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Fu M, Fan Y, Yan S, Wang S, Zhang S, Chen F, Han R, He X, Gu P, Li J, Chen L. Barthel Index, SPAN-100, and NIHSS Studies on the Predictive Value of Prognosis in Patients With Thrombolysis. Neurologist 2024; 29:158-162. [PMID: 38251449 DOI: 10.1097/nrl.0000000000000554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
OBJECTIVE We mainly explore the predictive value of Barthel Index (BI), SPAN-100, and National Institute of Health stroke scale (NIHSS) scores on clinical prognosis and functional outcomes in thrombolytic patients and compare the differences in the predictive values of the above 3 scales so as to provide an effective basis to evaluate the prognosis of thrombolytic patients. METHODS Data were collected from 212 patients with the first-onset AIS (acute ischemic stroke). The enrolled patients were treated with recombinant tissue plasminogen activator thrombolytic therapy and were divided into 2 groups according to the modified Rankin Scale (mRS) score at discharge: the prognosis group (mRS≤2 points) and the poor prognosis group (mRS≥3 points). Logistic multivariate analysis was used to analyze the predictors of poor prognosis in patients with thrombolysis. MedCalc software was used to plot receiver operating characteristic (ROC) curves, calculate the area under the ROC curve (AUC), and compare the prediction performance of the 3 scales by the Delong and colleagues' method, and the difference of P <0.05 was statistically significant. RESULTS Logistic binary regression multivariate analysis suggested that BI was a predictor of poor prognosis for thrombolytic therapy in patients with AIS. The lower the BI score, the poorer the prognosis. The AUC for BI score was 0.862, 95% CI (0.808-0.906), NIHSS score AUC was 0.665, 95% CI (0.597-0.728), and SPAN-100 score AUC was 0.640, 95% CI (0.572-0.705). AUC comparison of 3 scoring ROC curves suggested statistically significant differences between BI and NIHSS ( PC =0.0000), BI and SPAN-100 ( PC =0.0000); no significant difference was observed between SPAN-100 and NIHSS ( PC =1.7997). CONCLUSIONS Simple BI scores have a high prognostic value for thrombolytic therapy in AIS.
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Affiliation(s)
- Meng Fu
- The Third Hospital of Hebei Medical University
| | - Yani Fan
- Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - Shuangmei Yan
- The First Hospital of Hebei Medical University, Shijiazhuang
| | - Sujie Wang
- Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - Sai Zhang
- The First Hospital of Hebei Medical University, Shijiazhuang
| | - Feifei Chen
- Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - Rui Han
- The First Hospital of Hebei Medical University, Shijiazhuang
| | - Xiaohong He
- Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - Ping Gu
- The First Hospital of Hebei Medical University, Shijiazhuang
| | - Jian Li
- Tangshan Gongren Hospital, Tangshan, Hebei, China
| | - Lili Chen
- Tangshan Gongren Hospital, Tangshan, Hebei, China
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Hoffman H, Wood J, Cote JR, Jalal MS, Otite FO, Masoud HE, Gould GC. Development and Internal Validation of Machine Learning Models to Predict Mortality and Disability After Mechanical Thrombectomy for Acute Anterior Circulation Large Vessel Occlusion. World Neurosurg 2024; 182:e137-e154. [PMID: 38000670 DOI: 10.1016/j.wneu.2023.11.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
OBJECTIVE Mechanical thrombectomy (MT) improves outcomes in patients with LVO but many still experience mortality or severe disability. We sought to develop machine learning (ML) models that predict 90-day outcomes after MT for LVO. METHODS Consecutive patients who underwent MT for LVO between 2015-2021 at a Comprehensive Stroke Center were reviewed. Outcomes included 90-day favorable functional status (mRS 0-2), severe disability (mRS 4-6), and mortality. ML models were trained for each outcome using prethrombectomy data (pre) and with thrombectomy data (post). RESULTS Three hundred and fifty seven patients met the inclusion criteria. After model screening and hyperparameter tuning the top performing ML model for each outcome and timepoint was random forest (RF). Using only prethrombectomy features, the AUCs for the RFpre models were 0.73 (95% CI 0.62-0.85) for favorable functional status, 0.77 (95% CI 0.65-0.86) for severe disability, and 0.78 (95% CI 0.64-0.88) for mortality. All of these were better than a standard statistical model except for favorable functional status. Each RF model outperformed Pre, SPAN-100, THRIVE, and HIAT scores (P < 0.0001 for all). The most predictive features were premorbid mRS, age, and NIHSS. Incorporating MT data, the AUCs for the RFpost models were 0.80 (95% CI 0.67-0.90) for favorable functional status, 0.82 (95% CI 0.69-0.91) for severe disability, and 0.71 (95% CI 0.55-0.84) for mortality. CONCLUSIONS RF models accurately predicted 90-day outcomes after MT and performed better than standard statistical and clinical prediction models.
