Intravenous thrombolysis prior to mechanical thrombectomy does not affect clinical or procedural outcomes in patients with large vessel occlusion acute ischemic stroke. 2022

Steven Platko, and Fatima Bensabeur, and Nicholas Rotsching, and Jacob Wagner, and Ronald J Markert, and John B Terry, and Esteban Cheng-Ching
Department of Neurology, Wright State University Boonshoft School of Medicine, Dayton OH, United States; Clinical Neuroscience Institute, Premier Health, Dayton OH, United States.

Mechanical thrombectomy (MT) has revolutionized the care of large vessel occlusion acute ischemic strokes (LVOAIS). However, the benefit of intravenous thrombolysis prior to MT remains unproven. Two recent trials showed equivocal results regarding the benefits of pre-MT intravenous thrombolysis in predominantly Asian populations. We evaluated clinical outcomes and procedural metrics for patients with LVOAIS who were treated with MT alone compared to those who were treated with both intravenous tPA and MT. In a retrospective study, LVOAIS patients treated with MT, with or without preceding intravenous thrombolysis, between January of 2017 and December of 2019 were identified. Patients were treated according to contemporary guidelines. Baseline demographic and clinical characteristics, procedural metrics, and clinical outcomes were collected. Among LVOAIS patients, those treated with intravenous thrombolysis and MT did not differ from those with MT alone on clinical outcomes at three months. Further, the two groups did not differ on thrombectomy procedure times, recanalization rates, and symptomatic intracranial hemorrhage rates. In our patients with LVOAIS, intravenous thrombolysis combined with MT offered no advantage compared to MT alone in clinical outcomes or recanalization rates. Our results are consistent with earlier studies in other populations. In addition, our results suggest that IV tPA does not impact the ease of clot removal by MT. Further studies will evaluate how newly available thrombolytic agents may benefit patients eligible for MT.

