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Cereda CW, Bianco G, Mlynash M, Yuen N, Qureshi AY, Hinduja A, Dehkharghani S, Goldman-Yassen AE, Hsieh KLC, Giurgiutiu DV, Gibson D, Carrera E, Alemseged F, Faizy TD, Fiehler J, Pileggi M, Campbell B, Albers GW, Heit JJ. Perfusion Imaging Predicts Favorable Outcomes after Basilar Artery Thrombectomy. Ann Neurol 2021; 91:23-32. [PMID: 34786756 DOI: 10.1002/ana.26272] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 11/13/2021] [Accepted: 11/14/2021] [Indexed: 01/19/2023]
Abstract
OBJECTIVE Perfusion imaging identifies anterior circulation stroke patients who respond favorably to endovascular thrombectomy (ET), but its role in basilar artery occlusion (BAO) is unknown. We hypothesized that BAO patients with limited regions of severe hypoperfusion (time to reach maximum concentration in seconds [Tmax] > 10) would have a favorable response to ET compared to patients with more extensive regions involved. METHODS We performed a multicenter retrospective cohort study of BAO patients with perfusion imaging prior to ET. We prespecified a Critical Area Perfusion Score (CAPS; 0-6 points), which quantified severe hypoperfusion (Tmax > 10) in cerebellum (1 point/hemisphere), pons (2 points), and midbrain and/or thalamus (2 points). Patients were dichotomized into favorable (CAPS ≤ 3) and unfavorable (CAPS > 3) groups. The primary outcome was a favorable functional outcome 90 days after ET (modified Rankin Scale = 0-3). RESULTS One hundred three patients were included. CAPS ≤ 3 patients (87%) had a lower median National Institutes of Health Stroke Scale score (NIHSS; 12.5, interquartile range [IQR] = 7-22) compared to CAPS > 3 patients (13%; 23, IQR = 19-36; p = 0.01). Reperfusion was achieved in 84% of all patients, with no difference between CAPS groups (p = 0.42). Sixty-four percent of reperfused CAPS ≤ 3 patients had a favorable outcome compared to 8% of nonreperfused CAPS ≤ 3 patients (odds ratio [OR] = 21.0, 95% confidence interval [CI] = 2.6-170; p < 0.001). No CAPS > 3 patients had a favorable outcome, regardless of reperfusion. In a multivariate regression analysis, CAPS ≤ 3 was a robust independent predictor of favorable outcome after adjustment for reperfusion, age, and pre-ET NIHSS (OR = 39.25, 95% CI = 1.34->999, p = 0.04). INTERPRETATION BAO patients with limited regions of severe hypoperfusion had a favorable response to reperfusion following ET. However, patients with more extensive regions of hypoperfusion in critical brain regions did not benefit from endovascular reperfusion. ANN NEUROL 2021.
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Affiliation(s)
- Carlo W Cereda
- Neurology, Stroke Center, Medico Caposervizio, Neurocentro (EOC) della Svizzera Italiana, Lugano, Switzerland
| | - Giovanni Bianco
- Neurology, Stroke Center, Medico Caposervizio, Neurocentro (EOC) della Svizzera Italiana, Lugano, Switzerland
| | - Michael Mlynash
- Department of Neurology and Neurological Sciences, Stanford Stroke Center, Stanford University School of Medicine, Stanford, CA
| | - Nicole Yuen
- Department of Neurology and Neurological Sciences, Stanford Stroke Center, Stanford University School of Medicine, Stanford, CA
| | - Abid Y Qureshi
- Department of Neurology, Kansas University Medical Center, Kansas City, KS
| | - Archana Hinduja
- Department of Neurology, Ohio State Wexner Medical Center, Columbus, OH
| | - Seena Dehkharghani
- Departments of Radiology and Neurology, New York University Langone Medical Center, New York, NY
| | | | - Kevin Li-Chun Hsieh
- Department of Medical Imaging, Taipei Medical University Hospital, Taipei, Taiwan
| | | | - Dan Gibson
- Department of Neurointerventional Surgery, Ascension Columbia St Mary's Hospital, Milwaukee, WI
| | - Emmanuel Carrera
- Department of Clinical Neurosciences, Geneva University Hospitals, Geneva, Switzerland
| | - Fana Alemseged
- Department of Medicine and Neurology, Melbourne Brain Centre at the Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria, Australia
| | - Tobias D Faizy
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jens Fiehler
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marco Pileggi
- Department of Neuroradiology, Neurocenter of Southern Switzerland, Cantonal Hospital Corporation, Lugano, Switzerland
| | - Bruce Campbell
- Department of Medicine and Neurology, Melbourne Brain Centre at the Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria, Australia
| | - Gregory W Albers
- Department of Neurology and Neurological Sciences, Stanford Stroke Center, Stanford University School of Medicine, Stanford, CA
| | - Jeremy J Heit
- Department of Radiology, Stanford University School of Medicine, Stanford, CA
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Jadhav AP, Mokin M, Sheth SA, Hassan AE. The Neurointerventional Revolution. Neurology 2021. [DOI: 10.1212/wnl.0000000000012779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Purpose of the ReviewIn a short period of time, the field of interventional neurology has been transformed. Supported by strong Class IA evidence, the vascular and interventional neurology community has been empowered to realign systems of care to address the new challenges that have been introduced. Given the recent developments and accelerating pace of the field, the Society of Vascular and Interventional Neurology has collaborated with the American Academy of Neurology to provide an updated supplemental edition of Neurology® focused on endovascular therapy for acute ischemic stroke.Recent FindingsIn this supplemental edition, the authors discuss the unmet need for endovascular therapy, emerging trends in stroke systems of care, the role of imaging in patient selection, prognostication and treatment-related factors, procedural considerations, current top tier guidelines, recent advances in neuroprotection, and future directions of the field.SummaryThe field of interventional neurology continues to grow and advance, particularly since the seminal stroke trials published between 2015 and 2018. Whereas this progress has significantly improved the ability to alter outcomes after acute ischemic stroke due to large vessel occlusion, important new hurdles present themselves to the neurology community.
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103
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Desai SM, Jha RM, Linfante I. Collateral Circulation Augmentation and Neuroprotection as Adjuvant to Mechanical Thrombectomy in Acute Ischemic Stroke. Neurology 2021; 97:S178-S184. [PMID: 34785616 DOI: 10.1212/wnl.0000000000012809] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 09/03/2021] [Indexed: 01/22/2023] Open
Abstract
PURPOSE OF THE REVIEW Mechanical thrombectomy (MT)-mediated endovascular recanalization has dramatically transformed treatment and outcomes after acute ischemic stroke caused by a large vessel occlusion (LVO). Current guidelines recommend MT up to 24 hours from stroke onset in carefully selected patients based on favorable clinical and imaging parameters. Despite optimal patient selection and low complication rates with current recanalization technology, approximately 1 in 2 patients with LVO stroke do not achieve functional independence at 3 months. This ceiling effect of MT efficacy may be explained by ischemic core expansion into the ischemic penumbra before recanalization and neuronal loss occurring after recanalization. Factors affecting the efficacy of MT, or the degree of irreversible injury, include time from symptom onset to recanalization, collateral circulation status, and differences in neuronal vulnerability. The purpose of this brief review is to discuss potential targets for neuroprotection, present and future potential pharmacologic and nonpharmacologic agents, and the data available in the literature. RECENT FINDINGS In experimental ischemia models, several authors reported that pharmacologic and nonpharmacologic agents are able to slow the progression of ischemic core expansion. However, in the era of unsuccessful recanalization of the occluded artery, several neuroprotective agents that were promising in the preclinical stage failed phase II/III clinical trials. SUMMARY Providing neuroprotection before and after recanalization of an LVO may play an important role in improving outcomes in the era of MT. Neuroprotection is classically defined as a process that results in the salvage, recovery, or regeneration of neuronal (and other supporting CNS cell) structure or function. The advent of successful recanalization of acute LVO by MT in the majority of patients may spur the growth of effective neuroprotection.
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Affiliation(s)
- Shashvat M Desai
- From the Barrow Neurological Institute (S.M.D.), Department of Neurology, Phoenix, AZ; and Baptist Cardiac and Vascular Institute, Department of Neurology, Miami, FL
| | - Ruchira M Jha
- From the Barrow Neurological Institute (S.M.D.), Department of Neurology, Phoenix, AZ; and Baptist Cardiac and Vascular Institute, Department of Neurology, Miami, FL
| | - Italo Linfante
- From the Barrow Neurological Institute (S.M.D.), Department of Neurology, Phoenix, AZ; and Baptist Cardiac and Vascular Institute, Department of Neurology, Miami, FL.
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104
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Jadhav AP, Desai SM, Jovin TG. Indications for Mechanical Thrombectomy for Acute Ischemic Stroke: Current Guidelines and Beyond. Neurology 2021; 97:S126-S136. [PMID: 34785611 DOI: 10.1212/wnl.0000000000012801] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 03/05/2021] [Indexed: 12/13/2022] Open
Abstract
PURPOSE OF THE REVIEW This article reviews recent breakthroughs in the treatment of acute ischemic stroke, mainly focusing on the evolution of endovascular thrombectomy, its impact on guidelines, and the need for and implications of next-generation randomized controlled trials. RECENT FINDINGS Endovascular thrombectomy is a powerful tool to treat large vessel occlusion strokes and multiple trials over the past 5 years have established its safety and efficacy in the treatment of anterior circulation large vessel occlusion strokes up to 24 hours from stroke onset. SUMMARY In 2015, multiple landmark trials (MR CLEAN, ESCAPE, SWIFT PRIME, REVASCAT, and EXTEND IA) established the superiority of endovascular thrombectomy over medical management for the treatment of anterior circulation large vessel occlusion strokes. Endovascular thrombectomy has a strong treatment effect with a number needed to treat ranging from 3 to 10. These trials selected patients based on occlusion location (proximal anterior occlusion: internal carotid or middle cerebral artery), time from stroke onset (early window: up to 6-12 hours), and acceptable infarct burden (Alberta Stroke Program Early CT Score [ASPECTS] ≥6 or infarct volume <50 mL). In 2017, the DAWN and DEFUSE-3 trials successfully extended the time window up to 24 hours in appropriately selected patients. Societal and national thrombectomy guidelines have incorporated these findings and offer Class 1A recommendation to a subset of well-selected patients. Thrombectomy ineligible stroke subpopulations are being studied in ongoing randomized controlled trials. These trials, built on encouraging data from pooled analysis of early trials (HERMES collaboration) and emerging retrospective data, are studying large vessel occlusion strokes with mild deficits (National Institutes of Health Stroke Scale <6) and large infarct burden (core volume >70 mL).
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Affiliation(s)
- Ashutosh P Jadhav
- From the Department of Neurosurgery (A.P.J.), Barrow Neurological Institute, Phoenix, AZ; HonorHealth Research Institute (S.M.D.), Scottsdale, AZ; and Cooper Neurologic Institute (T.G.J.), Camden, NJ.
| | - Shashvat M Desai
- From the Department of Neurosurgery (A.P.J.), Barrow Neurological Institute, Phoenix, AZ; HonorHealth Research Institute (S.M.D.), Scottsdale, AZ; and Cooper Neurologic Institute (T.G.J.), Camden, NJ
| | - Tudor G Jovin
- From the Department of Neurosurgery (A.P.J.), Barrow Neurological Institute, Phoenix, AZ; HonorHealth Research Institute (S.M.D.), Scottsdale, AZ; and Cooper Neurologic Institute (T.G.J.), Camden, NJ
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Ajiboye N, Yoo AJ. Biomarkers of Technical Success After Embolectomy for Acute Stroke. Neurology 2021; 97:S91-S104. [PMID: 34785608 DOI: 10.1212/wnl.0000000000012800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 09/25/2020] [Indexed: 11/15/2022] Open
Abstract
PURPOSE OF THE REVIEW Stent retrievers and large-bore aspiration catheters have doubled substantial reperfusion rates compared to first-generation devices. This has been accompanied by a 3-fold reduction in procedural time to revascularization. To measure future thrombectomy improvements, new benchmarks for technical efficacy are needed. This review summarizes the recent literature concerning biomarkers of procedural success and harm and highlights future directions. RECENT FINDINGS Expanded Treatment in Cerebral Ischemia (eTICI), which incorporates scores for greater levels of reperfusion, improves outcome prediction. Core laboratory-adjudicated studies show that outcomes following eTICI 2c (90%-99% reperfusion) are superior to eTICI 2b50 and nearly equivalent to eTICI 3. Moreover, eTICI 2c improves scale reliability. Studies also confirm the importance of rapid revascularization, whether measured as first pass effect or procedural duration under 30 minutes. Distal embolization is a complication that impedes the extent and speed of revascularization, but few studies have reported its per-pass occurrence. Distal embolization and emboli to new territory should be measured after each thrombectomy maneuver. Collaterals have been shown to be an important modifier of thrombectomy benefit. A drawback of the currently accepted collateral grading scale is that it does not discriminate among the broad spectrum of partial collateralization. Important questions that require investigation include reasons for failed revascularization, the utility of a global Treatment in Cerebral Ischemia scale, and the optimal grading system for vertebrobasilar occlusions. SUMMARY Emerging data support a lead technical efficacy endpoint that combines the extent and speed of reperfusion. Efforts are needed to better characterize angiographic measures of treatment harm and of collateralization.
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Affiliation(s)
| | - Albert J Yoo
- From the Texas Stroke Institute, Dallas-Fort Worth.
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106
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Raza SA, Rangaraju S. Prognostic Scores for Large Vessel Occlusion Strokes. Neurology 2021; 97:S79-S90. [PMID: 34785607 DOI: 10.1212/wnl.0000000000012797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 10/23/2020] [Indexed: 11/15/2022] Open
Abstract
PURPOSE OF THE REVIEW Endovascular thrombectomy (EVT) for large vessel occlusion strokes (LVOS) presents several treatment challenges. We provide a summary of existing tools for patient selection (pre-EVT tools) and for prognostication of long-term outcomes following reperfusion therapy (post-EVT tools). RECENT FINDINGS Recently published randomized trials demonstrated superiority of EVT over medical therapy alone for LVOS. Uniform patient selection paradigms based on demographic, clinical, and radiographic variables are not completely standardized, leading to variability in patient selection for EVT for LVOS. Post-EVT, an accurate assessment of long-term prognosis is critical in the decision-making process. SUMMARY Prognostic scores can serve as useful adjuncts to facilitate clinical decision-making during early management of patients with ischemic stroke, particularly those with LVOS. The acute management of LVOS comprises rapid clinical assessment, triage, and cerebrovascular imaging, followed by evaluation for candidacy for thrombolysis and EVT. Pre-EVT prognostic tools that accurately predict the likelihood of benefit from EVT may guide reliable, efficient, and cost-effective patient selection. Following EVT, severe stroke deficits and subacute poststroke complications that portend a poor prognosis may warrant invasive therapies. Clinical decisions regarding these treatment options involve careful discussions between providers and patient families, and are also based on prognosis provided by the treating clinician. Reliable post-EVT prognostic tools can facilitate this by providing accurate and objective prognostic information. Several prognostic tools have been developed and validated in the literature, some of which may be applicable in the pre-EVT and post-EVT settings, although clinical utility and application varies. Validation in contemporary datasets as well as implementation and impact studies are needed before these scales can be used to guide clinical decisions for individual patients.
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Affiliation(s)
- Syed Ali Raza
- From the Department of Neurology (S.A.R.), Ochsner Louisiana State University Health Sciences Center, Shreveport; and Department of Neurology (S.R.), Emory University, Atlanta GA
| | - Srikant Rangaraju
- From the Department of Neurology (S.A.R.), Ochsner Louisiana State University Health Sciences Center, Shreveport; and Department of Neurology (S.R.), Emory University, Atlanta GA.
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107
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Szmygin M, Sojka M, Tarkowski P, Pyra K, Luchowski P, Wojczal J, Ficek R, Drelich-Zbroja A, Jargiełło T. Predictors of favorable outcome after endovascular thrombectomy for acute ischemic stroke due to large vessel occlusion in young patients. Acta Radiol 2021; 63:1689-1694. [PMID: 34766505 DOI: 10.1177/02841851211056476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Mechanical thrombectomy (MT) became a standard of care for patients with acute ischemic stroke (AIS) with its efficacy demonstrated by meta-analysis and randomized studies. Although ischemic stroke is associated more with older patients, it may also have devastating neurological effects on young patients. PURPOSE To present our experience with stroke patients aged <50 years treated with endovascular means and to evaluate clinical and procedural factors associated with outcome and mortality. MATERIAL AND METHODS This study was conducted on 34 young stroke patients treated with MT. Clinical features including baseline results, radiological imaging, procedural details, and outcome results were documented and evaluated. Recanalization was assessed according to the TICI score. The clinical condition was evaluated after three months using mRS. Mortality rate was calculated. RESULTS The rate of successful recanalization (TICI ≥2c) was 79% (27/34). Symptomatic intracranial hemorrhage (sICH) was observed in 5 (15%) patients. After 90 days, the mortality rate was 12%. Favorable clinical outcome (mRs 0-2) was regained in 65% of the patients whereas satisfactory clinical outcome was seen in 85%. Poor clinical outcome (mRs >2) was observed in 9 (23.7%) patients. CONCLUSION In conclusion, the results of this study demonstrate that MT for AIS in young patients is feasible and provides an excellent rate of arterial recanalization and high rate of favorable outcomes. Statistical analysis showed that shorter time from onset to arrival and reperfusion, successful recanalization and absence of hemorrhagic transformation are the predictors of favorable clinical outcome and overall survival rate.