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Affiliation(s)
- Haydn Hoffman
- Department of Neurosurgery, State University of New York Upstate Medical University, Syracuse, New York, USA.
| | - Jacob Wood
- Department of Neurosurgery, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - John R Cote
- Department of Neurosurgery, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - Muhammad S Jalal
- Department of Neurosurgery, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - Fadar O Otite
- Department of Neurology, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - Hesham E Masoud
- Department of Neurology, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - Grahame C Gould
- Department of Neurosurgery, State University of New York Upstate Medical University, Syracuse, New York, USA
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Nicolini E, Saia V, Lorenzano S, Pracucci G, Iacobucci M, De Michele M, Vallone S, Bergui M, Diomedi M, Nencini P, Tassi R, Saletti A, Puglielli E, Naldi A, Vinci SL, Giannini N, Malfatto L, Roberto M, Romano DG, Cappellari M, Zini A, Sallustio F, Casetta I, Fainardi E, Mangiafico S, Toni D. Mechanical thrombectomy in young patients with large vessel occlusion-related ischemic stroke: Data from the Italian Registry of Endovascular Treatment in Acute Stroke. Eur J Neurol 2023; 30:3751-3760. [PMID: 37565375 DOI: 10.1111/ene.16035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 07/28/2023] [Accepted: 08/08/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND AND PURPOSE The weight of outcome predictors in acute ischemic stroke (AIS) patients older than 60 years is not necessarily mirrored in the younger population, posing the question of whether outcome determinants specific for the latter might vary. Very few data are available on predictors of outcome in young AIS patients receiving endovascular treatment (EVT). METHODS We analyzed data for patients aged between 16 and 55 years from the Italian Registry of Endovascular Treatment in Acute Stroke. We divided our population into patients <45 years old and patients aged between 45 and 55 years. After testing the differences between groups in terms of 90-day modified Rankin Scale (mRS) 0-2, mortality, and symptomatic intracranial hemorrhage, we looked for predictors of poor outcome (mRS 3-6), death, and symptomatic intracerebral hemorrhage in the two groups. RESULTS A total of 438 patients younger than 45 years and 817 aged 45-55 years were included; 284 (34.8%) patients aged 45-55 years and 112 (25.6%) patients younger than 45 years old showed poor 90-day functional outcome (p = 0.001). Predictors of poor outcome in the older group were baseline National Institutes of Health Stroke Scale (NIHSS; p < 0.001), diabetes (p = 0.027), poor collateral status (p = 0.036), and groin puncture-to-recanalization time (p = 0.010), whereas Thrombolysis in Cerebral Infarction (TICI) 2b-3 had an inverse association (p < 0.001). Predictors of poor outcome in patients younger than 45 years were baseline NIHSS (p < 0.001) and groin puncture-to-recanalization time (p = 0.015), whereas an inverse association was found for baseline Alberta Stroke Program Early CT Score (p = 0.010) and TICI 2b-3 (p < 0.001). CONCLUSIONS Approximately one third of young adults treated with EVT do not reach a good functional outcome. Fast and successful recanalization, rather than common risk factors, has a major role in determining clinical outcome.
