACS). There is no consensus on the antithrombotic treatment for patients with CEA. CASE REPORT A 34-year-old man with severe diffuse dilatation of the left main artery and left circumflex (LCX) proximal segment confirmed by coronary angiography (CAG) developed 2 acute myocardial infarctions (AMIs), due to occlusion of a dilated LCX segment with thrombus shadows, within a 9-year interval.
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