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Affiliation(s)
- Maciej Szmygin
- Medical University of Lublin, Department of Interventional Radiology and Neuroradiology, Lublin, Lubelskie, Poland
| | - Michał Sojka
- Medical University of Lublin, Department of Interventional Radiology and Neuroradiology, Lublin, Lubelskie, Poland
| | - Piotr Tarkowski
- Medical University of Lublin, Department of Radiology and Nuclear Medicine, Lublin, Lubelskie, Poland
| | - Krzysztof Pyra
- Medical University of Lublin, Department of Interventional Radiology and Neuroradiology, Lublin, Lubelskie, Poland
| | - Piotr Luchowski
- Medical University of Lublin, Department of Neurology, Lublin, Lubelskie, Poland
| | - Joanna Wojczal
- Medical University of Lublin, Department of Neurology, Lublin, Lubelskie, Poland
| | - Remigiusz Ficek
- Medical University of Lublin, Department of Neurology, Lublin, Lubelskie, Poland
| | - Anna Drelich-Zbroja
- Medical University of Lublin, Department of Interventional Radiology and Neuroradiology, Lublin, Lubelskie, Poland
| | - Tomasz Jargiełło
- Medical University of Lublin, Department of Interventional Radiology and Neuroradiology, Lublin, Lubelskie, Poland
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108
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Volbers B, Gröger R, Engelhorn T, Marsch A, Macha K, Schwab S, Dörfler A, Lang S, Kallmünzer B. Acute Stroke With Large Vessel Occlusion and Minor Clinical Deficits: Prognostic Factors and Therapeutic Implications. Front Neurol 2021; 12:736795. [PMID: 34744977 PMCID: PMC8568768 DOI: 10.3389/fneur.2021.736795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/16/2021] [Indexed: 12/11/2022] Open
Abstract
Background and Purpose: The optimal acute management of patients with large vessel occlusion (LVO) and minor clinical deficits on admission [National Institutes of Health Stroke Scale (NIHSS) ≤ 4] remains to be elucidated. The aim of the present study was to investigate the prognostic factors and therapeutic management of those patients. Methods: In this retrospective cohort study, we investigated (1) all patients with acute ischemic stroke due to an LVO who underwent mechanical thrombectomy (MT) and (2) all patients with minor clinical deficits (NIHSS ≤ 4) on admission due to an LVO between January 2013 and December 2016 at the University Medical Center Erlangen. We dichotomized management of patients with minor deficits treated with MT for analysis according to immediate mechanical thrombectomy (IT) and initial medical management with rescue intervention (MM) in case of secondary deterioration. Primary endpoints were secondary deterioration, in-hospital mortality, and functional outcome on day 90 (dichotomized modified Rankin Scale 0–2: favorable, 3–6: poor). Results: Two hundred twenty-three patients (83% with anterior circulation stroke, 13 (6%) with minor deficits) treated with MT and 88 patients with minor deficits due to LVO [13 (15%) treated with MT] were included. Secondary deterioration (n = 19) was independently associated with poor outcome in patients with minor deficits and LVO [odds ratio (OR), 0.060; 95% confidence interval (CI), 0.013–0.280], which in turn was associated with the occlusion site [especially M1 occlusion: 11 (58%) vs. 3 (4%) in patients without secondary deterioration, p < 0.0001]. IT (n = 8) was associated with a lower intrahospital mortality compared to MM (n = 5; 13 vs. 80%; OR, 0.036; 95% CI, 0.002–0.741). Seven of eight patients with IT survived until discharge, with 29% showing a favorable functional outcome on day 90. Conclusions: Secondary deterioration is associated with poor outcome in patients with LVO and minor deficits, which in turn was associated with occlusion site. Future randomized controlled trials should assess whether selected patients, depending on occlusion site and associated characteristics, may benefit from MT.
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Affiliation(s)
- Bastian Volbers
- Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany.,Department of Neuroradiology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Rebecca Gröger
- Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Tobias Engelhorn
- Department of Neuroradiology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Armin Marsch
- Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Kosmas Macha
- Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Stefan Schwab
- Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Arnd Dörfler
- Department of Neuroradiology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Stefan Lang
- Department of Neuroradiology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Bernd Kallmünzer
- Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany
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109
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Lasek-Bal A, Binek Ł, Żak A, Student S, Krzan A, Puz P, Bal W, Uchwat U. Clinical and Non-Clinical Determinants of the Effect of Mechanical Thrombectomy and Post-Stroke Functional Status of Patients in Short and Long-Term Follow-Up. J Clin Med 2021; 10:5084. [PMID: 34768603 PMCID: PMC8584929 DOI: 10.3390/jcm10215084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 10/10/2021] [Accepted: 10/26/2021] [Indexed: 01/07/2023] Open
Abstract
To date, inconsistent results evaluating the effect of parameters on mechanical thrombectomy (MT) outcomes in stroke-patients have been published. This study aimed to identify the key parameters for functional status after MT in stroke-patients in short and long-term follow-up. METHOD The study analysis focused on the relevance of selected clinical and non-clinical parameters to the functional status of the patients after MT. RESULTS 417 stroke-patients (mean age 67.8 ± 13.2 years) were qualified. Atrial fibrillation, and leukocytosis were significant for the neurological status on the first day of stroke (p = 0.036, and p = 0.0004, respectively). The parameters with the strongest effect on the functional status on day 10 were: age (p = 0.009), NIHSS (p = 0.002), hyperglycemia (p = 0.009), the result in TICI (p = 0.046), and first pass effect (p = 0.043). The parameters with the strongest effect on the functional status on day 365 were: age and NIHSS on the first day of stroke (p = 0.0002 and 0.002, respectively). Leukocytosis and the neurological status at baseline were key parameters associated with ICB after MT (p = 0.007 and p = 0.003, respectively). CONCLUSIONS Age and neurological status in the ultra-acute phase of stroke are crucial for the functional status in short and long-term observations of patients treated with mechanical thrombectomy. Atrial fibrillation, hyperglycemia, and inflammatory state are relevant to the short-term post-stroke functional status. First pass effect and the degree of post-interventional reperfusion are important technical parameters to the short-term functional status. Neurological status and white blood count during the acute phase are associated with a high rate of post-procedural intracranial bleeding.
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Affiliation(s)
- Anetta Lasek-Bal
- Department of Neurology, School of Health Sciences, Medical University of Silesia, 40-055 Katowice, Poland; (A.Ż.); (A.K.); (P.P.)
- Department of Neurology, Upper-Silesian Medical Centre, Medical University of Silesia, 40-055 Katowice, Poland; (Ł.B.); (U.U.)
| | - Łukasz Binek
- Department of Neurology, Upper-Silesian Medical Centre, Medical University of Silesia, 40-055 Katowice, Poland; (Ł.B.); (U.U.)
| | - Amadeusz Żak
- Department of Neurology, School of Health Sciences, Medical University of Silesia, 40-055 Katowice, Poland; (A.Ż.); (A.K.); (P.P.)
- Department of Neurology, Upper-Silesian Medical Centre, Medical University of Silesia, 40-055 Katowice, Poland; (Ł.B.); (U.U.)
| | - Sebastian Student
- Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, 44-100 Gliwice, Poland;
- Biotechnology Center, Silesian University of Technology, 44-100 Gliwice, Poland
| | - Aleksandra Krzan
- Department of Neurology, School of Health Sciences, Medical University of Silesia, 40-055 Katowice, Poland; (A.Ż.); (A.K.); (P.P.)
- Department of Neurology, Upper-Silesian Medical Centre, Medical University of Silesia, 40-055 Katowice, Poland; (Ł.B.); (U.U.)
| | - Przemysław Puz
- Department of Neurology, School of Health Sciences, Medical University of Silesia, 40-055 Katowice, Poland; (A.Ż.); (A.K.); (P.P.)
- Department of Neurology, Upper-Silesian Medical Centre, Medical University of Silesia, 40-055 Katowice, Poland; (Ł.B.); (U.U.)
| | - Wiesław Bal
- Department of Outpatient Chemotherapy, Maria Skłodowska-Curie Memorial Cancer Centre and Institute of Oncology, 44-101 Gliwice, Poland;
| | - Urszula Uchwat
- Department of Neurology, Upper-Silesian Medical Centre, Medical University of Silesia, 40-055 Katowice, Poland; (Ł.B.); (U.U.)
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Kim SC, Lee CY, Kim CH, Sohn SI, Hong JH, Park H. The effectiveness of systemic and endovascular intra-arterial thrombectomy protocol for decreasing door-to-recanalization time duration. J Cerebrovasc Endovasc Neurosurg 2021; 24:24-35. [PMID: 34696551 PMCID: PMC8984638 DOI: 10.7461/jcen.2021.e2021.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 08/21/2021] [Indexed: 11/29/2022] Open
Abstract
Objective Variable treatment strategies and protocols have been applied to reduce time durations in the process of acute stroke management. The aim of this study is to investigate the effectiveness of our intra-arterial thrombectomy (IAT) protocol for decreasing door-to-recanalization time duration and improve successful recanalization. Methods A systemic and endovascular protocol included door-to-image, image-to-puncture and puncture-to-recanalization. We retrospectively analyzed the patients of pre- (Sep 2012–Apr 2014) and post-IAT protocol (May 2014–Jul 2018). Univariate analysis was used for the statistical significance according to variable factors (age, gender, the location of occluded vessel, successful recanalization TICI 2b-3). Independent t-test was used to compare the time duration. Results Among all 267 patients with acute stroke of anterior circulation, there were 50 and 217 patients with pre- and post-IAT protocol. Age, gender, and the location of occluded vessel have no statistical significance (p>0.05). In pre- and post-IAT group, successful recanalization was 39 of 50 (78.0%) and 185/217 (85.3%), respectively (p<0.05). Post-IAT (48.8%, 106/217) group had a higher tendency of good outcome than pre-IAT group (36.0%, 18/50) (p>0.05). Pre- and post-IAT group showed 61.7±21.4 vs. 25±16.0 (p<0.05), 102.0±29.8 vs. 82.7±30.4 (min) (p<0.05), and 79.1±47.5 vs. 58.4±75.3 (p<0.05) in three steps, respectively. Conclusions We suggest that the application of systemic and endovascular IAT protocols showed a significant time reduction for faster recanalization in patients with LVO. To build-up the well-designed IAT protocol through puncture-to-recanalization can be needed to decrease time duration and improve clinical outcome in recanalization therapy in acute stroke patients.
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Affiliation(s)
- Su Chel Kim
- Department of Neurosurgery, Keimyung University, Dong-San Medical Center, Daegu, Korea
| | - Chang-Young Lee
- Department of Neurosurgery, Keimyung University, Dong-San Medical Center, Daegu, Korea
| | - Chang-Hyun Kim
- Department of Neurosurgery, Keimyung University, Dong-San Medical Center, Daegu, Korea
| | - Sung-Il Sohn
- Department of Neurology, Keimyung University, Dong-San Medical Center, Daegu, Korea
| | - Jeong-Ho Hong
- Department of Neurology, Keimyung University, Dong-San Medical Center, Daegu, Korea
| | - Hyungjong Park
- Department of Neurology, Keimyung University, Dong-San Medical Center, Daegu, Korea
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111
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Mulder IA, van Bavel ET, de Vries HE, Coutinho JM. Adjunctive cytoprotective therapies in acute ischemic stroke: a systematic review. Fluids Barriers CNS 2021; 18:46. [PMID: 34666786 PMCID: PMC8524879 DOI: 10.1186/s12987-021-00280-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 09/29/2021] [Indexed: 01/08/2023] Open
Abstract
With the introduction of endovascular thrombectomy (EVT), a new era for treatment of acute ischemic stroke (AIS) has arrived. However, despite the much larger recanalization rate as compared to thrombolysis alone, final outcome remains far from ideal. This raises the question if some of the previously tested neuroprotective drugs warrant re-evaluation, since these compounds were all tested in studies where large-vessel recanalization was rarely achieved in the acute phase. This review provides an overview of compounds tested in clinical AIS trials and gives insight into which of these drugs warrant a re-evaluation as an add-on therapy for AIS in the era of EVT. A literature search was performed using the search terms “ischemic stroke brain” in title/abstract, and additional filters. After exclusion of papers using pre-defined selection criteria, a total of 89 trials were eligible for review which reported on 56 unique compounds. Trial compounds were divided into 6 categories based on their perceived mode of action: systemic haemodynamics, excitotoxicity, neuro-inflammation, blood–brain barrier and vasogenic edema, oxidative and nitrosative stress, neurogenesis/-regeneration and -recovery. Main trial outcomes and safety issues are summarized and promising compounds for re-evaluation are highlighted. Looking at group effect, drugs intervening with oxidative and nitrosative stress and neurogenesis/-regeneration and -recovery appear to have a favourable safety profile and show the most promising results regarding efficacy. Finally, possible theories behind individual and group effects are discussed and recommendation for promising treatment strategies are described.
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Affiliation(s)
- I A Mulder
- Department of Biomedical Engineering and Physics, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.
| | - E T van Bavel
- Department of Biomedical Engineering and Physics, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - H E de Vries
- Department of Molecular Cell Biology and Immunology, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - J M Coutinho
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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112
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Maeda M, Fukuda H, Matsuo R, Ago T, Kitazono T, Kamouchi M. Regional Disparity of Reperfusion Therapy for Acute Ischemic Stroke in Japan: A Retrospective Analysis of Nationwide Claims Data from 2010 to 2015. J Am Heart Assoc 2021; 10:e021853. [PMID: 34622661 PMCID: PMC8751889 DOI: 10.1161/jaha.121.021853] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background We aimed to determine whether a regional disparity exists in usage of reperfusion therapy (intravenous recombinant tissue plasminogen activator [IV rt‐PA] and endovascular thrombectomy [EVT]) and post‐reperfusion 30‐day mortality in patients with acute ischemic stroke, and which regional factors are associated with their usage. Methods and Results We retrospectively investigated 69 948 patients (mean age±SD, 74.9±12.0 years; women, 41.4%) with acute ischemic stroke treated with reperfusion therapy between April 2010 and March 2016 in Japan using nationwide claims data. Regional disparity was evaluated using Gini coefficients for age‐ and sex‐adjusted usage of reperfusion therapy and 30‐day post‐reperfusion in‐hospital death ratio in 47 administrative regions. The association between regional factors and reperfusion therapy usage was evaluated with fixed‐effects regression models. During the study period, Gini coefficients showed low inequality (0.11–0.15) for use of IV rt‐PA monotherapy and IV rt‐PA and/or EVT and extreme inequality (0.49) for EVT usage in 2010, which became moderate inequality (0.25) by 2015. The densities of stroke centers and endovascular specialists, as well as market concentration, were associated with increased usage of reperfusion therapy whereas the proportion of rural residents and delayed ambulance transport were negatively associated with usage. Inequality in the standardized death ratio after EVT was extreme (0.86) in 2010 but became moderate (0.29) by 2015; inequality was low to moderate (0.17–0.23) for IV rt‐PA monotherapy and IV rt‐PA and/or EVT. Conclusions Scrutinizing existing data sources revealed regional disparity in reperfusion therapy for acute ischemic stroke and its associated regional factors in Japan.
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Affiliation(s)
- Megumi Maeda
- Department of Health Care Administration and ManagementGraduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Haruhisa Fukuda
- Department of Health Care Administration and ManagementGraduate School of Medical SciencesKyushu UniversityFukuokaJapan
- Center for Cohort StudiesGraduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Ryu Matsuo
- Department of Health Care Administration and ManagementGraduate School of Medical SciencesKyushu UniversityFukuokaJapan
- Department of Medicine and Clinical ScienceGraduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Tetsuro Ago
- Department of Medicine and Clinical ScienceGraduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Takanari Kitazono
- Center for Cohort StudiesGraduate School of Medical SciencesKyushu UniversityFukuokaJapan
- Department of Medicine and Clinical ScienceGraduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Masahiro Kamouchi
- Department of Health Care Administration and ManagementGraduate School of Medical SciencesKyushu UniversityFukuokaJapan
- Center for Cohort StudiesGraduate School of Medical SciencesKyushu UniversityFukuokaJapan
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113
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Rudilosso S, Ríos J, Rodríguez A, Gomis M, Vera V, Gómez-Choco M, Renú A, Matos N, Llull L, Purroy F, Amaro S, Terceño M, Obach V, Serena J, Martí-Fàbregas J, Cardona P, Molina C, Rodríguez-Campello A, Cánovas D, Krupinski J, Ustrell X, Torres F, Román LS, Salvat-Plana M, Jiménez-Fàbrega FX, Palomeras E, Catena E, Colom C, Cocho D, Baiges J, Aragones JM, Diaz G, Costa X, Almendros MC, Rybyeba M, Barceló M, Carrión D, Lòpez MN, Sanjurjo E, de la Ossa NP, Urra X, Chamorro Á. Effectiveness of Thrombectomy in Stroke According to Baseline Prognostic Factors: Inverse Probability of Treatment Weighting Analysis of a Population-Based Registry. J Stroke 2021; 23:401-410. [PMID: 34649384 PMCID: PMC8521260 DOI: 10.5853/jos.2021.00962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 05/10/2021] [Indexed: 11/28/2022] Open
Abstract
Background and Purpose In real-world practice, the benefit of mechanical thrombectomy (MT) is uncertain in stroke patients with very favorable or poor prognostic profiles at baseline. We studied the effectiveness of MT versus medical treatment stratifying by different baseline prognostic factors. Methods Retrospective analysis of 2,588 patients with an ischemic stroke due to large vessel occlusion nested in the population-based registry of stroke code activations in Catalonia from January 2017 to June 2019. The effect of MT on good functional outcome (modified Rankin Score ≤2) and survival at 3 months was studied using inverse probability of treatment weighting (IPTW) analysis in three pre-defined baseline prognostic groups: poor (if pre-stroke disability, age >85 years, National Institutes of Health Stroke Scale [NIHSS] >25, time from onset >6 hours, Alberta Stroke Program Early CT Score <6, proximal vertebrobasilar occlusion, supratherapeutic international normalized ratio >3), good (if NIHSS <6 or distal occlusion, in the absence of poor prognostic factors), or reference (not meeting other groups’ criteria).
Results Patients receiving MT (n=1,996, 77%) were younger, had less pre-stroke disability, and received systemic thrombolysis less frequently. These differences were balanced after the IPTW stratified by prognosis. MT was associated with good functional outcome in the reference (odds ratio [OR], 2.9; 95% confidence interval [CI], 2.0 to 4.4), and especially in the poor baseline prognostic stratum (OR, 3.9; 95% CI, 2.6 to 5.9), but not in the good prognostic stratum. MT was associated with survival only in the poor prognostic stratum (OR, 2.6; 95% CI, 2.0 to 3.3).