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Affiliation(s)
- Ettore Nicolini
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | | | - Svetlana Lorenzano
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | | | - Marta Iacobucci
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | - Manuela De Michele
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | | | | | | | | | - Rossana Tassi
- Azienda Ospedaliero Universitaria Senese, Siena, Italy
| | - Andrea Saletti
- Azienda Ospedaliero Universitaria di Ferrara, Ferrara, Italy
| | | | | | | | | | - Laura Malfatto
- Istituti di Ricovero e Cura a Carattere Scientifico - IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | | | - Daniele G Romano
- Azienda Ospedaliera Universitaria S. Giovanni di Dio Ruggi D'Aragona, Salerno, Italy
| | | | - Andrea Zini
- Istituto di Ricovero e Cura a Carattere Scientifico - IRCCS Istituto Delle Scienze Neurologiche di Bologna, Bologna, Italy
| | | | - Ilaria Casetta
- Clinical Neurology, University of Ferrara, Ferrara, Italy
| | | | - Salvatore Mangiafico
- Istituti di Ricovero e Cura a Carattere Scientifico - IRCCS Neuromed, Pozzilli, Italy
| | - Danilo Toni
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
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Neki H, Mochizuki Y, Kamio Y, Kurozumi K. Improving the Reachability of Contact Aspiration for Acute Ischemic Stroke Using a New Delivery Assist Catheter. World Neurosurg 2023; 179:e510-e514. [PMID: 37683918 DOI: 10.1016/j.wneu.2023.08.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023]
Abstract
OBJECTIVE This study aimed to improve the reachability of large lumen catheter for contact aspiration during acute ischemic stroke by a new delivery assist catheter. METHODS This study included 58 patients with large-vessel stroke treated using endovascular procedures at our institution and affiliated hospitals between July 2021 and January 2023. Contact aspiration, especially contact aspiration using nonpenetrating of thrombus (CANP) technique, was adopted as first-line thrombectomy for localized internal carotid artery, middle cerebral artery proximal (M1 segment), and basilar artery without tandem occlusion in acute stroke. The new delivery assist catheter (AXS Offset catheter, Stryker, Fremont, CA, USA) was standardized after its release. Results of this improved contact aspiration technique using the new delivery assist catheter, including reachability, procedure time, and first-pass effect, were compared with conventional catheters. RESULTS Of the 58 patients, 43 underwent only thrombectomy for acute embolic stroke. CANP technique was attempted on 25 patients (25/43, 58.1%). Of these, a normal inner catheter (inner diameter: 0.021 or 0.027 inches) and the new delivery assist catheter were used on 10 (10/25, 40%) and 15 (15/25, 60%) patients, respectively. An aspiration catheter reached the thrombus for 5 patients (5/10, 50%) and 14 patients (14/15 93.3%) in the normal and new delivery assist catheter groups, respectively (P = 0.023). There was no significant difference in the results of contact aspiration due to the delivery catheter. CONCLUSIONS The new delivery assist catheter improved the reachability of the aspiration catheter to the thrombus and is an effective device for performing CANP technique.
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Affiliation(s)
- Hiroaki Neki
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan.
| | - Yuichi Mochizuki
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Yoshinobu Kamio
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Kazuhiko Kurozumi
- Department of Neurosurgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
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5
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Han B, Sun D, Raynald, Jia B, Tong X, Wang A, Mo D, Gao F, Ma N, Miao Z. Current status of endovascular treatment for older adults with acute large vessel occlusion stroke in China: subgroup analysis of ANGEL act registry. Front Neurol 2023; 14:1114556. [PMID: 37144005 PMCID: PMC10151760 DOI: 10.3389/fneur.2023.1114556] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 03/15/2023] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND Although endovascular treatment (EVT) has become the standard treatment for acute large vessel occlusion (LVO), its safety and efficacy in older adults have not been fully determined. The present study aimed to compare the safety and efficacy of EVT for acute LVO between younger (<80 years old) and older adults (≥80 years old) in the Chinese population. METHODS The subjects were selected from the ANGEL-ACT registry (endovascular treatment key technique and emergency workflow improvement of acute ischemic stroke). The 90-day modified Rankin score (mRS), successful recanalization, procedure duration, number of passes, intracranial hemorrhage (ICH), and mortality within 90 days were compared after adjusting for confounders. RESULTS A total of 1,691 patients, 1,543 classified as young and 148 classified as older, were included. We observed that young and older adults had a similar 90-day mRS distribution, successful recanalization, procedure duration, number of passes, ICH, and mortality within 90 days (all p > 0.05). The rate of 90-day mRS 0-3 was found to be higher in young patients than in older adults (39.9% vs. 56.5%, odds ratio = 0.64, 95% confidence interval = 0.44-0.94, p = 0.022). CONCLUSION We found that patients less than or greater than 80 years of age share similar clinical outcomes, without increasing the risk of ICH and mortality.