UI MeSH Term Description Entries
D002545 Brain Ischemia Localized reduction of blood flow to brain tissue due to arterial obstruction or systemic hypoperfusion. This frequently occurs in conjunction with brain hypoxia (HYPOXIA, BRAIN). Prolonged ischemia is associated with BRAIN INFARCTION. Cerebral Ischemia,Ischemic Encephalopathy,Encephalopathy, Ischemic,Ischemia, Cerebral,Brain Ischemias,Cerebral Ischemias,Ischemia, Brain,Ischemias, Cerebral,Ischemic Encephalopathies
D005343 Fibrinolytic Agents Fibrinolysin or agents that convert plasminogen to FIBRINOLYSIN. Antithrombic Drug,Antithrombotic Agent,Antithrombotic Agents,Fibrinolytic Agent,Fibrinolytic Drug,Thrombolytic Agent,Thrombolytic Agents,Thrombolytic Drug,Antithrombic Drugs,Fibrinolytic Drugs,Thrombolytic Drugs,Agent, Antithrombotic,Agent, Fibrinolytic,Agent, Thrombolytic,Agents, Antithrombotic,Drug, Antithrombic,Drug, Fibrinolytic,Drug, Thrombolytic,Drugs, Antithrombic
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000083242 Ischemic Stroke Stroke due to BRAIN ISCHEMIA resulting in interruption or reduction of blood flow to a part of the brain. When obstruction is due to a BLOOD CLOT formed within in a cerebral blood vessel it is a thrombotic stroke. When obstruction is formed elsewhere and moved to block a cerebral blood vessel (see CEREBRAL EMBOLISM) it is referred to as embolic stroke. Wake-up stroke refers to ischemic stroke occurring during sleep while cryptogenic stroke refers to ischemic stroke of unknown origin. Acute Ischemic Stroke,Cryptogenic Embolism Stroke,Cryptogenic Ischemic Stroke,Cryptogenic Stroke,Ischaemic Stroke,Wake-up Stroke,Acute Ischemic Strokes,Cryptogenic Embolism Strokes,Cryptogenic Ischemic Strokes,Cryptogenic Strokes,Embolism Stroke, Cryptogenic,Ischaemic Strokes,Ischemic Stroke, Acute,Ischemic Stroke, Cryptogenic,Ischemic Strokes,Stroke, Acute Ischemic,Stroke, Cryptogenic,Stroke, Cryptogenic Embolism,Stroke, Cryptogenic Ischemic,Stroke, Ischaemic,Stroke, Ischemic,Stroke, Wake-up,Wake up Stroke,Wake-up Strokes
D012189 Retrospective Studies Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. Retrospective Study,Studies, Retrospective,Study, Retrospective
D015912 Thrombolytic Therapy Use of infusions of FIBRINOLYTIC AGENTS to destroy or dissolve thrombi in blood vessels or bypass grafts. Fibrinolytic Therapy,Thrombolysis, Therapeutic,Therapeutic Thrombolysis,Therapy, Fibrinolytic,Therapy, Thrombolytic,Fibrinolytic Therapies,Therapeutic Thrombolyses,Therapies, Fibrinolytic,Therapies, Thrombolytic,Thrombolyses, Therapeutic,Thrombolytic Therapies
D016896 Treatment Outcome Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series. Rehabilitation Outcome,Treatment Effectiveness,Clinical Effectiveness,Clinical Efficacy,Patient-Relevant Outcome,Treatment Efficacy,Effectiveness, Clinical,Effectiveness, Treatment,Efficacy, Clinical,Efficacy, Treatment,Outcome, Patient-Relevant,Outcome, Rehabilitation,Outcome, Treatment,Outcomes, Patient-Relevant,Patient Relevant Outcome,Patient-Relevant Outcomes
D017131 Thrombectomy Surgical removal of an obstructing clot or foreign material from a blood vessel at the point of its formation. Removal of a clot arising from a distant site is called EMBOLECTOMY. Aspiration Thrombectomy,Percutaneous Aspiration Thrombectomy,Aspiration Thrombectomies,Aspiration Thrombectomies, Percutaneous,Aspiration Thrombectomy, Percutaneous,Percutaneous Aspiration Thrombectomies,Thrombectomies,Thrombectomies, Aspiration,Thrombectomies, Percutaneous Aspiration,Thrombectomy, Aspiration,Thrombectomy, Percutaneous Aspiration
D061185 Mechanical Thrombolysis Procedures to cause the disintegration of THROMBI by physical interventions. Mechanical Clot Disruption,Clot Disruption, Mechanical,Clot Disruptions, Mechanical,Disruption, Mechanical Clot,Disruptions, Mechanical Clot,Mechanical Clot Disruptions,Thrombolysis, Mechanical
D020521 Stroke A group of pathological conditions characterized by sudden, non-convulsive loss of neurological function due to BRAIN ISCHEMIA or INTRACRANIAL HEMORRHAGES. Stroke is classified by the type of tissue NECROSIS, such as the anatomic location, vasculature involved, etiology, age of the affected individual, and hemorrhagic vs. non-hemorrhagic nature. (From Adams et al., Principles of Neurology, 6th ed, pp777-810) Apoplexy,Cerebral Stroke,Cerebrovascular Accident,Cerebrovascular Apoplexy,Vascular Accident, Brain,CVA (Cerebrovascular Accident),Cerebrovascular Accident, Acute,Cerebrovascular Stroke,Stroke, Acute,Acute Cerebrovascular Accident,Acute Cerebrovascular Accidents,Acute Stroke,Acute Strokes,Apoplexy, Cerebrovascular,Brain Vascular Accident,Brain Vascular Accidents,CVAs (Cerebrovascular Accident),Cerebral Strokes,Cerebrovascular Accidents,Cerebrovascular Accidents, Acute,Cerebrovascular Strokes,Stroke, Cerebral,Stroke, Cerebrovascular,Strokes,Strokes, Acute,Strokes, Cerebral,Strokes, Cerebrovascular,Vascular Accidents, Brain

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