Conclusions Despite their worse overall outcomes, the impact of thrombectomy over medical management was more substantial in patients with poorer baseline prognostic factors than patients with good prognostic factors.
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Affiliation(s)
- Salvatore Rudilosso
- Comprehensive Stroke Center, Department of Neuroscience, Hospital Clínic of Barcelona, Barcelona, Spain.,Clinical and Experimental Neuroscience: Cerebrovascular Diseases, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - José Ríos
- Medical Statistics Core Facility, August Pi i Sunyer Biomedical Research Institute (IDIBAPS) and Hospital Clinic, Barcelona, Spain.,Biostatistics Unit, Faculty of Medicine, Autonomous University of Barcelona, Barcelona, Spain
| | - Alejandro Rodríguez
- Comprehensive Stroke Center, Department of Neuroscience, Hospital Clínic of Barcelona, Barcelona, Spain
| | - Meritxell Gomis
- Stroke Unit, Department of Neuroscience, Germans Trias Hospital, Badalona, Spain
| | - Víctor Vera
- Comprehensive Stroke Center, Department of Neuroscience, Hospital Clínic of Barcelona, Barcelona, Spain
| | | | - Arturo Renú
- Comprehensive Stroke Center, Department of Neuroscience, Hospital Clínic of Barcelona, Barcelona, Spain.,Clinical and Experimental Neuroscience: Cerebrovascular Diseases, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Núria Matos
- Department of Neurology, Althaia Foundation Hospital, Manresa, Spain
| | - Laura Llull
- Comprehensive Stroke Center, Department of Neuroscience, Hospital Clínic of Barcelona, Barcelona, Spain.,Clinical and Experimental Neuroscience: Cerebrovascular Diseases, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Francisco Purroy
- Stroke Unit, Department of Neurology, University Hospital Arnau of Vilanova, Lleida, Spain
| | - Sergio Amaro
- Comprehensive Stroke Center, Department of Neuroscience, Hospital Clínic of Barcelona, Barcelona, Spain.,Clinical and Experimental Neuroscience: Cerebrovascular Diseases, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Mikel Terceño
- Stroke Unit, Department of Neurology, Josep Trueta University Hospital, Girona, Spain
| | - Víctor Obach
- Comprehensive Stroke Center, Department of Neuroscience, Hospital Clínic of Barcelona, Barcelona, Spain
| | - Joaquim Serena
- Stroke Unit, Department of Neurology, Josep Trueta University Hospital, Girona, Spain
| | - Joan Martí-Fàbregas
- Stroke Unit, Department of Neurology, Santa Creu i Sant Pau, Barcelona, Spain
| | - Pedro Cardona
- Stroke Unit, Department of Neurology, Bellvitge University Hospital, Barcelona, Spain
| | - Carlos Molina
- Stroke Unit, Department of Neurology, Vall d'Hebron University Hospital, Barcelona, Spain
| | | | - David Cánovas
- Department of Neurology, Parc Taulí Hospital, Sabadell, Spain
| | - Jerzy Krupinski
- Department of Neurology, Mutua de Terrassa University Hospital, Terrassa, Spain
| | - Xavier Ustrell
- Stroke Unit, Department of Neurology, Joan XXIII University Hospital, Terragona, Spain
| | - Ferran Torres
- Medical Statistics Core Facility, August Pi i Sunyer Biomedical Research Institute (IDIBAPS) and Hospital Clinic, Barcelona, Spain.,Biostatistics Unit, Faculty of Medicine, Autonomous University of Barcelona, Barcelona, Spain
| | - Luis San Román
- Department of Radiology, Hospital Clínic of Barcelona, Barcelona, Spain
| | - Mercè Salvat-Plana
- Department of Health, Pla Director Malaltia Vascular Cerebral (Catalan Stroke Program), Barcelona, Spain
| | | | | | - Esther Catena
- Department of Neurology, Consorci Sanitari Garraf Hospital, Sant Pere de Ribes, Spain
| | - Carla Colom
- Department of Emergency, Hospital of Igualada, Igualada, Spain
| | - Dolores Cocho
- Department of Emergency, Hospital of Granollers, Granollers, Spain
| | - Juanjo Baiges
- Department of Emergency, Verge de la Cinta Hospital, Tortosa, Spain
| | | | - Gloria Diaz
- Department of Emergency, Hospital of Campdevànol, Campdevànol, Spain
| | - Xavier Costa
- Department of Emergency, Hospital of Figueres, Figueres, Spain
| | | | - Maria Rybyeba
- Department of Emergency, Hospital of Olot, Olot, Spain
| | - Miquel Barceló
- Department of Emergency, Cerdanya Hospital, Puigcerdá, Spain
| | - Dolors Carrión
- Department of Emergency, Hospital of Móra d'Ebre, Móra d'Ebre, Spain
| | | | | | - Natalia Pérez de la Ossa
- Stroke Unit, Department of Neuroscience, Germans Trias Hospital, Badalona, Spain.,Department of Health, Pla Director Malaltia Vascular Cerebral (Catalan Stroke Program), Barcelona, Spain
| | - Xabier Urra
- Comprehensive Stroke Center, Department of Neuroscience, Hospital Clínic of Barcelona, Barcelona, Spain.,Clinical and Experimental Neuroscience: Cerebrovascular Diseases, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Ángel Chamorro
- Comprehensive Stroke Center, Department of Neuroscience, Hospital Clínic of Barcelona, Barcelona, Spain.,Clinical and Experimental Neuroscience: Cerebrovascular Diseases, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain.,University of Barcelona, Barcelona, Spain
| | -
- Comprehensive Stroke Center, Department of Neuroscience, Hospital Clínic of Barcelona, Barcelona, Spain
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114
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Hasan TF, Hasan H, Kelley RE. Overview of Acute Ischemic Stroke Evaluation and Management. Biomedicines 2021; 9:1486. [PMID: 34680603 PMCID: PMC8533104 DOI: 10.3390/biomedicines9101486] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/05/2021] [Accepted: 10/13/2021] [Indexed: 01/19/2023] Open
Abstract
Stroke is a major contributor to death and disability worldwide. Prior to modern therapy, post-stroke mortality was approximately 10% in the acute period, with nearly one-half of the patients developing moderate-to-severe disability. The most fundamental aspect of acute stroke management is "time is brain". In acute ischemic stroke, the primary therapeutic goal of reperfusion therapy, including intravenous recombinant tissue plasminogen activator (IV TPA) and/or endovascular thrombectomy, is the rapid restoration of cerebral blood flow to the salvageable ischemic brain tissue at risk for cerebral infarction. Several landmark endovascular thrombectomy trials were found to be of benefit in select patients with acute stroke caused by occlusion of the proximal anterior circulation, which has led to a paradigm shift in the management of acute ischemic strokes. In this modern era of acute stroke care, more patients will survive with varying degrees of disability post-stroke. A comprehensive stroke rehabilitation program is critical to optimize post-stroke outcomes. Understanding the natural history of stroke recovery, and adapting a multidisciplinary approach, will lead to improved chances for successful rehabilitation. In this article, we provide an overview on the evaluation and the current advances in the management of acute ischemic stroke, starting in the prehospital setting and in the emergency department, followed by post-acute stroke hospital management and rehabilitation.
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Affiliation(s)
- Tasneem F. Hasan
- Department of Neurology, Ochsner Louisiana State University Health Sciences Center, Shreveport, LA 71103, USA;
| | - Hunaid Hasan
- Hasan & Hasan Neurology Group, Lapeer, MI 48446, USA;
| | - Roger E. Kelley
- Department of Neurology, Ochsner Louisiana State University Health Sciences Center, Shreveport, LA 71103, USA;
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115
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Farag E, Liang C, Mascha EJ, Toth G, Argalious M, Manlapaz M, Gomes J, Ebrahim Z, Hussain MS. Oxygen Saturation and Postoperative Mortality in Patients With Acute Ischemic Stroke Treated by Endovascular Thrombectomy. Anesth Analg 2021; 134:369-379. [PMID: 34609988 DOI: 10.1213/ane.0000000000005763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Monitored anesthesia care (MAC) and general anesthesia (GA) with endotracheal intubation are the 2 most used techniques for patients with acute ischemic stroke (AIS) undergoing endovascular thrombectomy. We aimed to test the hypothesis that increased arterial oxygen concentration during reperfusion period is a mechanism underlying the association between use of GA (versus MAC) and increased risk of in-hospital mortality. METHODS In this retrospective cohort study, data were collected at the Cleveland Clinic between 2013 and 2018. To assess the potential mediation effect of time-weighted average oxygen saturation (Spo2) in first postoperative 48 hours between the association between GA versus MAC and in-hospital mortality, we assessed the association between anesthesia type and post-operative Spo2 tertiles (exposure-mediator relationship) through a cumulative logistic regression model and assessed the association between Spo2 and in-hospital mortality (mediator-outcome relationship) using logistic regression models. Confounding factors were adjusted for using propensity score methods. Both significant exposure-mediator and significant mediator-outcome relationships are needed to suggest potential mediation effect. RESULTS Among 358 patients included in the study, 104 (29%) patients received GA and 254 (71%) received MAC, with respective hospital mortality rate of 19% and 5% (unadjusted P value <.001). GA patients were 1.6 (1.2, 2.1) (P < .001) times more likely to have a higher Spo2 tertile as compared to MAC patients. Patients with higher Spo2 tertile had 3.8 (2.1, 6.9) times higher odds of mortality than patients with middle Spo2 tertile, while patients in the lower Spo2 tertile did not have significant higher odds compared to the middle tertile odds ratio (OR) (1.8 [0.9, 3.4]; overall P < .001). The significant exposure-mediator and mediator-outcome relationships suggest that Spo2 may be a mediator of the relationship between anesthetic method and mortality. However, the estimated direct effect of GA versus MAC on mortality (ie, after adjusting for Spo2; OR [95% confidence interval {CI}] of 2.1 [0.9-4.9]) was close to the estimated association ignoring Spo2 (OR [95% CI] of 2.2 [1.0-5.1]), neither statistically significant, suggesting that Spo2 had at most a modest mediator role. CONCLUSIONS GA was associated with a higher Spo2 compared to MAC among those treated by endovascular thrombectomy for AIS. Spo2 values that were higher than the middle tertile were associated with higher odds of mortality. However, GA was not significantly associated with higher odds of death. Spo2 at most constituted a modest mediator role in explaining the relationship between GA versus MAC and mortality.
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Affiliation(s)
- Ehab Farag
- From the Department of General Anesthesia.,Department of Outcomes Research, Anesthesiology & Pain Management Institute
| | - Chen Liang
- Department of Outcomes Research, Anesthesiology & Pain Management Institute.,Department of Quantitative Health Sciences, Lerner Research Institute
| | - Edward J Mascha
- Department of Outcomes Research, Anesthesiology & Pain Management Institute.,Department of Quantitative Health Sciences, Lerner Research Institute
| | - Gabor Toth
- Department of Neurointerventional Radiology
| | | | | | - Joao Gomes
- Department of Neurology, Neurological Institute, The Cleveland Clinic, Cleveland, Ohio
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116
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Zachrison KS, Sharma R, Wang Y, Mehrotra A, Schwamm LH. National Trends in Telestroke Utilization in a US Commercial Platform Prior to the COVID-19 Pandemic. J Stroke Cerebrovasc Dis 2021; 30:106035. [PMID: 34419836 PMCID: PMC8494566 DOI: 10.1016/j.jstrokecerebrovasdis.2021.106035] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 07/21/2021] [Accepted: 08/01/2021] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVES Most data on telestroke utilization come from single academic hub-and-spoke telestroke networks. Our objective was to describe characteristics of telestroke consultations among a national sample of telestroke sites on one of the most commonly used common vendor platforms, prior to the COVID-19 public health emergency. MATERIALS AND METHODS A commercial telestroke vendor provided data on all telestroke consultations by two specialist provider groups from 2013-2019. Kendall's τ β nonparametric test was utilized to assess time trends. Generalized linear models were used to assess the association between hospital consult utilization and alteplase use adjusting for hospital characteristics. RESULTS Among 67,736 telestroke consultations to 132 spoke sites over the study period, most occurred in the emergency department (90%) and for stroke indications (final clinical diagnoses: TIA 13%, ischemic stroke 39%, hemorrhagic stroke 2%, stroke mimics 46%). Stroke severity was low (median NIHSS 2, IQR 0-6). Alteplase was recommended for 23% of ischemic stroke patients. From 2013 to 2019, times from ED arrival to NIHSS, CT scan, imaging review, consult, and alteplase administration all decreased (p<0.05 for all), while times from consult start to alteplase recommendation and bolus increased (p<0.01 for both). Transfer was recommended for 8% of ischemic stroke patients. Number of patients treated with alteplase per hospital increased with increasing number of consults and hospital size and was also associated with US region in unadjusted and adjusted analyses. Longer duration of hospital participation in the network was associated with shorter hospital median door-to-needle time for alteplase delivery (39 min shorter per year, p=0.04). CONCLUSIONS Among spoke sites using a commercial telestroke platform over a seven-year time horizon, times to consult start and alteplase bolus decreased over time. Similar to academic networks, duration of telestroke participation in this commercial network was associated with faster alteplase delivery, suggesting practice improves performance.
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Affiliation(s)
- Kori S Zachrison
- Department of Emergency Medicine, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, United States.
| | - Richa Sharma
- Department of Neurology, Yale University School of Medicine, New Haven, CT, United States
| | - Yulun Wang
- TelaDoc Health, Harrison, NY, United States
| | - Ateev Mehrotra
- Department of Health Care Policy, Harvard Medical School, Boston, MA, United States
| | - Lee H Schwamm
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States
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117
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Londhe SR, Gg SK, Keshava SN, Mohan C. Indian College of Radiology and Imaging (ICRI) Consensus Guidelines for the Early Management of Patients with Acute Ischemic Stroke: Imaging and Intervention. Indian J Radiol Imaging 2021; 31:400-408. [PMID: 34556925 PMCID: PMC8448212 DOI: 10.1055/s-0041-1734346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The medical science has witnessed significant change in the management of acute stroke patients as a result of recent advances in the field of stroke imaging and endovascular mechanical thrombectomy in addition to intravenous thrombolysis and optimization of stroke services in balance with available resources. Despite initial negative trials, we witnessed the publication of five multicenter randomized clinical trials showing superiority of the endovascular approach over standard medical management in patients with large vessel occlusion. The aim of this study is to provide comprehensive set of evidence-based recommendations regarding imaging and endovascular interventions in acute ischemic stroke patients.
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Affiliation(s)
- Shrikant R Londhe
- Department of Interventional Neuroradiology, Noble Hospital, Pune, Maharashtra, India
| | - Sharath Kumar Gg
- Department of Diagnostic and Interventional Neuroradiology, Apollo Hospitals, Bangalore, Karnataka, India
| | - Shyamkumar N Keshava
- Department of Interventional Radiology, Christian Medical College, Ida Scudder Road, Vellore, Tamil Nadu, India
| | - Chander Mohan
- Interventional Radiology, ICRI Director, Interventional Radiology, BLK Super Specialty Hospital, Pusa Road, New Delhi, India
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118
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Nguyen TN, Strbian D. Endovascular Therapy for Stroke due to Basilar Artery Occlusion: A BASIC Challenge at BEST. Stroke 2021; 52:3410-3413. [PMID: 34517766 DOI: 10.1161/strokeaha.121.035948] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Basilar artery occlusion stroke is known to have poor outcome with a high rate of morbidity and mortality despite best medical therapy. Since the original report of intra-arterial therapy for basilar artery occlusion in 1983, two recent randomized trials comparing endovascular therapy versus best medical management were completed on a large scale, BASICS (Basilar Artery International Cooperation Study) and the BEST trial (Basilar Artery Occlusion Endovascular Intervention Versus Standard Medical Treatment), both of which demonstrated equivocal benefit of the two modalities. In this commentary, we comment and highlight important lessons related to basilar occlusion stroke as learned from the BASICS and BEST randomized trials.
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Affiliation(s)
- Thanh N Nguyen
- Department of Neurology, Radiology, Boston Medical Center, Boston University School of Medicine, MA (T.N.N.).,Department of Neurology, Helsinki University Central Hospital, Finland (D.S.)
| | - Daniel Strbian
- Department of Neurology, Radiology, Boston Medical Center, Boston University School of Medicine, MA (T.N.N.).,Department of Neurology, Helsinki University Central Hospital, Finland (D.S.)
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119
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Kuribara T, Iihoshi S, Tsukagoshi E, Teranishi A, Kinoshita Y, Sugasawa S, Kohyama S, Takahashi S, Kurita H. Thrombectomy for acute large vessel occlusion in posterior and anterior circulation: a single institutional retrospective observational study. Neuroradiology 2021; 64:565-574. [PMID: 34477913 PMCID: PMC8850247 DOI: 10.1007/s00234-021-02799-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/28/2021] [Indexed: 12/04/2022]
Abstract
Purpose Thrombectomy has been the gold standard therapy for anterior circulation occlusion; however, studies regarding thrombectomy in posterior circulation are lacking. In this study, we compared the efficiency of thrombectomy for acute large vessel occlusion between the posterior and anterior circulation at a single institution. Methods We retrospectively analyzed consecutive patients who underwent thrombectomy for acute large vessel occlusion at our institution between August 2014 and April 2021. Differences in the clinical background, time course, and treatment technique and outcomes were evaluated between anterior and posterior circulation occlusions. Results Overall, 353 patients (225 men and 128 women) were included: 314 patients had anterior circulation occlusion and 39 patients had posterior circulation occlusion. Between the patients with anterior and posterior circulation occlusions, the National Institutes of Health Stroke Scale (NIHSS) score (16 [12–21] vs. 29 [19–34], respectively, p < 0.001), door-to-puncture time (65 [45–99] vs. 99 [51–121] min, respectively, p = 0.018), and mortality (22 [7%] vs. 8 [20.5%] patients, respectively, p = 0.010) were significantly different; however, favorable outcome was not significantly different. Conclusion Higher NIHSS score, delayed treatment, and higher mortality were observed in posterior circulation occlusion than in anterior circulation occlusion; successful reperfusion and favorable outcomes were similar between them. Similar favorable outcomes and reperfusion ratio to the anterior circulation might be achieved also in the posterior circulation; however, delayed treatment and the optimal first-pass strategy might need further improvement.