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Affiliation(s)
- Bin Han
- Shanxi Key Laboratory of Brain Disease Control, Department of Neurology, Shanxi Provincial People’s Hospital, Taiyuan, China
| | - Dapeng Sun
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Raynald
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Baixue Jia
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xu Tong
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Anxin Wang
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Beijing, China
| | - Dapeng Mo
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Feng Gao
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ning Ma
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zhongrong Miao
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Lin MT, Wu HW, Chen HY, Tsai HT, Wu CH. Association of clinical factors to functional outcomes in patients with stroke with large-vessel occlusion after endovascular thrombectomy. J Formos Med Assoc 2023; 122:344-350. [PMID: 36513530 DOI: 10.1016/j.jfma.2022.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/21/2022] [Accepted: 11/27/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND/PURPOSE Multiple clinical factors have been reported to be associated with functional outcomes in patients with stroke. However, little is known about prognostic predictors of functional independence in patients with stroke undergoing endovascular thrombectomy (EVT). Our study aimed to investigate the correlation between multiple prognostic variables (including EVT and rehabilitation-related parameters) and functional outcomes in patients post-EVT. METHODS This retrospective cohort study recruited patients hospitalized between December 2018 and March 2022. Patients with stroke with large-vessel occlusion who underwent EVT were eligible for inclusion in the study. Prognostic factors, including premorbid characteristics, laboratory data, EVT- and rehabilitation-related parameters, functional activity level, balance ability, swallowing, and sphincter function, were collected. Logistic regression and generalized linear models were used to analyze their correlations with functional outcomes. RESULTS A total of 148 patients were included. In the univariate logistic regression analysis, younger age, premorbid functional independence, higher hemoglobin (Hb) level, lower National Institute of Health Stroke Scale (NIHSS) score, absence of hemorrhagic transformation in 14 days, no nasogastric (NG) tube placement, earlier rehabilitation, frequent daily rehabilitation sessions, more out-of-bed rehabilitation, better ability of sitting up, better initial sitting balance, higher Barthel index (BI), absence of immobility, and neurological complications were associated with favorable outcomes at 3 months. In the stepwise regression model, the predictors of favorable function at 3 months included age, ability to sit up, and frequency of daily rehabilitation sessions; favorable outcomes at 6 months were associated with age, ability to sit up, and swallowing function. CONCLUSION In patients with stroke post-EVT, better functional outcomes were associated with prognostic variables, including younger age, better ability to sit up, normal swallowing function, and frequent daily rehabilitation sessions.
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Affiliation(s)
- Meng-Ting Lin
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Hao-Wei Wu
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
| | - Hsing-Yu Chen
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
| | - Hsiao-Ting Tsai
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
| | - Chueh-Hung Wu
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei 100, Taiwan.
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Ryu JC, Jung S, Bae JH, Ha SH, Kim BJ, Jeon SB, Kang DW, Kwon SU, Kim JS, Chang JY. Thromboelastography as a predictor of functional outcome in acute ischemic stroke patients undergoing endovascular treatment. Thromb Res 2023; 225:95-100. [PMID: 37058775 DOI: 10.1016/j.thromres.2023.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/24/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023]
Abstract
BACKGROUND Thromboelastography (TEG) is a useful for predicting hemorrhagic transformation, early neurological deterioration, and functional outcome after stroke. We aimed to investigate whether TEG value could also be useful in predicting functional outcome via various intraprocedural and postprocedural factors in patients with acute large vessel occlusive stroke who underwent intraarterial thrombectomy (IAT). METHODS Patients with ischemic stroke who underwent IAT between March 2018 and March 2020 at two tertiary hospitals were included. The association between reaction time (R) and functional outcome was evaluated. The primary outcome was the achievement of functional independence defined as the achievement of a modified Rankin Scale (mRS) score of 0-2 at 3 months after the index stroke. RESULTS Among a total of 160 patients (mean age, 70.6 ± 12.3 years; 103 [64.4 %] men), 79 (49.3 %) achieved functional independence at 3 months. R, both as a continuous (odds ratio [OR]: 1.45, 95 % confidence interval [95 % CI]: 1.09-1.92, P = 0.011) and dichotomized parameters (R < 5 min [OR: 0.37, 95 % CI: 0.16-0.82, P = 0.014]), were inversely associated with increased odds of achieving functional independence (mRS score 0-2) after multivariable analysis. The association was still consistent when the outcome was the achievement of disability free (mRS score 0-1) or mRS score analyzed as an ordinal variable. CONCLUSIONS Decreased R, especially R < 5 min, was inversely associated with functional outcome pf stroke after EVT.
