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ArticleNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2024

Hypoperfusion index ratio and pretreatment with intravenous thrombolysis are independent predictors of good functional outcome in acute ischemic stroke patients with large vessel occlusion treated with acute reperfusion therapies.

Klearchos Psychogios, Aikaterini Theodorou, Odysseas Kargiotis, Apostolos Safouris, Georgios Velonakis, Lina Palaiodimou, Stavros Spiliopoulos, Sotirios Giannopoulos, Georgios Magoufis, Georgios Tsivgoulis

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Article in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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2citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

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2 citing papers in PubMed.

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5 · Who and what money

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10 authors.

Klearchos PsychogiosStroke Unit, Metropolitan Hospital, 18547, Piraeus, Greece.
Aikaterini TheodorouSecond Department of Neurology, "Attikon" University Hospital, School of Medicine, National and Kapodistrian University of Athens, Rimini 1, 12462, Chaidari, Athens, Greece.
Odysseas KargiotisStroke Unit, Metropolitan Hospital, 18547, Piraeus, Greece.
Apostolos SafourisStroke Unit, Metropolitan Hospital, 18547, Piraeus, Greece.
Georgios VelonakisSecond Department of Radiology, "Attikon" University Hospital, School of Medicine, National and Kapodistrian University of Athens, 12462, Athens, Greece.
Lina PalaiodimouSecond Department of Neurology, "Attikon" University Hospital, School of Medicine, National and Kapodistrian University of Athens, Rimini 1, 12462, Chaidari, Athens, Greece.
Stavros SpiliopoulosSecond Department of Radiology, Interventional Radiology Unit, "Attikon" University Hospital, School of Medicine, National and Kapodistrian University of Athens, 12462, Athens, Greece.
Sotirios GiannopoulosSecond Department of Neurology, "Attikon" University Hospital, School of Medicine, National and Kapodistrian University of Athens, Rimini 1, 12462, Chaidari, Athens, Greece.
Georgios Magoufis *Second Department of Radiology, Interventional Radiology Unit, "Attikon" University Hospital, School of Medicine, National and Kapodistrian University of Athens, 12462, Athens, Greece.
Georgios Tsivgoulis *Second Department of Neurology, "Attikon" University Hospital, School of Medicine, National and Kapodistrian University of Athens, Rimini 1, 12462, Chaidari, Athens, Greece. tsivgoulisgiorg@yahoo.gr.ORCID http://orcid.org/0000-0002-0640-3797

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWe aimed to investigate the performance of several neuroimaging markers provided by perfusion imaging of Acute Ischemic Stroke (AIS) patients with large vessel occlusion (LVO) in order to predict clinical outcomes following reperfusion treatments.

methodsWe prospectively evaluated consecutive AIS patients with LVO who were treated with reperfusion therapies, during a six-year period. In order to compare patients with good (mRS scores 0-2) and poor (mRS scores 3-6) functional outcomes, data regarding clinical characteristics, the Alberta Stroke Programme Early Computed Tomography Score (ASPECTS) based on unenhanced computed tomography (CT), CT angiography collateral status and perfusion parameters including ischemic core, hypoperfusion volume, mismatch volume between core and penumbra, Tmax > 10 s volume, CBV index and the Hypoperfusion Index Ratio (HIR) were assessed.

resultsA total of 84 acute stroke patients with LVO who met all the inclusion criteria were enrolled. In multivariable logistic regression models increasing age (odds ratio [OR]: 0.93; 95%CI: 0.88-0.96, p = 0.001), lower admission National Institute of Health Stroke Scale (NIHSS)-score (OR: 0.88; 95%CI: 0.80-0.95, p = 0.004), pretreatment with intravenous thrombolysis (OR: 3.83; 95%CI: 1.29-12.49, p = 0.019) and HIR (OR:0.36; 95%CI: 0.10-0.95, p = 0.042) were independent predictors of good functional outcome at 3 months. The initial univariable associations between HIR and higher likelihood for symptomatic intracranial hemorrhage (sICH) and parenchymal hematoma type 2 (PH2) were attenuated in multivariable analyses failing to reach statistical significance. DISCUSSION: Our pilot observational study of unselected AIS patients with LVO treated with reperfusion therapies demonstrated that pre-treatment low HIR in perfusion imaging and IVT were associated with better functional outcomes.

Indexed as

Ischemic StrokeThrombolytic TherapyAgedAged, 80 and overCerebrovascular CirculationComputed Tomography AngiographyFemaleFibrinolytic AgentsHumansMaleMiddle AgedPerfusion ImagingProspective StudiesReperfusionTissue Plasminogen ActivatorTreatment OutcomeFibrinolytic AgentsTissue Plasminogen ActivatorAcute ischemic strokeCT perfusionHypoperfusion index ratioIntravenous thrombolysisMechanical thrombectomyPerfusion imaging

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.