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Affiliation(s)
- Tomoyoshi Kuribara
- Department of Endovascular Neurosurgery, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan
| | - Satoshi Iihoshi
- Department of Endovascular Neurosurgery, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan.
| | - Eisuke Tsukagoshi
- Department of Endovascular Neurosurgery, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan
| | - Akio Teranishi
- Department of Endovascular Neurosurgery, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan
| | - Yu Kinoshita
- Department of Endovascular Neurosurgery, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan
| | - Shin Sugasawa
- Department of Endovascular Neurosurgery, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan
| | - Shinya Kohyama
- Department of Endovascular Neurosurgery, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan
| | - Shinichi Takahashi
- Department of Neurology and Cerebrovascular Medicine, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - Hiroki Kurita
- Department of Cerebrovascular Surgery, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
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Maniskas ME, Roberts JM, Gorman A, Bix GJ, Fraser JF. Intra-arterial combination therapy for experimental acute ischemic stroke. Clin Transl Sci 2021; 15:279-286. [PMID: 34463026 PMCID: PMC8742650 DOI: 10.1111/cts.13147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 07/14/2021] [Accepted: 08/06/2021] [Indexed: 11/28/2022] Open
Abstract
Acute ischemic stroke continues to devastate millions of individuals worldwide. Current treatments work to restore blood flow but not rescue affected tissue. Our goal was to develop a combination of neuroprotective agents administered intra-arterially following recanalization to target ischemic tissue. Using C57Bl/6J male mice, we performed tandem transient ipsilateral middle cerebral/common carotid artery occlusion, followed by immediate intra-arterial pharmacotherapy administration through a standardized protocol. Two pharmacotherapy agents, verapamil and lubeluzole, were selected based on their potential to modulate different aspects of the ischemic cascade; verapamil, a calcium channel blocker, works in an acute fashion blocking L-type calcium channels, whereas lubeluzole, an N-methyl-D-aspartate modulator, works in a delayed fashion blocking intracellular glutamate trafficking. We hypothesized that combination therapy would provide complimentary and potentially synergistic benefit treating brain tissue undergoing various stages of injury. Physiological measurements for heart rate and pulse distention (blood pressure) demonstrated no detrimental effects between groups, suggesting that the combination drug administration is safe. Tissue analysis demonstrated a significant difference between combination and control (saline) groups in infarct volume, neuronal health, and astrogliosis. Although a significant difference in functional outcome was not observed, we did note that the combination treatment group had a greater percent change from baseline in forced motor movement as compared with controls. This study demonstrates the safety and feasibility of intra-arterial combination therapy following successful recanalization and warrants further study.
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Affiliation(s)
- Michael E Maniskas
- Department of Neurosurgery, University of Kentucky, Lexington, Kentucky, USA.,Department of Neurology, University of Kentucky, Lexington, Kentucky, USA.,Department of Radiology, University of Kentucky, Lexington, Kentucky, USA.,Department of Neuroscience, University of Kentucky, Lexington, Kentucky, USA.,Sanders Brown Center on Aging, University of Kentucky, Lexington, Kentucky, USA.,Center for Advanced Translational Stroke Science, University of Kentucky, Lexington, Kentucky, USA
| | - Jill M Roberts
- Department of Neurosurgery, University of Kentucky, Lexington, Kentucky, USA.,Department of Neuroscience, University of Kentucky, Lexington, Kentucky, USA
| | - Amanda Gorman
- Sanders Brown Center on Aging, University of Kentucky, Lexington, Kentucky, USA.,Center for Advanced Translational Stroke Science, University of Kentucky, Lexington, Kentucky, USA
| | - Gregory J Bix
- Clinical Neuroscience Research Center, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Justin F Fraser
- Department of Neurosurgery, University of Kentucky, Lexington, Kentucky, USA.,Department of Neurology, University of Kentucky, Lexington, Kentucky, USA.,Department of Radiology, University of Kentucky, Lexington, Kentucky, USA.,Department of Neuroscience, University of Kentucky, Lexington, Kentucky, USA.,Center for Advanced Translational Stroke Science, University of Kentucky, Lexington, Kentucky, USA
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Braun RG, Heitsch L, Cole JW, Lindgren AG, de Havenon A, Dude JA, Lohse KR, Cramer SC, Worrall BB. Domain-Specific Outcomes for Stroke Clinical Trials: What the Modified Rankin Isn't Ranking. Neurology 2021; 97:367-377. [PMID: 34172537 PMCID: PMC8397584 DOI: 10.1212/wnl.0000000000012231] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 04/20/2021] [Indexed: 11/15/2022] Open
Abstract
Global outcome measures that are widely used in stroke clinical trials, such as the modified Rankin Scale (mRS), lack sufficient detail to detect changes within specific domains (e.g., sensory, motor, visual, linguistic, or cognitive function). Yet such data are vital for understanding stroke recovery and its mechanisms. Poststroke deficits in specific domains differ in their rate and degree of recovery and in their effects on overall independence and quality of life. For example, even in a patient with complete recovery of strength, persistent deficits in the nonmotor domains such as language and cognition may make a return to independent living impossible. In such cases, global measures based solely on the patient's degree of independence would overlook a complete recovery in the motor domain. Capturing these important aspects of recovery demands a domain-specific approach. If stroke outcomes trials are to incorporate finer-grained recovery metrics-which can require substantial time, effort, and expertise to implement-efficiency must be a priority. In this article, we discuss how commonly collected clinical data from the NIH Stroke Scale can guide the judicious selection of relevant recovery domains for more detailed testing. Our overarching goal is to make the implementation of domain-specific testing more feasible for large-scale clinical trials on stroke recovery.
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Affiliation(s)
- Robynne G Braun
- From the Department of Neurology (R.G.B., J.W.C.), University of Maryland, Baltimore; Department of Emergency Medicine (L.H.), Washington University, St. Louis, MO; Department of Clinical Sciences, Lund (A.L.), Lund University; Department of Neurology (A.G.L.), Skåne University Hospital, Lund, Sweden; Departments of Neurology (A.d.H.) and Health and Kinesiology (J.A.D., K.R.L.), University of Utah, Salt Lake City; Department of Neurology (S.C.C.), University of California, Los Angeles; California Rehabilitation Institute (S.C.C.), Los Angeles; and Departments of Neurology and Public Health Sciences (B.B.W.), University of Virginia, Charlottesville.
| | - Laura Heitsch
- From the Department of Neurology (R.G.B., J.W.C.), University of Maryland, Baltimore; Department of Emergency Medicine (L.H.), Washington University, St. Louis, MO; Department of Clinical Sciences, Lund (A.L.), Lund University; Department of Neurology (A.G.L.), Skåne University Hospital, Lund, Sweden; Departments of Neurology (A.d.H.) and Health and Kinesiology (J.A.D., K.R.L.), University of Utah, Salt Lake City; Department of Neurology (S.C.C.), University of California, Los Angeles; California Rehabilitation Institute (S.C.C.), Los Angeles; and Departments of Neurology and Public Health Sciences (B.B.W.), University of Virginia, Charlottesville
| | - John W Cole
- From the Department of Neurology (R.G.B., J.W.C.), University of Maryland, Baltimore; Department of Emergency Medicine (L.H.), Washington University, St. Louis, MO; Department of Clinical Sciences, Lund (A.L.), Lund University; Department of Neurology (A.G.L.), Skåne University Hospital, Lund, Sweden; Departments of Neurology (A.d.H.) and Health and Kinesiology (J.A.D., K.R.L.), University of Utah, Salt Lake City; Department of Neurology (S.C.C.), University of California, Los Angeles; California Rehabilitation Institute (S.C.C.), Los Angeles; and Departments of Neurology and Public Health Sciences (B.B.W.), University of Virginia, Charlottesville
| | - Arne G Lindgren
- From the Department of Neurology (R.G.B., J.W.C.), University of Maryland, Baltimore; Department of Emergency Medicine (L.H.), Washington University, St. Louis, MO; Department of Clinical Sciences, Lund (A.L.), Lund University; Department of Neurology (A.G.L.), Skåne University Hospital, Lund, Sweden; Departments of Neurology (A.d.H.) and Health and Kinesiology (J.A.D., K.R.L.), University of Utah, Salt Lake City; Department of Neurology (S.C.C.), University of California, Los Angeles; California Rehabilitation Institute (S.C.C.), Los Angeles; and Departments of Neurology and Public Health Sciences (B.B.W.), University of Virginia, Charlottesville
| | - Adam de Havenon
- From the Department of Neurology (R.G.B., J.W.C.), University of Maryland, Baltimore; Department of Emergency Medicine (L.H.), Washington University, St. Louis, MO; Department of Clinical Sciences, Lund (A.L.), Lund University; Department of Neurology (A.G.L.), Skåne University Hospital, Lund, Sweden; Departments of Neurology (A.d.H.) and Health and Kinesiology (J.A.D., K.R.L.), University of Utah, Salt Lake City; Department of Neurology (S.C.C.), University of California, Los Angeles; California Rehabilitation Institute (S.C.C.), Los Angeles; and Departments of Neurology and Public Health Sciences (B.B.W.), University of Virginia, Charlottesville
| | - Jason A Dude
- From the Department of Neurology (R.G.B., J.W.C.), University of Maryland, Baltimore; Department of Emergency Medicine (L.H.), Washington University, St. Louis, MO; Department of Clinical Sciences, Lund (A.L.), Lund University; Department of Neurology (A.G.L.), Skåne University Hospital, Lund, Sweden; Departments of Neurology (A.d.H.) and Health and Kinesiology (J.A.D., K.R.L.), University of Utah, Salt Lake City; Department of Neurology (S.C.C.), University of California, Los Angeles; California Rehabilitation Institute (S.C.C.), Los Angeles; and Departments of Neurology and Public Health Sciences (B.B.W.), University of Virginia, Charlottesville
| | - Keith R Lohse
- From the Department of Neurology (R.G.B., J.W.C.), University of Maryland, Baltimore; Department of Emergency Medicine (L.H.), Washington University, St. Louis, MO; Department of Clinical Sciences, Lund (A.L.), Lund University; Department of Neurology (A.G.L.), Skåne University Hospital, Lund, Sweden; Departments of Neurology (A.d.H.) and Health and Kinesiology (J.A.D., K.R.L.), University of Utah, Salt Lake City; Department of Neurology (S.C.C.), University of California, Los Angeles; California Rehabilitation Institute (S.C.C.), Los Angeles; and Departments of Neurology and Public Health Sciences (B.B.W.), University of Virginia, Charlottesville
| | - Steven C Cramer
- From the Department of Neurology (R.G.B., J.W.C.), University of Maryland, Baltimore; Department of Emergency Medicine (L.H.), Washington University, St. Louis, MO; Department of Clinical Sciences, Lund (A.L.), Lund University; Department of Neurology (A.G.L.), Skåne University Hospital, Lund, Sweden; Departments of Neurology (A.d.H.) and Health and Kinesiology (J.A.D., K.R.L.), University of Utah, Salt Lake City; Department of Neurology (S.C.C.), University of California, Los Angeles; California Rehabilitation Institute (S.C.C.), Los Angeles; and Departments of Neurology and Public Health Sciences (B.B.W.), University of Virginia, Charlottesville
| | - Bradford B Worrall
- From the Department of Neurology (R.G.B., J.W.C.), University of Maryland, Baltimore; Department of Emergency Medicine (L.H.), Washington University, St. Louis, MO; Department of Clinical Sciences, Lund (A.L.), Lund University; Department of Neurology (A.G.L.), Skåne University Hospital, Lund, Sweden; Departments of Neurology (A.d.H.) and Health and Kinesiology (J.A.D., K.R.L.), University of Utah, Salt Lake City; Department of Neurology (S.C.C.), University of California, Los Angeles; California Rehabilitation Institute (S.C.C.), Los Angeles; and Departments of Neurology and Public Health Sciences (B.B.W.), University of Virginia, Charlottesville
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Acute Reperfusion Therapies for Acute Ischemic Stroke. J Clin Med 2021; 10:jcm10163677. [PMID: 34441973 PMCID: PMC8396980 DOI: 10.3390/jcm10163677] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/04/2021] [Accepted: 08/13/2021] [Indexed: 02/08/2023] Open
Abstract
The field of acute stroke treatment has made tremendous progress in reducing the overall burden of disability. Understanding the pathophysiology of acute ischemic injury, neuroimaging to quantify the extent of penumbra and infarction, and acute stroke reperfusion therapies have together contributed to these advancements. In this review we highlight advancements in reperfusion therapies for acute ischemic stroke.
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123
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Hung MY, Yang CK, Chen JH, Lin LH, Hsiao HM. Novel Blood Clot Retriever for Ischemic Stroke. MICROMACHINES 2021; 12:mi12080928. [PMID: 34442550 PMCID: PMC8398896 DOI: 10.3390/mi12080928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 07/31/2021] [Accepted: 08/02/2021] [Indexed: 11/23/2022]
Abstract
Stroke is the second leading cause of death in the world. Ischemic stroke, caused by the blockage of intracranial arteries, accounts for approximately 80% of strokes. Among this proportion, acute ischemic stroke, usually caused by the sudden formation of blood clots, can cause fatal blockages in arteries. We proposed a unique blood clot retriever for the treatment of acute ischemic stroke, and conducted a series of tasks, including design, computer simulation, prototyping, and bench testing, for the proof of concept. Unlike most blood clot retrievers used today, our novel design deviates from traditional stent-like blood clot retrievers and uses large closed cells, irregular spikes, and strut protrusions to achieve maximum entanglement for better retrieval performance. Experimental results showed that the retrieval rate of our blood clot retriever was 79%, which demonstrated the feasibility of our new design concept.
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124
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Muddasani V, de Havenon A, McNally JS, Baradaran H, Alexander MD. MR Perfusion in the Evaluation of Mechanical Thrombectomy Candidacy. Top Magn Reson Imaging 2021; 30:197-204. [PMID: 34397969 PMCID: PMC8371677 DOI: 10.1097/rmr.0000000000000277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
ABSTRACT Stroke is a leading cause of disability and mortality, and the incidence of ischemic stroke is projected to continue to rise in coming decades. These projections emphasize the need for improved imaging techniques for accurate diagnosis allowing effective treatments for ischemic stroke. Ischemic stroke is commonly evaluated with computed tomography (CT) or magnetic resonance imaging (MRI). Noncontrast CT is typically used within 4.5 hours of symptom onset to identify candidates for thrombolysis. Beyond this time window, thrombolytic therapy may lead to poor outcomes if patients are not optimally selected using appropriate imaging. MRI provides an accurate method for the earliest identification of core infarct, and MR perfusion can identify salvageable hypoperfused penumbra. The prognostic value for a better outcome in these patients lies in the ability to distinguish between core infarct and salvageable brain at risk-the ischemic penumbra-which is a function of the degree of ischemia and time. Many centers underutilize MRI for acute evaluation of ischemic stroke. This review will illustrate how perfusion-diffusion mismatch calculated from diffusion-weighted MRI and MR perfusion is a reliable approach for patient selection for stroke therapy and can be performed in timeframes that are comparable to CT-based algorithms while providing potentially superior diagnostic information.
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Affiliation(s)
| | - Adam de Havenon
- Department of Neurology, University of Utah, Salt Lake City, UT
| | - J Scott McNally
- Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT
| | - Hediyeh Baradaran
- Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT
| | - Matthew D Alexander
- Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT
- Department of Neurosurgery, University of Utah, Salt Lake City, UT
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125
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Endovascular Thrombectomy Treatment: Beyond Early Time Windows and Small Core. Top Magn Reson Imaging 2021; 30:173-180. [PMID: 34397966 DOI: 10.1097/rmr.0000000000000291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT Tremendous advancements in the treatment of acute ischemic stroke in the last 25 years have been based on the principle of reperfusion in early time windows and identification of small core infarct for intravenous thrombolysis and mechanical thrombectomy. Advances in neuroimaging have made possible the safe treatment of patients with acute ischemic stroke in longer time windows and with more specific selection of patients with salvageable brain tissue. In this review, we discuss the history of endovascular stroke thrombectomy trials and highlight the neuroimaging-based trials that validated mechanical thrombectomy techniques in the extended time window with assessment of penumbral tissue. We conclude with a survey of currently open trials that seek to safely expand eligibility for this highly efficacious treatment.
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126
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Oravec CS, Tschoe C, Fargen KM, Kittel CA, Spiotta A, Almallouhi E, Starke RM, McCarthy DJ, Simon S, Zyck S, Gould GC, De Leacy R, Mocco J, Siddiqui A, Vaziri S, Fox WC, Fraser JF, Chitale R, Zipfel G, Huguenard A, Wolfe SQ. Trends in mechanical thrombectomy and decompressive hemicraniectomy for stroke: A multicenter study. Neuroradiol J 2021; 35:170-176. [PMID: 34269121 DOI: 10.1177/19714009211030526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND AND PURPOSE Acute ischemic stroke has increasingly become a procedural disease following the demonstrated benefit of mechanical thrombectomy (MT) for emergent large vessel occlusion (ELVO) on clinical outcomes and tissue salvage in randomized trials. Given these data and anecdotal experience of decreased numbers of decompressive hemicraniectomies (DHCs) performed for malignant cerebral edema, we sought to correlate the numbers of strokes, thrombectomies, and DHCs performed over the timeline of the 2013 failed thrombolysis/thrombectomy trials, to the 2015 modern randomized MT trials, to post-DAWN and DEFUSE 3. MATERIALS AND METHODS This is a multicenter retrospective compilation of patients who presented with ELVO in 11 US high-volume comprehensive stroke centers. Rates of tissue plasminogen activator (tPA), thrombectomy, and DHC were determined by current procedural terminology code, and specificity to acute ischemic stroke confirmed by each institution. Endpoints included the incidence of stroke, thrombectomy, and DHC and rates of change over time. RESULTS Between 2013 and 2018, there were 55,247 stroke admissions across 11 participating centers. Of these, 6145 received tPA, 4122 underwent thrombectomy, and 662 patients underwent hemicraniectomy. The trajectories of procedure rates over time were modeled and there was a significant change in MT rate (p = 0.002) without a concomitant change in the total number of stroke admissions, tPA administration rate, or rate of DHC. CONCLUSIONS This real-world study confirms an increase in thrombectomy performed for ELVO while demonstrating stable rates of stroke admission, tPA administration and DHC. Unlike prior studies, increasing thrombectomy rates were not associated with decreased utilization of hemicraniectomy.