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Abderrakib A, Ligot N, Torcida N, Sadeghi Meibodi N, Naeije G. Crossed Cerebellar Diaschisis Worsens the Clinical Presentation in Acute Large Vessel Occlusion. Cerebrovasc Dis 2023; 52:552-559. [PMID: 36716718 DOI: 10.1159/000528676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 12/02/2022] [Indexed: 02/01/2023] Open
Abstract
INTRODUCTION Initial NIHSS in anterior large vessel occlusion (LVO) correlates partially with the hypoperfusion volume. We aimed at assessing the contribution of crossed cerebellar diaschisis (CCD) from the hypoperfused territory on LVO initial clinical deficit. METHODS CCD was retrospectively identified by brain CT perfusion imaging (CTP) in patients with anterior LVO treated by mechanical thrombectomy from January 2017 to July 2021. CCD was defined by CTP parameter alteration in the contralateral cerebellar hemisphere to the LVO. NIHSS, clinical/perfusion variables, and CCD were included in regression models to assess their interrelationships. RESULTS 206 patients were included. CCD was present in 90 patients (69%). NIHSS scores were higher on admission and at stroke discharge among patients with CCD (17.90 ± 6.1 vs. 11.4 ± 8.4, p < 0.001; 9.6 ± 7.7 vs. 6.6 ± 7.9, p = 0.049; respectively). Patients with a CCD had higher stroke volumes (118.2 ± 60.3 vs. 69.3 ± 59.7, p < 0.001) and lower rate of known atrial fibrillation (22% vs. 41%, p = 0.021). On multivariable logistic regression, CCD independently worsened the initial NIHSS (OR 4.85 [2.37-7.33]; p < 0.001). CONCLUSION CCD is found in 69% of LVO on admission CTP, correlates with stroke volumes, and independently worsens initial NIHSS.
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Affiliation(s)
- Anissa Abderrakib
- Neurology Department, Université Libre de Bruxelles - Cliniques Universitaires de Bruxelles - Hôpital Erasme, Bruxelles, Belgium
| | - Noémie Ligot
- Neurology Department, Université Libre de Bruxelles - Cliniques Universitaires de Bruxelles - Hôpital Erasme, Bruxelles, Belgium
| | - Nathan Torcida
- Neurology Department, Université Libre de Bruxelles - Cliniques Universitaires de Bruxelles - Hôpital Erasme, Bruxelles, Belgium
| | - Niloufar Sadeghi Meibodi
- Radiology Department, Université Libre de Bruxelles - Cliniques Universitaires de Bruxelles - Hôpital Erasme, Bruxelles, Belgium
| | - Gilles Naeije
- Neurology Department, Université Libre de Bruxelles - Cliniques Universitaires de Bruxelles - Hôpital Erasme, Bruxelles, Belgium
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Chung CC, Bamodu OA, Hong CT, Chan L, Chiu HW. Application of machine learning-based models to boost the predictive power of the SPAN index. Int J Neurosci 2023; 133:26-36. [PMID: 33499706 DOI: 10.1080/00207454.2021.1881092] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
BACKGROUND This study re-explored the predictive validity of Stroke Prognostication using Age and National Institutes of Health Stroke Scale (SPAN) index in patients who received different treatments for acute ischemic stroke (AIS) and developed machine learning-boosted outcome prediction models. METHODS We evaluated the prognostic relevance of SPAN index in patients with AIS who received intravenous tissue-type plasminogen activator (IV-tPA), intra-arterial thrombolysis (IAT) or non-thrombolytic treatments (non-tPA), and applied machine learning algorithms to develop SPAN-based outcome prediction models in a cohort of 2145 hospitalized AIS patients. The performance of the models was assessed and compared using the area under the receiver operating characteristic curves (AUCs). RESULTS SPAN index ≥100 was associated with higher mortality rate and higher modified Rankin Scale at discharge in AIS patients who received the different treatments. Compared to the lower AUCs for the SPAN-alone model across all groups, the AUCs of the logistic regression-boosted model were 0.838, 0.857, 0.766 and 0.875 for the whole cohort, non-tPA, IV-tPA and IAT groups, respectively. Similarly, the AUCs of the generated artificial neural network were 0.846, 0.858, 0.785 and 0.859 for the whole cohort, non-tPA, IV-tPA and IAT groups, respectively, while for gradient boosting decision tree model, we computed 0.850, 0.863, 0.779 and 0.815. CONCLUSIONS SPAN index has prognostic relevance in patients with AIS who received different treatments. The generated machine learning-based models exhibit good performance for predicting the functional recovery of AIS; thus, their proposed clinical application to aid outcome prediction and decision-making for the patients with AIS.