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Affiliation(s)
- Chesney S Oravec
- Department of Neurosurgery, Wake Forest Baptist Medical Center, USA
| | - Christine Tschoe
- Department of Neurosurgery, Wake Forest Baptist Medical Center, USA
| | - Kyle M Fargen
- Department of Neurosurgery, Wake Forest Baptist Medical Center, USA
| | - Carol A Kittel
- Department of Biostatistics and Data Science, Wake Forest University School of Medicine, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | - Justin F Fraser
- Departments of Neurological Surgery, Neurology, Radiology, and Neuroscience, University of Kentucky, USA
| | | | | | | | - Stacey Q Wolfe
- Department of Neurosurgery, Wake Forest Baptist Medical Center, USA
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127
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Venema E, Roozenbeek B, Mulder MJHL, Brown S, Majoie CBLM, Steyerberg EW, Demchuk AM, Muir KW, Dávalos A, Mitchell PJ, Bracard S, Berkhemer OA, Lycklama À Nijeholt GJ, van Oostenbrugge RJ, Roos YBWEM, van Zwam WH, van der Lugt A, Hill MD, White P, Campbell BCV, Guillemin F, Saver JL, Jovin TG, Goyal M, Dippel DWJ, Lingsma HF. Prediction of Outcome and Endovascular Treatment Benefit: Validation and Update of the MR PREDICTS Decision Tool. Stroke 2021; 52:2764-2772. [PMID: 34266308 PMCID: PMC8378416 DOI: 10.1161/strokeaha.120.032935] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Supplemental Digital Content is available in the text. Background and Purpose: Benefit of early endovascular treatment (EVT) for ischemic stroke varies considerably among patients. The MR PREDICTS decision tool, derived from MR CLEAN (Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands), predicts outcome and treatment benefit based on baseline characteristics. Our aim was to externally validate and update MR PREDICTS with data from international trials and daily clinical practice. Methods: We used individual patient data from 6 randomized controlled trials within the HERMES (Highly Effective Reperfusion Evaluated in Multiple Endovascular Stroke Trials) collaboration to validate the original model. Then, we updated the model and performed a second validation with data from the observational MR CLEAN Registry. Primary outcome was functional independence (defined as modified Rankin Scale score 0–2) 3 months after stroke. Treatment benefit was defined as the difference between the probability of functional independence with and without EVT. Discriminative performance was evaluated using a concordance (C) statistic. Results: We included 1242 patients from HERMES (633 assigned to EVT, 609 assigned to control) and 3156 patients from the MR CLEAN Registry (all of whom underwent EVT within 6.5 hours). The C-statistic for functional independence was 0.74 (95% CI, 0.72–0.77) in HERMES and, after model updating, 0.80 (0.78–0.82) in the Registry. Median predicted treatment benefit of routinely treated patients (Registry) was 10.3% (interquartile range, 5.8%–14.4%). Patients with low (<1%) predicted treatment benefit (n=135/3156 [4.3%]) had low rates of functional independence, irrespective of reperfusion status, suggesting potential absence of treatment benefit. The updated model was made available online for clinicians and researchers at www.mrpredicts.com. Conclusions: Because of the substantial treatment effect and small potential harm of EVT, most patients arriving within 6 hours at an endovascular-capable center should be treated regardless of their clinical characteristics. MR PREDICTS can be used to support clinical judgement when there is uncertainty about the treatment indication, when resources are limited, or before a patient is to be transferred to an endovascular-capable center.
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Affiliation(s)
- Esmee Venema
- Department of Public Health (E.V., E.W.S., H.F.L.), Erasmus MC, University Medical Center Rotterdam, the Netherlands.,Department of Neurology (E.V., B.R., M.J.H.L.M., O.A.B., D.W.J.D.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
| | - Bob Roozenbeek
- Department of Neurology (E.V., B.R., M.J.H.L.M., O.A.B., D.W.J.D.), Erasmus MC, University Medical Center Rotterdam, the Netherlands.,Department of Radiology and Nuclear Medicine (B.R., M.J.H.L.M., O.A.B., A.v.d.L.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
| | - Maxim J H L Mulder
- Department of Neurology (E.V., B.R., M.J.H.L.M., O.A.B., D.W.J.D.), Erasmus MC, University Medical Center Rotterdam, the Netherlands.,Department of Radiology and Nuclear Medicine (B.R., M.J.H.L.M., O.A.B., A.v.d.L.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
| | - Scott Brown
- Altair Biostatistics, St Louis Park, MN (S.B.).,Department of Diagnostic and Interventional Neuroradiology (S.B.), University of Lorraine and University Hospital of Nancy, France
| | - Charles B L M Majoie
- Department of Radiology and Nuclear Medicine (C.B.L.M.M., O.A.B.), Amsterdam University Medical Centers, location AMC, the Netherlands
| | - Ewout W Steyerberg
- Department of Public Health (E.V., E.W.S., H.F.L.), Erasmus MC, University Medical Center Rotterdam, the Netherlands.,Department of Biomedical Data Sciences, Leiden University Medical Center, the Netherlands (E.W.S.)
| | - Andrew M Demchuk
- Departments of Clinical Neuroscience and Radiology, Hotchkiss Brain Institute, Cummings School of Medicine, University of Calgary, Canada (A.M.D., MD.H., M.G.)
| | - Keith W Muir
- Institute of Neuroscience and Psychology, University of Glasgow, Queen Elizabeth University Hospital, United Kingdom (K.W.M.)
| | - Antoni Dávalos
- Department of Neuroscience, Hospital Germans Trias y Pujol, Barcelona, Spain (A.D.)
| | - Peter J Mitchell
- Department of Radiology (P.J.M.), Royal Melbourne Hospital, University of Melbourne, Parkville, Australia
| | | | - Olvert A Berkhemer
- Department of Neurology (E.V., B.R., M.J.H.L.M., O.A.B., D.W.J.D.), Erasmus MC, University Medical Center Rotterdam, the Netherlands.,Department of Radiology and Nuclear Medicine (B.R., M.J.H.L.M., O.A.B., A.v.d.L.), Erasmus MC, University Medical Center Rotterdam, the Netherlands.,Department of Radiology and Nuclear Medicine (C.B.L.M.M., O.A.B.), Amsterdam University Medical Centers, location AMC, the Netherlands
| | | | - Robert J van Oostenbrugge
- Department of Neurology (R.J.v.O.), Maastricht University Medical Center and Cardiovascular Research Institute Maastricht (CARIM), the Netherlands
| | - Yvo B W E M Roos
- Department of Neurology (Y.B.W.E.M.R.), Amsterdam University Medical Centers, location AMC, the Netherlands
| | - Wim H van Zwam
- Department of Radiology (W.H.v.Z.), Maastricht University Medical Center and Cardiovascular Research Institute Maastricht (CARIM), the Netherlands
| | - Aad van der Lugt
- Department of Radiology and Nuclear Medicine (B.R., M.J.H.L.M., O.A.B., A.v.d.L.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
| | - Michael D Hill
- Departments of Clinical Neuroscience and Radiology, Hotchkiss Brain Institute, Cummings School of Medicine, University of Calgary, Canada (A.M.D., MD.H., M.G.)
| | - Philip White
- Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, United Kingdom (P.W.)
| | - Bruce C V Campbell
- Department of Medicine and Neurology, Melbourne Brain Center (B.C.V.C.), Royal Melbourne Hospital, University of Melbourne, Parkville, Australia
| | - Francis Guillemin
- Department of Clinical Epidemiology (F.G.), University of Lorraine and University Hospital of Nancy, France
| | - Jeffrey L Saver
- Department of Neurology and Comprehensive Stroke Center, David Geffen School of Medicine, University of Los Angeles, CA (J.L.S.)
| | - Tudor G Jovin
- Department of Neurology, Stroke Institute, University of Pittsburgh Medical Center Stroke Institute, Presbyterian University Hospital, PA (T.G.J.)
| | - Mayank Goyal
- Departments of Clinical Neuroscience and Radiology, Hotchkiss Brain Institute, Cummings School of Medicine, University of Calgary, Canada (A.M.D., MD.H., M.G.)
| | - Diederik W J Dippel
- Department of Neurology (E.V., B.R., M.J.H.L.M., O.A.B., D.W.J.D.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
| | - Hester F Lingsma
- Department of Public Health (E.V., E.W.S., H.F.L.), Erasmus MC, University Medical Center Rotterdam, the Netherlands
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Akbik F, Xu H, Xian Y, Shah S, Smith EE, Bhatt DL, Matsouaka RA, Fonarow GC, Schwamm LH. Trends in Reperfusion Therapy for In-Hospital Ischemic Stroke in the Endovascular Therapy Era. JAMA Neurol 2021; 77:1486-1495. [PMID: 32955582 DOI: 10.1001/jamaneurol.2020.3362] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Importance A significant proportion of acute ischemic strokes occur while patients are hospitalized. Limited contemporary data exist on the utilization rates of intravenous thrombolysis or endovascular therapy for in-hospital stroke. Objective To use a national registry to examine temporal trends in the use of intravenous and endovascular reperfusion therapies for treatment of in-hospital stroke. Design, Setting, and Participants This retrospective cohort study analyzed data from 267 956 patients who underwent reperfusion therapy for stroke with in-hospital or out-of-hospital onset reported in the Get With the Guidelines-Stroke national registry from January 2008 to September 2018. Exposures In-hospital onset vs out-of-hospital onset of stroke symptoms. Main Outcomes and Measures Temporal trends in the use of reperfusion therapy, process measures of quality, and the association between functional outcomes and key patient characteristics, comorbidities, and treatments. Results Of 67 493 patients with in-hospital stroke onset, this study observed increased rates of vascular risk factors (standardized mean difference >10%) but no significant differences in age or sex in patients undergoing intravenous thrombolysis only (mean [interquartile range {IQR}] age, 72 [80-62] y; 53.2% female) or those undergoing endovascular therapy (mean [IQR] age, 69 [59-79] y; 49.8% female). Of these patients, 10 481 (15.5%) received intravenous thrombolysis and 2494 (3.7%) underwent endovascular therapy. Compared with 2008, in 2018 the proportion of in-hospital stroke among all stroke hospital discharges was higher (3.5% vs 2.7%; P < .001), as was use of intravenous thrombolysis (19.1% vs 9.1%; P < .001) and endovascular therapy (6.4% vs 2.5%; P < .001) in patients with in-hospital stroke, with a significant increase in endovascular therapy in mid-2015 (P < .001). Compared with patients who received intravenous thrombolysis for out-of-hospital stroke onset, those with in-hospital onset were associated with longer median (IQR) times from stroke recognition to cranial imaging (33 [18-60] vs 16 [9-26] minutes; P < .001) and to thrombolysis bolus (81 [52-125] vs 60 [45-84] minutes; P < .001). In adjusted analyses, patients with in-hospital stroke onset who were treated with intravenous thrombolysis were less likely to ambulate independently at discharge (adjusted odds ratio, 0.78; 95% CI, 0.74-0.82; P < .001) and were more likely to die or to be discharged to hospice (adjusted odds ratio, 1.39; 95% CI, 1.29-1.50; P < .001) than patients with out-of-hospital onset who also received intravenous thrombolysis treatment. Comparisons among patients treated with endovascular therapy yielded similar findings. Conclusions and Relevance In this cohort study, in-hospital stroke onset was increasingly reported and treated with reperfusion therapy. Compared with out-of-hospital stroke onset, in-hospital onset was associated with longer delays to reperfusion and worse functional outcomes, highlighting opportunities to further care for patients with in-hospital stroke onset.
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Affiliation(s)
- Feras Akbik
- Department of Neurology, Neurosurgery, Emory University Hospital, Atlanta, Georgia
| | - Haolin Xu
- Duke Clinical Research Institute, Durham, North Carolina
| | - Ying Xian
- Duke Clinical Research Institute, Durham, North Carolina
| | - Shreyansh Shah
- Duke Clinical Research Institute, Durham, North Carolina
| | - Eric E Smith
- Department of Neurology, University of Calgary, Calgary, Alberta, Canada
| | - Deepak L Bhatt
- Brigham and Women's Hospital Heart & Vascular Center.,Harvard Medical School, Boston, Massachusetts
| | - Roland A Matsouaka
- Duke Clinical Research Institute, Durham, North Carolina.,Department of Neurology, Duke University, Durham, North Carolina
| | - Gregg C Fonarow
- Department of Cardiology, University of California, Los Angeles Medical Center, Los Angeles
| | - Lee H Schwamm
- Department of Neurology, Massachusetts General Hospital, Boston
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Mbroh J, Poli K, Tünnerhoff J, Gomez-Exposito A, Wang Y, Bender B, Hempel JM, Hennersdorf F, Feil K, Mengel A, Ziemann U, Poli S. Comparison of Risk Factors, Safety, and Efficacy Outcomes of Mechanical Thrombectomy in Posterior vs. Anterior Circulation Large Vessel Occlusion. Front Neurol 2021; 12:687134. [PMID: 34239498 PMCID: PMC8258169 DOI: 10.3389/fneur.2021.687134] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/14/2021] [Indexed: 12/04/2022] Open
Abstract
Background and Purpose: It is believed that stroke occurring due to posterior circulation large vessel occlusion (PCLVO) and that occurring due to anterior circulation large vessel occlusion (ACLVO) differ in terms of their pathophysiology and the outcome of their acute management in relation to endovascular mechanical thrombectomy (MT). Limited sample size and few randomized controlled trials (RCTs) with respect to PCLVO make the safety and efficacy of MT, which has been confirmed in ACLVO, difficult to assess in the posterior circulation. We therefore conducted a meta-analysis to study to which extent MT in PCLVO differs from ACLVO. Materials and Methods: We searched the databases PubMed, Cochrane, and EMBASE for studies published between 2010 and January 2021, with information on risk factors, safety, and efficacy outcomes of MT in PCLVO vs. ACLVO and conducted a systematic review and meta-analysis; we compared baseline characteristics, reperfusion treatment profiles [including rates of intravenous thrombolysis (IVT) and onset-to-IVT and onset-to-groin puncture times], recanalization success [Thrombolysis In Cerebral Infarction scale (TICI) 2b/3], symptomatic intracranial hemorrhage (sICH), and favorable functional outcome [modified Rankin Score (mRS) 0-2] and mortality at 90 days. Results: Sixteen studies with MT PCLVO (1,172 patients) and ACLVO (7,726 patients) were obtained from the search. The pooled estimates showed higher baseline National Institutes of Health Stroke Scale (NIHSS) score (SMD 0.32, 95% CI 0.15-0.48) in the PCLVO group. PCLVO patients received less often IVT (OR 0.65, 95% CI 0.53-0.79). Onset-to-IVT time (SMD 0.86, 95% CI 0.45-1.26) and onset-to-groin puncture time (SMD 0.59, 95% CI 0.33-0.85) were longer in the PCLVO group. The likelihood of obtaining successful recanalization and favorable functional outcome at 90 days was comparable between the two groups. PCLVO was, however, associated with less sICH (OR 0.56, 95% CI 0.37-0.85) but higher mortality (OR 1.92, 95% CI 1.46-2.53). Conclusions: This meta-analysis indicates that MT in PCLVO may be comparably efficient in obtaining successful recanalization and 90 day favorable functional outcome just as in ACLVO. Less sICH in MT-treated PCLVO patients might be the result of the lower IVT rate in this group. Higher baseline NIHSS and longer onset-to-IVT and onset-to-groin puncture times may have contributed to a higher 90 day mortality in PCLVO patients.
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Affiliation(s)
- Joshua Mbroh
- Department of Neurology & Stroke, Eberhard-Karls University, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Eberhard-Karls University, Tübingen, Germany
| | - Khouloud Poli
- Department of Neurology & Stroke, Eberhard-Karls University, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Eberhard-Karls University, Tübingen, Germany
| | - Johannes Tünnerhoff
- Department of Neurology & Stroke, Eberhard-Karls University, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Eberhard-Karls University, Tübingen, Germany
| | - Alexandra Gomez-Exposito
- Department of Neurology & Stroke, Eberhard-Karls University, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Eberhard-Karls University, Tübingen, Germany
| | - Yi Wang
- Department of Neurology & Stroke, Eberhard-Karls University, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Eberhard-Karls University, Tübingen, Germany
| | - Benjamin Bender
- Department of Neuroradiology, Eberhard-Karls University, Tübingen, Germany
| | | | | | - Katharina Feil
- Department of Neurology & Stroke, Eberhard-Karls University, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Eberhard-Karls University, Tübingen, Germany
| | - Annerose Mengel
- Department of Neurology & Stroke, Eberhard-Karls University, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Eberhard-Karls University, Tübingen, Germany
| | - Ulf Ziemann
- Department of Neurology & Stroke, Eberhard-Karls University, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Eberhard-Karls University, Tübingen, Germany
| | - Sven Poli
- Department of Neurology & Stroke, Eberhard-Karls University, Tübingen, Germany
- Hertie Institute for Clinical Brain Research, Eberhard-Karls University, Tübingen, Germany
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Bageac DV, Gershon BS, De Leacy RA. The Evolution of Devices and Techniques in Endovascular Stroke Therapy. Stroke 2021. [DOI: 10.36255/exonpublications.stroke.devicesandtechniques.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Remote Ischemic Conditioning in Emergency Medicine-Clinical Frontiers and Research Opportunities. Shock 2021; 53:269-276. [PMID: 32045394 DOI: 10.1097/shk.0000000000001362] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Time-critical acute ischemic conditions such as ST-elevation myocardial infarction and acute ischemic stroke are staples in Emergency Medicine practice. While timely reperfusion therapy is a priority, the resultant acute ischemia/reperfusion injury contributes to significant mortality and morbidity. Among therapeutics targeting ischemia/reperfusion injury (IRI), remote ischemic conditioning (RIC) has emerged as the most promising.RIC, which consists of repetitive inflation and deflation of a pneumatic cuff on a limb, was first demonstrated to have protective effect on IRI through various neural and humoral mechanisms. Its attractiveness stems from its simplicity, low-cost, safety, and efficacy, while at the same time it does not impede reperfusion treatment. There is now good evidence for RIC as an effective adjunct to reperfusion in ST-elevation myocardial infarction patients for improving clinical outcomes. For other applications such as acute ischemic stroke, subarachnoid hemorrhage, traumatic brain injury, cardiac arrest, and spinal injury, there is varying level of evidence.This review aims to describe the RIC phenomenon, briefly recount its historical development, and appraise the experimental and clinical evidence for RIC in selected emergency conditions. Finally, it describes the practical issues with RIC clinical application and research in Emergency Medicine.
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Roaldsen MB, Jusufovic M, Berge E, Lindekleiv H. Endovascular thrombectomy and intra-arterial interventions for acute ischaemic stroke. Cochrane Database Syst Rev 2021; 6:CD007574. [PMID: 34125952 PMCID: PMC8203212 DOI: 10.1002/14651858.cd007574.pub3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Most disabling strokes are due to a blockage of a large artery in the brain by a blood clot. Prompt removal of the clot with intra-arterial thrombolytic drugs or mechanical devices, or both, can restore blood flow before major brain damage has occurred, leading to improved recovery. However, these so-called endovascular interventions can cause bleeding in the brain. This is a review of randomised controlled trials of endovascular thrombectomy or intra-arterial thrombolysis, or both, for acute ischaemic stroke. OBJECTIVES To assess whether endovascular thrombectomy or intra-arterial interventions, or both, plus medical treatment are superior to medical treatment alone in people with acute ischaemic stroke. SEARCH METHODS We searched the Trials Registers of the Cochrane Stroke Group and Cochrane Vascular Group (last searched 1 September 2020), CENTRAL (the Cochrane Library, 1 September 2020), MEDLINE (May 2010 to 1 September 2020), and Embase (May 2010 to 1 September 2020). We also searched trials registers, screened reference lists, and contacted researchers. SELECTION CRITERIA Randomised controlled trials (RCTs) of any endovascular intervention plus medical treatment compared with medical treatment alone in people with definite ischaemic stroke. DATA COLLECTION AND ANALYSIS Two review authors (MBR and MJ) applied the inclusion criteria, extracted data, and assessed trial quality. Two review authors (MBR and HL) assessed risk of bias, and the certainty of the evidence using GRADE. We obtained both published and unpublished data if available. Our primary outcome was favourable functional outcome at the end of the scheduled follow-up period, defined as a modified Rankin Scale score of 0 to 2. Eighteen trials (i.e. all but one included trial) reported their outcome at 90 days. Secondary outcomes were death from all causes at in the acute phase and by the end of follow-up, symptomatic intracranial haemorrhage in the acute phase and by the end of follow-up, neurological status at the end of follow-up, and degree of recanalisation. MAIN RESULTS We included 19 studies with a total of 3793 participants. The majority of participants had large artery occlusion in the anterior circulation, and were treated within six hours of symptom onset with endovascular thrombectomy. Treatment increased the chance of achieving a good functional outcome, defined as a modified Rankin Scale score of 0 to 2: risk ratio (RR) 1.50 (95% confidence interval (CI) 1.37 to 1.63; 3715 participants, 18 RCTs; high-certainty evidence). Treatment also reduced the risk of death at end of follow-up: RR 0.85 (95% CI 0.75 to 0.97; 3793 participants, 19 RCTs; high-certainty evidence) without increasing the risk of symptomatic intracranial haemorrhage in the acute phase: RR 1.46 (95% CI 0.91 to 2.36; 1559 participants, 6 RCTs; high-certainty evidence) or by end of follow-up: RR 1.05 (95% CI 0.72 to 1.52; 1752 participants, 10 RCTs; high-certainty evidence); however, the wide confidence intervals preclude any firm conclusion. Neurological recovery to National Institutes of Health Stroke Scale (NIHSS) score 0 to 1 and degree of recanalisation rates were better in the treatment group: RR 2.03 (95% CI 1.21 to 3.40; 334 participants, 3 RCTs; high-certainty evidence) and RR 3.11 (95% CI 2.18 to 4.42; 268 participants, 3 RCTs; high-certainty evidence), respectively. AUTHORS' CONCLUSIONS In individuals with acute ischaemic stroke due to large artery occlusion in the anterior circulation, endovascular thrombectomy can increase the chance of survival with a good functional outcome without increasing the risk of intracerebral haemorrhage or death.
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Affiliation(s)
- Melinda B Roaldsen
- Brain and Circulation Research Group, Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway
- Department of Neurology, University Hospital of North Norway, Tromsø, Norway
| | - Mirza Jusufovic
- Department of Neurology, Oslo University Hospital, Nydalen, Norway
| | - Eivind Berge
- Department of Internal Medicine, Oslo University Hospital, Oslo, Norway
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Diprose WK, Wang MTM, Ghate K, Brew S, Caldwell JR, McGuinness B, Barber PA. Adjunctive Intra-arterial Thrombolysis in Endovascular Thrombectomy: A Systematic Review and Meta-analysis. Neurology 2021; 96:1135-1143. [PMID: 33931539 DOI: 10.1212/wnl.0000000000012112] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 03/10/2021] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To evaluate the safety and efficacy of intra-arterial thrombolysis (IAT) as an adjunct to endovascular thrombectomy (EVT) in ischemic stroke, we performed a systematic review and meta-analysis of the literature. METHODS Searches were performed using MEDLINE, Embase, and Cochrane databases for studies that compared EVT with EVT with adjunctive IAT (EVT + IAT). Safety outcomes included symptomatic intracerebral hemorrhage and mortality at 3 months. Efficacy outcomes included successful reperfusion (Thrombolysis in Cerebral Infarction score of 2b-3) and functional independence, defined as a modified Rankin Scale score of 0-2 at 3 months. RESULTS Five studies were identified that compared combined EVT + IAT (IA alteplase or urokinase) with EVT only and were included in the random-effects meta-analysis. There were 1693 EVT patients, including 269 patients treated with combined EVT + IAT and 1,424 patients receiving EVT only. Pooled analysis did not demonstrate any differences between EVT + IAT and EVT only in rates of symptomatic intracerebral hemorrhage (odds ratio [OR]: 0.61, 95% confidence interval [CI]: 0.20-1.85; p = 0.78), mortality (OR: 0.77, 95% CI: 0.54-1.10; p = 0.15), or successful reperfusion (OR: 1.05, 95% CI: 0.52-2.15; p = 0.89). There was a higher rate of functional independence in patients treated with EVT + IAT, although this was not statistically significant (OR: 1.34, 95% CI: 1.00-1.80; p = 0.053). CONCLUSION Adjunctive IAT appears to be safe. In specific situations, neurointerventionists may be justified in administering small doses of intra-arterial alteplase or urokinase as rescue therapy during EVT.
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Affiliation(s)
- William K Diprose
- From the Department of Neurology (W.K.D., K.G.), Auckland City Hospital; Department of Medicine (M.T.M.W., P.A.B.), University of Auckland; and Department of Radiology (S.B., J.R.C., B.M.), Auckland City Hospital, New Zealand
| | - Michael T M Wang
- From the Department of Neurology (W.K.D., K.G.), Auckland City Hospital; Department of Medicine (M.T.M.W., P.A.B.), University of Auckland; and Department of Radiology (S.B., J.R.C., B.M.), Auckland City Hospital, New Zealand
| | - Kaustubha Ghate
- From the Department of Neurology (W.K.D., K.G.), Auckland City Hospital; Department of Medicine (M.T.M.W., P.A.B.), University of Auckland; and Department of Radiology (S.B., J.R.C., B.M.), Auckland City Hospital, New Zealand
| | - Stefan Brew
- From the Department of Neurology (W.K.D., K.G.), Auckland City Hospital; Department of Medicine (M.T.M.W., P.A.B.), University of Auckland; and Department of Radiology (S.B., J.R.C., B.M.), Auckland City Hospital, New Zealand
| | - James R Caldwell
- From the Department of Neurology (W.K.D., K.G.), Auckland City Hospital; Department of Medicine (M.T.M.W., P.A.B.), University of Auckland; and Department of Radiology (S.B., J.R.C., B.M.), Auckland City Hospital, New Zealand
| | - Ben McGuinness
- From the Department of Neurology (W.K.D., K.G.), Auckland City Hospital; Department of Medicine (M.T.M.W., P.A.B.), University of Auckland; and Department of Radiology (S.B., J.R.C., B.M.), Auckland City Hospital, New Zealand
| | - P Alan Barber
- From the Department of Neurology (W.K.D., K.G.), Auckland City Hospital; Department of Medicine (M.T.M.W., P.A.B.), University of Auckland; and Department of Radiology (S.B., J.R.C., B.M.), Auckland City Hospital, New Zealand.
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Magoufis G, Safouris A, Raphaeli G, Kargiotis O, Psychogios K, Krogias C, Palaiodimou L, Spiliopoulos S, Polizogopoulou E, Mantatzis M, Finitsis S, Karapanayiotides T, Ellul J, Bakola E, Brountzos E, Mitsias P, Giannopoulos S, Tsivgoulis G. Acute reperfusion therapies for acute ischemic stroke patients with unknown time of symptom onset or in extended time windows: an individualized approach. Ther Adv Neurol Disord 2021; 14:17562864211021182. [PMID: 34122624 PMCID: PMC8175833 DOI: 10.1177/17562864211021182] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 05/10/2021] [Indexed: 02/05/2023] Open
Abstract
Recent randomized controlled clinical trials (RCTs) have revolutionized acute ischemic stroke care by extending the use of intravenous thrombolysis and endovascular reperfusion therapies in time windows that have been originally considered futile or even unsafe. Both systemic and endovascular reperfusion therapies have been shown to improve outcome in patients with wake-up strokes or symptom onset beyond 4.5 h for intravenous thrombolysis and beyond 6 h for endovascular treatment; however, they require advanced neuroimaging to select stroke patients safely. Experts have proposed simpler imaging algorithms but high-quality data on safety and efficacy are currently missing. RCTs used diverse imaging and clinical inclusion criteria for patient selection during the dawn of this novel stroke treatment paradigm. After taking into consideration the dismal prognosis of nonrecanalized ischemic stroke patients and the substantial clinical benefit of reperfusion therapies in selected late presenters, we propose rescue reperfusion therapies for acute ischemic stroke patients not fulfilling all clinical and imaging inclusion criteria as an option in a subgroup of patients with clinical and radiological profiles suggesting low risk for complications, notably hemorrhagic transformation as well as local or remote parenchymal hemorrhage. Incorporating new data to treatment algorithms may seem perplexing to stroke physicians, since treatment and imaging capabilities of each stroke center may dictate diverse treatment pathways. This narrative review will summarize current data that will assist clinicians in the selection of those late presenters that will most likely benefit from acute reperfusion therapies. Different treatment algorithms are provided according to available neuroimaging and endovascular treatment capabilities.
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Affiliation(s)
- Georgios Magoufis
- Interventional Neuroradiology Unit, Metropolitan Hospital, Piraeus, Greece
| | - Apostolos Safouris
- Stroke Unit, Metropolitan Hospital, Piraeus, Greece
- Interventional Neuroradiology Unit, Rabin Medical Center, Beilinson Hospital, Petach-Tikva, Israel
- Second Department of Neurology, National & Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
| | - Guy Raphaeli
- Interventional Neuroradiology Unit, Rabin Medical Center, Beilinson Hospital, Petach-Tikva, Israel
| | | | - Klearchos Psychogios
- Stroke Unit, Metropolitan Hospital, Piraeus, Greece
- Second Department of Neurology, National & Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
| | - Christos Krogias
- Department of Neurology, St. Josef-Hospital, Ruhr University Bochum, Bochum, Germany
| | - Lina Palaiodimou
- Second Department of Neurology, National & Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
| | - Stavros Spiliopoulos
- Second Department of Radiology, Interventional Radiology Unit, “ATTIKON” University General Hospital, Athens, Greece
| | - Eftihia Polizogopoulou
- Emergency Medicine Clinic, National & Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
| | - Michael Mantatzis
- Department of Radiology, University Hospital of Alexandroupolis, Democritus University of Thrace, School of Medicine, Alexandroupolis, Greece
| | - Stephanos Finitsis
- Department of Interventional Radiology, AHEPA University General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Theodore Karapanayiotides
- Second Department of Neurology, Aristotle University of Thessaloniki, School of Medicine, Faculty of Health Sciences, AHEPA University Hospital, Thessaloniki, Greece
| | - John Ellul
- Department of Neurology, University Hospital of Patras, School of Medicine, University of Patras, Patras, Greece
| | - Eleni Bakola
- Second Department of Neurology, National & Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
| | - Elias Brountzos
- Second Department of Radiology, Interventional Radiology Unit, “ATTIKON” University General Hospital, Athens, Greece
| | - Panayiotis Mitsias
- Department of Neurology Medical School, University of Crete, Heraklion, Crete, Greece
| | - Sotirios Giannopoulos
- Second Department of Neurology, National & Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital, Athens, Greece
| | - Georgios Tsivgoulis
- Second Department of Neurology, National & Kapodistrian, University of Athens, School of Medicine, “Attikon” University Hospital, Iras 39, Gerakas Attikis, Athens, 15344, Greece
- Department of Neurology, The University of Tennessee Health Science Center, Memphis, TN, USA
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Strong B, Pudar J, Thrift AG, Howard VJ, Hussain M, Carcel C, de Los Campos G, Reeves MJ. Sex Disparities in Enrollment in Recent Randomized Clinical Trials of Acute Stroke: A Meta-analysis. JAMA Neurol 2021; 78:666-677. [PMID: 33900363 DOI: 10.1001/jamaneurol.2021.0873] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Importance The underenrollment of women in randomized clinical trials represents a threat to the validity of the evidence supporting clinical guidelines and potential disparities in access to novel treatments. Objective To determine whether women were underenrolled in contemporary randomized clinical trials of acute stroke therapies published in 9 major journals after accounting for their representation in underlying stroke populations. Data Sources MEDLINE was searched for acute stroke therapeutic trials published between January 1, 2010, and June 11, 2020. Study Selection Eligible articles reported the results of a phase 2 or 3 randomized clinical trial that enrolled patients with stroke and/or transient ischemic attack and examined a therapeutic intervention initiated within 1 month of onset. Data Extraction Data extraction was performed by 2 independent authors in duplicate. Individual trials were matched to estimates of the proportion of women in underlying stroke populations using the Global Burden of Disease database. Main Outcomes and Measures The primary outcome was the enrollment disparity difference (EDD), the absolute difference between the proportion of trial participants who were women and the proportion of strokes in the underlying disease populations that occurred in women. Random-effects meta-analyses of the EDD were performed, and multivariable metaregression was used to explore the associations of trial eligibility criteria with disparity estimates. Results The search returned 1529 results, and 115 trials (7.5%) met inclusion criteria. Of 121 105 randomized patients for whom sex was reported, 52 522 (43.4%) were women. The random-effects summary EDD was -0.053 (95% CI, -0.065 to -0.040), indicating that women were underenrolled by 5.3 percentage points. This disparity persisted across virtually all geographic regions, intervention types, and stroke types, apart from subarachnoid hemorrhage (0.117 [95% CI, 0.084 to 0.150]). When subarachnoid hemorrhage trials were excluded, the summary EDD was -0.067 (95% CI, -0.078 to -0.057). In the multivariable metaregression analysis, an upper age limit of 80 years as an eligibility criterion was associated with a 6-percentage point decrease in the enrollment of women. Conclusions and Relevance Further research is needed to understand the causes of the underenrollment of women in acute stroke trials. However, to maximize representation, investigators should avoid imposing age limits on enrollment.
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Affiliation(s)
- Brent Strong
- Department of Epidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing
| | - Julia Pudar
- Department of Epidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing
| | - Amanda G Thrift
- Stroke and Ageing Research, Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Melbourne, Australia
| | - Virginia J Howard
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham
| | - Murtaza Hussain
- Department of Epidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing
| | - Cheryl Carcel
- George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Gustavo de Los Campos
- Department of Epidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing
| | - Mathew J Reeves
- Department of Epidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing
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Abstract
BACKGROUND Over the past 2 decades, a growing number of large-scale clinical trials have helped expand the toolkit for emergency management of acute ischemic stroke. This article is intended to be an up-to-date resource to aid nonstroke specialist neurology providers and ophthalmologists in identifying situations and patient populations in which urgent stroke evaluation should be completed with options for emergent reperfusion therapy considered. EVIDENCE ACQUISITION The literature forming the foundation of the guidelines for early management of patients with acute ischemic stroke was reviewed, annotated, and summarized. RESULTS Data from both initial and follow-up trials investigating the benefits and indications for use of intravenous thrombolysis and endovascular intervention for stroke are reviewed systematically, with an emphasis on new updates to qualifying patient populations and time periods for treatment. CONCLUSIONS Recent studies underscore the conclusion that timely reperfusion in acute ischemic stroke is the most effective available treatment and that there are a growing number of new scenarios and patients for which interventions maybe applied.
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137
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Nardai S, Lanzer P, Abelson M, Baumbach A, Doehner W, Hopkins LN, Kovac J, Meuwissen M, Roffi M, Sievert H, Skrypnik D, Sulzenko J, van Zwam W, Gruber A, Ribo M, Cognard C, Szikora I, Flodmark O, Widimsky P. Interdisciplinary management of acute ischaemic stroke: Current evidence training requirements for endovascular stroke treatment. Position Paper from the ESC Council on Stroke and the European Association for Percutaneous Cardiovascular Interventions with the support of the European Board of Neurointervention. Eur Heart J 2021; 42:298-307. [PMID: 33521827 DOI: 10.1093/eurheartj/ehaa833] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/07/2020] [Accepted: 09/23/2020] [Indexed: 11/15/2022] Open
Abstract
This ESC Council on Stroke/EAPCI/EBNI position paper summarizes recommendations for training of cardiologists in endovascular treatment of acute ischaemic stroke. Interventional cardiologists adequately trained to perform endovascular stroke interventions could complement stroke teams to provide the 24/7 on call duty and thus to increase timely access of stroke patients to endovascular treatment. The training requirements for interventional cardiologists to perform endovascular therapy are described in details and should be based on two main principles: (i) patient safety cannot be compromised, (ii) proper training of interventional cardiologists should be under supervision of and guaranteed by a qualified neurointerventionist and within the setting of a stroke team. Interdisciplinary cooperation based on common standards and professional consensus is the key to the quality improvement in stroke treatment.
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Affiliation(s)
- Sandor Nardai
- Department Section of Neurointervention, National Institute of Clinical Neurosciences, Semmelweis University Heart and Vascular Center and Semmelweis University, Budapest, Hungary
| | - Peter Lanzer
- Mitteldeutsches Herzzentrum, Standort Bitterfeld-Wolfen, Germany
| | - Mark Abelson
- Vergelegen MediClinic, Somerset West, University of Cape Town, South Africa
| | - Andreas Baumbach
- Centre for Cardiovascular Medicine and Devices, William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Wolfram Doehner
- Berlin Institute of Health Center for Regenerative Therapies (BCRT), and Department of Cardiology (Virchow Klinikum), German Centre for Cardiovascular Research (DZHK), Partner Site Berlin, and Center for Stroke Research Berlin, Charité Universitätsmedizin Berlin, Germany
| | - L Nelson Hopkins
- Gates Vascular Institute and Jacobs Institute, Neurosurgery and Radiology, University at Buffalo, USA
| | - Jan Kovac
- University Hospitals of Leicester NHS Trust, Leicester, UK
| | | | - Marco Roffi
- Division of cardiology, University Hospitals, Geneva, Switzerland
| | - Horst Sievert
- CardioVascular Center Frankfurt, Germany and Anglia Ruskin University, Chelmsford, UK
| | - Dmitry Skrypnik
- Department of Interventional Cardiology, Moscow Hospital I. Davydovsky and Moscow State University of Medicine and Dentistry, Russian Federation
| | - Jakub Sulzenko
- Cardiocenter, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Wim van Zwam
- Department of Radiology and Nuclear Medicin, Academic Hospital of Maastricht, Maastricht, The Netherlands
| | - Andreas Gruber
- Universitätsklinik für Neurochirurgie, Kepler Universitäts Klinikum, Linz, Austria
| | - Marc Ribo
- Department of Neurology, Hospital Wall d'Hebron, Barcelona, Spain
| | - Christophe Cognard
- Department of Diagnostic and Therapeutic Neuroradiology Hôpital Purpan, Toulouse, France
| | - Istvan Szikora
- Department Section of Neurointervention, National Institute of Clinical Neurosciences, Semmelweis University, Budapest, Hungary
| | - Olof Flodmark
- Department of Neuroradiology, Karolinska University Hospital, Stockholm, Sweden
| | - Petr Widimsky
- Cardiocenter, Third Faculty of Medicine, Charles University, Prague, Czech Republic
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138
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Kappelhof M, Ospel J, Kashani N, Cimflova P, Singh N, Almekhlafi MA, Menon BK, Fiehler J, Chen M, Sakai N, Goyal M. Influence of intravenous alteplase on endovascular treatment decision-making in acute ischemic stroke due to primary medium-vessel occlusion: a case-based survey study. J Neurointerv Surg 2021; 14:neurintsurg-2021-017471. [PMID: 34035152 PMCID: PMC9016248 DOI: 10.1136/neurintsurg-2021-017471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/22/2021] [Accepted: 04/27/2021] [Indexed: 12/13/2022]
Abstract
Background Intravenous alteplase is currently the only evidence-based treatment for medium-vessel occlusion stroke (MeVO; M2/3, A2/3, and P2/3 vessel segment occlusions), but due to its limited efficacy, endovascular treatment (EVT) is increasingly performed in these patients. In this case-based survey study, we examined the influence of intravenous alteplase treatment on physicians’ decision-making for EVT in primary MeVO stroke. Methods In an international web-based survey among physicians involved in acute stroke care, participants provided their EVT decision for six quasi-identical fictional MeVO case scenarios (three with and without intravenous alteplase administered). Each scenario showed radiological images and clinical information in the form of a short case vignette. We compared EVT decisions (“immediate EVT”, “no EVT”, or “wait for alteplase effect” [in case scenarios with alteplase treatment only]) for case scenarios with and without alteplase treatment. Clustered multivariable logistic regression was performed to assess the effect of alteplase on treatment decision. Results The survey was completed by 366 physicians from 44 countries, resulting in 2196 responses included in this study. In alteplase-treated cases, 641/1098 (58.4%) responses favored immediate EVT, (279/1098 [25.4%]) favored no EVT and 178/1098 (16.2%) opted to wait for alteplase effect. In non-alteplase-treated case scenarios, 846/1098 (78.7%) were in favor of and 252/1098 (21.3%) against EVT. Intravenous alteplase was associated with a lower chance of a decision in favor of immediate EVT (adjusted OR 0.38 [95%CI 0.31 to 0.46]). Conclusions Intravenous alteplase is an important factor in EVT decision-making for MeVO stroke. However, even in alteplase-treated patients, more than half of the physicians decided to proceed with EVT without waiting for alteplase effect.
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Affiliation(s)
- Manon Kappelhof
- Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands .,Diagnostic Imaging, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Johanna Ospel
- Diagnostic Imaging, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada.,Radiology, University Hospital Basel, Basel, Switzerland
| | - Nima Kashani
- Diagnostic Imaging, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Petra Cimflova
- Clinical Neurosciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Nishita Singh
- Clinical Neurosciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Mohammed A Almekhlafi
- Clinical Neurosciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Bijoy K Menon
- Clinical Neurosciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Jens Fiehler
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Hamburg, Germany
| | - Michael Chen
- Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - Nobuyuki Sakai
- Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan
| | - Mayank Goyal
- Diagnostic Imaging, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada.,Clinical Neurosciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
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139
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Abstract
OBJECTIVES Acute ischemic stroke patients are at risk of acute kidney injury due to volume depletion, contrast exposure, and preexisting comorbid diseases. We determined the occurrence rate and identified predictors associated with acute kidney injury in acute ischemic stroke patients. SETTING Multiple specialized ICUs within academic medical centers. DESIGN Post hoc analysis of pooled data from prospective randomized clinical trials. PATIENTS Acute ischemic stroke patients recruited within 3 hours or within 5 hours of symptom onset. INTERVENTIONS IV recombinant tissue plasminogen activator, endovascular treatment, IV albumin, or placebo. MEASUREMENTS AND MAIN RESULTS Serum creatinine levels from baseline and within day 5 or discharge were used to classify acute kidney injury classification into stages. Any increase in serum creatinine was seen in 697 (36.1%) and acute kidney injury was seen in 68 (3.5%) of 1,931 patients with acute ischemic stroke. Severity of acute kidney injury was grade I, II, and III in 3.1%, 0.4%, and 0.05% patients, respectively. Patients with albumin (5.5% compared with 2.6%; p = 0.001), preexisting hypertension (4.3% compared with 1.5%; p = 0.0041), and preexisting renal disease (9.1% compared with 3.0%; p < 0.0001) had higher risk of acute kidney injury. The risk of acute kidney injury was lower between those who either underwent CT angiography (2.0% compared with 4.7%; p = 0.0017) or endovascular treatment (1.6% compared with 4.2%; p = 0.0071). In the multivariate analysis, hypertension (odds ratio, 2.6; 95% CI, 1.2-5.6) and renal disease (odds ratio, 3.5; 95% CI, 1.9-6.5) were associated with acute kidney injury. The risk of death was significantly higher among patients with acute kidney injury (odds ratio, 2.7; 95% CI, 1.4-4.9) after adjusting for age and National Institutes of Health Stroke Scale score strata. CONCLUSIONS The occurrence rate of acute kidney injury in acute ischemic stroke patients was low and was not higher in patients who underwent CT angiogram or those who received endovascular treatment. Occurrence of acute kidney injury increased the risk of death within 3 months among acute ischemic stroke patients.
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140
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Abstract
Objectives: Concise “synthetic” review of the state of the art of management of acute ischemic stroke. Data Sources: Available literature on PubMed. Study Selection: We selected landmark studies, recent clinical trials, observational studies, and professional guidelines on the management of stroke including the last 10 years. Data Extraction: Eligible studies were identified and results leading to guideline recommendations were summarized. Data Synthesis: Stroke mortality has been declining over the past 6 decades, and as a result, stroke has fallen from the second to the fifth leading cause of death in the United States. This trend may follow recent advances in the management of stroke, which highlight the importance of early recognition and early revascularization. Recent studies have shown that early recognition, emergency interventional treatment of acute ischemic stroke, and treatment in dedicated stroke centers can significantly reduce stroke-related morbidity and mortality. However, stroke remains the second leading cause of death worldwide and the number one cause for acquired long-term disability, resulting in a global annual economic burden. Conclusions: Appropriate treatment of ischemic stroke is essential in the reduction of mortality and morbidity. Management of stroke involves a multidisciplinary approach that starts and extends beyond hospital admission.
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141
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Long-Term Mortality Among ICU Patients With Stroke Compared With Other Critically Ill Patients. Crit Care Med 2021; 48:e876-e883. [PMID: 32931193 DOI: 10.1097/ccm.0000000000004492] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Assessment of all-cause mortality of intracerebral hemorrhage and ischemic stroke patients admitted to the ICU and comparison to the mortality of other critically ill ICU patients classified into six other diagnostic subgroups and the general Dutch population. DESIGN Observational cohort study. SETTING All ICUs participating in the Dutch National Intensive Care Evaluation database. PATIENTS All adult patients admitted to these ICUs between 2010 and 2015; patients were followed until February 2017. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Of all 370,386 included ICU patients, 7,046 (1.9%) were stroke patients, 4,072 with ischemic stroke, and 2,974 with intracerebral hemorrhage. Short-term mortality in ICU-admitted stroke patients was high with 30 days mortality of 31% in ischemic stroke and 42% in intracerebral hemorrhage. In the longer term, the survival curve gradient among ischemic stroke and intracerebral hemorrhage patients stabilized. The gradual alteration of mortality risk after ICU admission was assessed using left-truncation with increasing minimum survival period. ICU-admitted stroke patients who survive the first 30 days after suffering from a stroke had a favorable subsequent survival compared with other diseases necessitating ICU admission such as patients admitted due to sepsis or severe community-acquired pneumonia. After having survived the first 3 months after ICU admission, multivariable Cox regression analyses showed that case-mix adjusted hazard ratios during the follow-up period of up to 3 years were lower in ischemic stroke compared with sepsis (adjusted hazard ratio, 1.21; 95% CI, 1.06-1.36) and severe community-acquired pneumonia (adjusted hazard ratio, 1.57; 95% CI, 1.39-1.77) and in intracerebral hemorrhage patients compared with these groups (adjusted hazard ratio, 1.14; 95% CI, 0.98-1.33 and adjusted hazard ratio, 1.49; 95% CI, 1.28-1.73). CONCLUSIONS Stroke patients who need intensive care treatment have a high short-term mortality risk, but this alters favorably with increasing duration of survival time after ICU admission in patients with both ischemic stroke and intracerebral hemorrhage, especially compared with other populations of critically ill patients such as sepsis or severe community-acquired pneumonia patients.
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142
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Imura T, Iwamoto Y, Azuma Y, Inagawa T, Imada N, Tanaka R, Araki H, Araki O. Machine Learning Algorithm Identifies the Importance of Environmental Factors for Hospital Discharge to Home of Stroke Patients using Wheelchair after Discharge. J Stroke Cerebrovasc Dis 2021; 30:105868. [PMID: 34029887 DOI: 10.1016/j.jstrokecerebrovasdis.2021.105868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/25/2021] [Accepted: 04/29/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND AND PURPOSE Physical environmental factors are generally likely to become barriers for discharge to home of wheelchair users, compared with non-wheelchair users. However, the importance of environmental factors has not been investigated adequately. Application of machine learning technology might efficiently identify the most influential factors, although it is not easy to interpret and integrate various information including individual and environmental factors in clinical stroke rehabilitation. This study aimed to identify the influential factors affecting home discharge in the stroke patients who use a wheelchair after discharge by using machine learning technology. METHODS This study used the rehabilitation database of our facility, which includes all stroke patients admitted into the convalescence rehabilitation ward. The chi-squared automatic interaction detection (CHAID) algorithm was used to develop a model to classify wheelchair-using stroke patients discharged to home or not-to-home. RESULTS Among the variables, including basic information, motor functional factor, activities of daily living ability factor, and environmental factors, the CHAID model identified house renovation and the existence of sloping roads around the house as the first and second discriminators for home discharge. CONCLUSIONS Our present results could scientifically clarify that the clinician need to focus on the physical environmental factors for achieving home discharge in the patients who use a wheelchair after discharge.
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Affiliation(s)
- Takeshi Imura
- Department of Rehabilitation, Faculty of Health Sciences, Hiroshima Cosmopolitan University, Hiroshima, Japan; Department of Rehabilitation, Araki Neurosurgical Hospital, Hiroshima, Japan.
| | - Yuji Iwamoto
- Department of Rehabilitation, Araki Neurosurgical Hospital, Hiroshima, Japan; Graduate School of Humanities and Social Sciences, Hiroshima University, Hiroshima, Japan
| | - Yuki Azuma
- Department of Rehabilitation, Araki Neurosurgical Hospital, Hiroshima, Japan
| | - Tetsuji Inagawa
- Department of Neurosurgery, Araki Neurosurgical Hospital, Hiroshima, Japan
| | - Naoki Imada
- Department of Rehabilitation, Araki Neurosurgical Hospital, Hiroshima, Japan
| | - Ryo Tanaka
- Graduate School of Humanities and Social Sciences, Hiroshima University, Hiroshima, Japan
| | - Hayato Araki
- Department of Neurosurgery, Araki Neurosurgical Hospital, Hiroshima, Japan
| | - Osamu Araki
- Department of Neurosurgery, Araki Neurosurgical Hospital, Hiroshima, Japan
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143
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Mistry EA, Yeatts S, de Havenon A, Mehta T, Arora N, De Los Rios La Rosa F, Starosciak AK, Siegler JE, Mistry AM, Yaghi S, Khatri P. Predicting 90-Day Outcome After Thrombectomy: Baseline-Adjusted 24-Hour NIHSS Is More Powerful Than NIHSS Score Change. Stroke 2021; 52:2547-2553. [PMID: 34000830 DOI: 10.1161/strokeaha.120.032487] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE The National Institutes of Health Stroke Scale (NIHSS) measured at an early time point is an appealing surrogate marker for long-term functional outcome of stroke patients treated with endovascular therapy. However, definitions and analytical methods for an early NIHSS-based outcome measure that optimize power and precision in clinical studies are not well-established. METHODS In this post-hoc analysis of our prospective observational study that enrolled endovascular therapy-treated patients at 12 comprehensive stroke centers across the US, we compared the ability of 24-hour NIHSS, ΔNIHSS (baseline minus 24-hour NIHSS), and percentage change (NIHSS×100/baseline NIHSS), analyzed as continuous and dichotomous measures, to predict 90-day modified Rankin Scale (mRS) using logistic regression (adjusted for age, baseline NIHSS, glucose, hypertension, Alberta Stroke Program Early CT Score, time to recanalization, recanalization status, and intravenous thrombolysis) and Spearman ρ. RESULTS Of 485 patients in the BEST (Blood Pressure After Endovascular Stroke Therapy) cohort, 446 (92%) with 90-day follow-up data were included. An absolute 24-hour NIHSS, adjusted for baseline in multivariable modeling, had the highest predictive power of all definitions evaluated (aR2 0.368 and adjusted odds ratio 0.79 [0.75-0.84], P<0.001 for mRS score 0-2; aR2 0.444 and adjusted odds ratio 0.84 [0.8-0.86] for ordinal mRS). For predicting mRS score of 0-2 with a cut point, the second most efficient approach, the optimal threshold for 24-hour NIHSS score was ≤7 (sensitivity 80.1%, specificity 80.4%; adjusted odds ratio 12.5 [7.14-20], P<0.001), followed by percent change in NIHSS (sensitivity 79%, specificity 58.5%; adjusted odds ratio 4.55 [2.85-7.69], P<0.001). CONCLUSIONS Twenty-four-hour NIHSS, adjusted for baseline, was the strongest predictor of both dichotomous and ordinal 90-day mRS outcomes for endovascular therapy-treated patients. A dichotomous 24-hour NIHSS score of ≤7 was the second-best predictor. Although ΔNIHSS, continuous and dichotomized at ≥4, predicted 90-day outcomes, absolute 24-hour NIHSS definitions performed better.
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Affiliation(s)
- Eva A Mistry
- Department of Neurology (E.A.M.), Vanderbilt University Medical Center, Nashville, TN
| | - Sharon Yeatts
- Public Health Sciences, Medical University of South Carolina, Charleston (S.Y.)
| | | | - Tapan Mehta
- Ayer Neuroscience Institute, Hartford HealthCare, CT (T.M.)
| | - Niraj Arora
- Department of Neurology, University of Missouri, Columbia (N.A.)
| | | | - Amy K Starosciak
- Baptist Health Neuroscience Center, Miami, FL (F.D.L.R.L.R., A.K.S.)
| | - James E Siegler
- Department of Neurology, Cooper University Hospital, Camden, NJ (J.E.S.)
| | - Akshitkumar M Mistry
- Department of Neurosurgery (A.M.M.), Vanderbilt University Medical Center, Nashville, TN
| | - Shadi Yaghi
- Department of Neurology, New York Langone Health (S.Y.)
| | - Pooja Khatri
- Department of Neurology and Rehabilitation Medicine, University of Cincinnati, OH (P.K.)
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Abstract
This article aims to provide a comprehensive overview of key advances on various aspects of hyper-acute management of acute ischaemic stroke. These include neuroimaging, acute stroke unit care, management of blood pressure, reperfusion therapy including intravenous thrombolysis, mechanical thrombectomy and decompressive hemicraniectomy for malignant stroke syndrome. The challenge ahead is to ensure these evidence-based treatments are now being delivered and implemented to maximise the benefits across the population.
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Affiliation(s)
| | | | - Jonathan Birns
- St Thomas' Hospital, London, UK and deputy head of School of Medicine, Health Education England, London, UK
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145
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Maegerlein C, Boeckh-Behrens T, Wunderlich S, Gerber J, Pallesen LP, Puetz V. [Endovascular treatment of acute basilar artery occlusions]. DER NERVENARZT 2021; 92:752-761. [PMID: 33938960 DOI: 10.1007/s00115-021-01123-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/06/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Since the publication of the large randomized controlled thrombectomy trials, endovascular treatment (EVT) has become the standard of care for acute stroke patients with anterior circulation large vessel occlusion (acLVO); however, the treatment of patients with an intracranial occlusion in the posterior circulation and in particular of the basilar artery has not been proven. Thus, there is uncertainty regarding the indications for EVT due to the poor evidence situation. OBJECTIVE This review article addresses the current data on EVT in the posterior circulation and the most recent study results. Furthermore, the pathophysiological aspects, indications and specific features in the treatment of these patients are also discussed. RESULTS Despite limited evidence for EVT, this treatment modality has gained significant clinical relevance for the treatment of stroke patients with vascular occlusions in the posterior circulation. From a technical point of view, vascular occlusions in the posterior circulation and particularly of the basilar artery are easily accessible, although the etiology of occlusions and necessary techniques differ compared to occlusions in the anterior circulation. CONCLUSION Compared to acLVO, EVT in the posterior circulation differs with respect to the current evidence, indications and technique. As current data have not proven its effectiveness for improved clinical outcome, treatment decisions must still be made individually based on institutional protocols, particularly for patients in the late time window or for patients already with signs of extensive infarction on baseline imaging.
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Affiliation(s)
- Christian Maegerlein
- Abteilung für Diagnostische und Interventionelle Neuroradiologie, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland.
| | - Tobias Boeckh-Behrens
- Abteilung für Diagnostische und Interventionelle Neuroradiologie, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland
| | - Silke Wunderlich
- Klinik und Poliklinik für Neurologie, Klinikum rechts der Isar, Technische Universität München, München, Deutschland
| | - Johannes Gerber
- Institut und Poliklinik für diagnostische und interventionelle Neuroradiologie, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Dresden, Deutschland
| | - Lars-Peder Pallesen
- Klinik und Poliklinik für Neurologie, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Dresden, Deutschland
| | - Volker Puetz
- Klinik und Poliklinik für Neurologie, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Dresden, Deutschland
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146
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Hou J, Sun Y, Duan Y, Zhang L, Xing D, Lee X, Yang B. Hyperdense middle cerebral artery sign in large cerebral infarction. Brain Behav 2021; 11:e02116. [PMID: 33764692 PMCID: PMC8119806 DOI: 10.1002/brb3.2116] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/23/2021] [Accepted: 03/03/2021] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVES To evaluate if the hyperdense middle cerebral artery sign (HMCAS) is an imaging biomarker for hemorrhagic transformation (HT) and the functional outcome of patients with large cerebral infarctions without thrombolytic therapy. MATERIALS AND METHODS The clinical and imaging data of 312 patients with large cerebral infarction without thrombolytic therapy were retrospectively analyzed. They were divided into patients who presented with HMCAS (n = 121) and those who did not (non-HMCAS[n = 168] patients), and the clinical data of the 2 groups were compared. This was a retrospective study. RESULTS Of the 289 patients, 83(28.7%) developed HT. The incidence of atrial fibrillation, high homocysteine and admission NIHSS score at the time of admission was significantly higher in the HMCAS patients than in non-HMCAS patients (p < .05). The ASPECTS was significantly lower in HMCAS patients (t = -5.835, p < .001). The incidence of PH-2 and 3-month mRS score was also statistically significant higher in HMCAS patients (χ2 = 3.971, p = .046; χ2 = 5.653, p < .001, respectively). A sub-analysis showed HMCAS patients with HT were significantly older than non-HMCAS patients with HT (t = 2.473, p = .015). The incidence of atrial fibrillation and the 3-month mortality rate were higher in HMCAS patients with HT than in non-HMCAS patients with HT (χ2 = 3.944, p = .047; χ2 = 6.043, p = .014, respectively). Multiple logistic regression analysis showed HT was independently associated with HMCAS (adjusted OR/95% CI/p = 2.762/1.571-4.854/p < .001) and admission NIHSS score (adjusted OR/95% CI/p = 1.081/1.026-1.139/0.003). And HMCAS with HT was independently associated with length of HMCAS (adjusted OR/95% CI/p = 1.216/1.076-1.374/0.002). CONCLUSIONS HMCAS in patients with a large cerebral infarction without thrombolytic therapy is an independent biomarker of HT. Length of HMCAS is also a marker of HT with lower ASPECTS in HMCAS patients.
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Affiliation(s)
- Jie Hou
- Department of Radiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Yu Sun
- Department of Radiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Yang Duan
- Department of Radiology, Center for Neuroimaging, General Hospital of Northern Theater Command, Shenyang, China
| | - Libo Zhang
- Department of Radiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Dengxiang Xing
- Department of Medicine Data, General Hospital of Northern Theater Command, Shenyang, China
| | - Xiaoqiu Lee
- Department of Neurology, General Hospital of Northern Theater Command, Shenyang, China
| | - Benqiang Yang
- Department of Radiology, General Hospital of Northern Theater Command, Shenyang, China
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147
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Memon MZ, Daniel D, Chaudhry MRA, Grewal M, Saini V, Lukas J, Siddu M, Algahtani R, Nisar T, Majidi S, Leon Guerrero CR, Burger KM, Greenberg E, Khandelwal P, Malik AM, Starke RM, Koch S, Yavagal DR. Clinical impact of the first pass effect on clinical outcomes in patients with near or complete recanalization during mechanical thrombectomy for large vessel ischemic stroke. J Neuroimaging 2021; 31:743-750. [PMID: 33930218 DOI: 10.1111/jon.12864] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND AND PURPOSE The first pass effect has been reported as a mechanical thrombectomy (MT) success metric in patients with large vessel occlusive stroke. We aimed to compare the clinical and neuroimagign outcomes of patients who had favorable recanalization (mTICI 2c or mTICI 3) achieved in one pass versus those requiring multiple passes. METHODS In this "real-world" multicenter study, patients with mTICI 2c or 3 recanalization were identified from three prospectively collected stroke databases from January 2016 to December 2019. Clinical outcomes were a favorable functional outcome at 90 days (modified Rankin Scale score 0-2), and the rate of symptomatic intracranial hemorrhage (ICH) any ICH, and 90-day mortality. RESULTS Favorable recanalization was achieved in 390/664 (59%) of consecutive patients who underwent MT (age 71.2 ± 13.2 years, 188 [48.2%] women). This was achieved after a single thrombectomy pass (n = 290) or multiple thrombectomy passes (n = 100). The rate of favorable clinical outcome was higher (41% vs. 28 %, p = .02) in the first pass group with a continued trend on multivariate analysis that did not reaching statistical significance (OR 1.68 95% confidence interval [CI] 1.0-2.95, p = .07). Similarly, the odds of any ICH were significantly lower (OR 0.56 CI 0.32-0.97, p = .03). A similar trend of favorable clinical outcomes was noticed on subgroup analysis of patients with M1 occlusion (OR 1.81 CI 1.01-3.61, p = .08). CONCLUSION The first-pass reperfusion was associated with a trend toward favorable clinical outcome and lower rates of ICH. These data suggest that the first-pass effect should be the mechanical thrombectomy procedure goal.
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Affiliation(s)
- Muhammad Zeeshan Memon
- Department of Neurology, University of Miami, Miami, Florida, USA.,Department of Neurosurgery Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - David Daniel
- Department of Neurology and Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Neurology, George Washington University, Washington, DC, USA
| | | | - Manjot Grewal
- Department of Neurology, George Washington University, Washington, DC, USA
| | - Vasu Saini
- Department of Neurology, University of Miami, Miami, Florida, USA.,Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Joshua Lukas
- Department of Neurology, University of Miami, Miami, Florida, USA
| | - Mithilesh Siddu
- Department of Neurology, University of Miami, Miami, Florida, USA.,Department of Neurology, George Washington University, Washington, DC, USA
| | - Rami Algahtani
- Department of Neurology, University of Miami, Miami, Florida, USA.,Department of Neurology, George Washington University, Washington, DC, USA.,Department of Medicine, Umm Alqura University, Makkah, Saudi Arabia
| | - Taha Nisar
- Department of Neurosurgery Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Shahram Majidi
- Department of Neurology and Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Neurology, George Washington University, Washington, DC, USA
| | | | - Kathleen M Burger
- Department of Neurology, George Washington University, Washington, DC, USA
| | | | - Priyank Khandelwal
- Department of Neurology, University of Miami, Miami, Florida, USA.,Department of Neurosurgery Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Amer M Malik
- Department of Neurology, University of Miami, Miami, Florida, USA
| | - Robert M Starke
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Sebastian Koch
- Department of Neurology, University of Miami, Miami, Florida, USA
| | - Dileep R Yavagal
- Department of Neurology, University of Miami, Miami, Florida, USA.,Department of Neurological Surgery, University of Miami, Miami, Florida, USA
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148
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Skyrman S, Burström G, Aspegren O, Lucassen G, Elmi-Terander A, Edström E, Arnberg F, Ohlsson M, Mueller M, Andersson T. Identifying clot composition using intravascular diffuse reflectance spectroscopy in a porcine model of endovascular thrombectomy. J Neurointerv Surg 2021; 14:304-309. [PMID: 33858972 PMCID: PMC8862084 DOI: 10.1136/neurintsurg-2020-017273] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 03/28/2021] [Accepted: 03/29/2021] [Indexed: 12/19/2022]
Abstract
Background Endovascular thrombectomy has revolutionized the management of acute ischemic stroke and proven superior to stand-alone intravenous thrombolysis for large vessel occlusions. However, failed or delayed revascularization may occur as a result of a mismatch between removal technique and clot composition. Determination of clot composition before thrombectomy provides the possibility to adapt the technique to improve clot removal efficacy. We evaluated the application of diffuse reflectance spectroscopy (DRS) for intravascular determination of clot composition in vivo. Methods Three clot types, enriched in red blood cells or fibrin or with a mixed content, were prepared from porcine blood and injected into the external carotids of a domestic pig. A guidewire-like DRS probe was used to investigate the optical spectra of clots, blood and vessel wall. Measurement positions were confirmed with angiography. Spectra were analyzed by fitting an optical model to derive physiological parameters. To evaluate the method’s accuracy, photon scattering and blood and methemoglobin contents were included in a decision tree model and a random forest classification. Results DRS could differentiate between the three different clot types, blood and vessel wall in vivo (p<0.0001). The sensitivity and specificity for detection was 73.8% and 98.8% for red blood cell clots, 80.6% and 97.8% for fibrin clots, and 100% and 100% for mixed clots, respectively. Conclusion Intravascular DRS applied via a custom guidewire can be used for reliable determination of clot composition in vivo. This novel approach has the potential to increase efficacy of thrombectomy procedures in ischemic stroke.
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Affiliation(s)
- Simon Skyrman
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden .,Department of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden
| | - Gustav Burström
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Department of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden
| | - Oskar Aspegren
- Department of Pathology, Karolinska University Hospital, Stockholm, Sweden.,Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Gerald Lucassen
- High Tech Campus 34, Philips Research, Eindhoven, The Netherlands
| | - Adrian Elmi-Terander
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Department of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden
| | - Erik Edström
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Department of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden
| | - Fabian Arnberg
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Department of Neuroradiology, Karolinska University Hospital, Stockholm, Sweden
| | - Marcus Ohlsson
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Department of Neuroradiology, Karolinska University Hospital, Stockholm, Sweden
| | - Manfred Mueller
- High Tech Campus 34, Philips Research, Eindhoven, The Netherlands
| | - Tommy Andersson
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Department of Neuroradiology, Karolinska University Hospital, Stockholm, Sweden.,Departments of Radiology and Neurology, AZ Groeninge, Kortrijk, Belgium
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149
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Waller J, Kaur P, Tucker A, Amer R, Bae S, Kogler A, Umair M. The benefit of intravenous thrombolysis prior to mechanical thrombectomy within the therapeutic window for acute ischemic stroke. Clin Imaging 2021; 79:3-7. [PMID: 33862545 DOI: 10.1016/j.clinimag.2021.03.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/21/2021] [Accepted: 03/18/2021] [Indexed: 11/19/2022]
Abstract
The increase in risk for acute ischemic stroke (AIS) with age is well established. If not treated properly and promptly, AIS can result in permanent neurological damage and even death. This literature review assesses the clinical outcomes of AIS patients treated with both intravenous thrombolysis (IVT) prior to mechanical thrombectomy (MT) compared to those treated solely with mechanical thrombectomy. Randomized controlled trials (RCTs) and meta-analyses published from 2015 to 2020 and available on PubMed were selected for review, and their quantitative and qualitative findings were extrapolated and summarized. Post-hoc analyses from ASTER and ETIS trials were reviewed as well as the impact of combined therapy and monotherapy on large vessel occlusions (LVO). Clinical outcomes in all examined trials demonstrated significant successful reperfusion as well as a higher rate of functional independence at 90 days for IVT prior to MT. Concerns of thrombus fragility, safety and cost effectiveness of dual therapy are also addressed. Based on these findings, we recommend the use of IVT as a pretreatment procedure to MT for AIS when eligible for IVT. Recent articles further strengthen this recommendation and provide new insights that IVT prior to MT is especially beneficial for patients presenting with multiple LVOs localized to the anterior intracranial circulation. Additional multi-center RCTs are necessary for further analysis of statistical outcomes demonstrating mixed effects.
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Affiliation(s)
- Joseph Waller
- Drexel University College of Medicine, 2900 W Queen Ln, PA 19129, United States of America.
| | - Parveer Kaur
- Vassar College, 124 Raymond Avenue, NY 12604, United States of America
| | - Amy Tucker
- Loyola University Chicago, 1032 W Sheridan Rd, IL 60660, United States of America
| | - Rami Amer
- Drexel University College of Medicine, 2900 W Queen Ln, PA 19129, United States of America
| | - Sonu Bae
- Ohio State University School of Medicine, 370 W 9th Ave, Columbus, OH 43210, United States of America
| | - Ann Kogler
- Drexel University College of Medicine, 2900 W Queen Ln, PA 19129, United States of America
| | - Muhammad Umair
- Northwestern University Feinberg School of Medicine, Department of Radiology, 676 N St Clair St, Chicago, IL 60611, United States of America
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150
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Zaidi SF, Castonguay AC, Zaidat OO, Mueller-Kronast N, Liebeskind DS, Salahuddin H, Jumaa MA. Intra-Arterial Thrombolysis after Unsuccessful Mechanical Thrombectomy in the STRATIS Registry. AJNR Am J Neuroradiol 2021; 42:708-712. [PMID: 33509921 DOI: 10.3174/ajnr.a6962] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 10/21/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Recent data suggest that intra-arterial thrombolytics may be a safe rescue therapy for patients with acute ischemic stroke after unsuccessful mechanical thrombectomy; however, safety and efficacy remain unclear. Here, we evaluate the use of intra-arterial rtPA as a rescue therapy in the Systematic Evaluation of Patients Treated with Neurothrombectomy Devices for Acute Ischemic Stroke (STRATIS) registry. MATERIALS AND METHODS STRATIS was a prospective, multicenter, observational study of patients with acute ischemic stroke with large-vessel occlusions treated with the Solitaire stent retriever as the first-line therapy within 8 hours from symptom onset. Clinical and angiographic outcomes were compared in patients having rescue therapy treated with and without intra-arterial rtPA. Unsuccessful mechanical thrombectomy was defined as any use of rescue therapy. RESULTS A total of 212/984 (21.5%) patients received rescue therapy, of which 83 (39.2%) and 129 (60.8%) were in the no intra-arterial rtPA and intra-arterial rtPA groups, respectively. Most occlusions were M1, with 43.4% in the no intra-arterial rtPA group and 55.0% in the intra-arterial rtPA group (P = .12). The median intra-arterial rtPA dose was 4 mg (interquartile range = 2-12 mg). A trend toward higher rates of substantial reperfusion (modified TICI ≥ 2b) (84.7% versus 73.0%, P = .08), good functional outcome (59.2% versus 46.6%, P = .10), and lower rates of mortality (13.3% versus 23.3%, P = .08) was seen in the intra-arterial rtPA cohort. Rates of symptomatic intracranial hemorrhage did not differ (0% versus 1.6%, P = .54). CONCLUSIONS Use of intra-arterial rtPA as a rescue therapy after unsuccessful mechanical thrombectomy was not associated with an increased risk of symptomatic intracranial hemorrhage or mortality. Randomized clinical trials are needed to understand the safety and efficacy of intra-arterial thrombolysis as a rescue therapy after mechanical thrombectomy.
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Affiliation(s)
- S F Zaidi
- From the Department of Neurology (S.F.A., A.C.C., H.S., M.A.J.), University of Toledo, Toledo, Ohio
| | - A C Castonguay
- From the Department of Neurology (S.F.A., A.C.C., H.S., M.A.J.), University of Toledo, Toledo, Ohio
| | - O O Zaidat
- St. Vincent Mercy Hospital (O.O.Z.), Toledo, Ohio
- Department of Neurology (O.O.Z., D.S.L.), University of California Los Angeles, Los Angeles, California
| | | | - D S Liebeskind
- Department of Neurology (O.O.Z., D.S.L.), University of California Los Angeles, Los Angeles, California
| | - H Salahuddin
- From the Department of Neurology (S.F.A., A.C.C., H.S., M.A.J.), University of Toledo, Toledo, Ohio
| | - M A Jumaa
- From the Department of Neurology (S.F.A., A.C.C., H.S., M.A.J.), University of Toledo, Toledo, Ohio
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