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Affiliation(s)
- Chen-Chih Chung
- Department of Neurology, Taipei Medical University - Shuang Ho Hospital, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan.,Graduate Institute of Biomedical Informatics, College of Medical Science and Technology, Taipei Medical University, Taipei City, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University - Shuang Ho Hospital, New Taipei City, Taiwan
| | - Oluwaseun Adebayo Bamodu
- Department of Hematology and Oncology, Cancer Center, Taipei Medical University - Shuang Ho Hospital, New Taipei City, Taiwan.,Department of Urology, Taipei Medical University - Shuang Ho Hospital, New Taipei City, Taiwan.,Department of Medical Research & Education, Taipei Medical University - Shuang Ho Hospital, New Taipei City, Taiwan
| | - Chien-Tai Hong
- Department of Neurology, Taipei Medical University - Shuang Ho Hospital, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University - Shuang Ho Hospital, New Taipei City, Taiwan
| | - Lung Chan
- Department of Neurology, Taipei Medical University - Shuang Ho Hospital, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University - Shuang Ho Hospital, New Taipei City, Taiwan
| | - Hung-Wen Chiu
- Graduate Institute of Biomedical Informatics, College of Medical Science and Technology, Taipei Medical University, Taipei City, Taiwan.,Clinical Big Data Research Center, Taipei Medical University Hospital, Taipei City, Taiwan
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10
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Kis B, Neuhaus AA, Harston G, Joly O, Carone D, Gerry S, Chadaide Z, Pánczél A, Czifrus E, Csike V, Surányi Á, Szikora I, Erőss L. Automated quantification of atrophy and acute ischemic volume for outcome prediction in endovascular thrombectomy. Front Neurol 2022; 13:1056532. [PMID: 36588883 PMCID: PMC9797714 DOI: 10.3389/fneur.2022.1056532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022] Open
Abstract
Background Short- and long-term outcomes from endovascular thrombectomy (EVT) for large vessel occlusion stroke remain variable. Numerous relevant predictors have been identified, including severity of neurological deficits, age, and imaging features. The latter is typically defined as acute changes (most commonly Alberta Stroke Programme Early CT Score, ASPECTS, at presentation), but there is little information on the impact of imaging assessment of premorbid brain health as a determinant of outcome. Aims To examine the impact of automated measures of stroke severity and underlying brain frailty on short- and long-term outcomes in acute stroke treated with EVT. Methods In 215 patients with anterior circulation stroke, who subsequently underwent EVT, automated analysis of presenting non-contrast CT scans was used to determine acute ischemic volume (AIV) and e-ASPECTS as markers of stroke severity, and cerebral atrophy as a marker of brain frailty. Univariate and multivariate logistic regression were used to identify significant predictors of NIHSS improvement, modified Rankin scale (mRS) at 90 and 30 days, mortality at 90 days and symptomatic intracranial hemorrhage (sICH) following successful EVT. Results For long-term outcome, atrophy and presenting NIHSS were significant predictors of mRS 0-2 and death at 90 days, whereas age did not reach significance in multivariate analysis. Conversely, for short-term NIHSS improvement, AIV and age were significant predictors, unlike presenting NIHSS. The interaction between age and NIHSS was similar to the interaction of AIV and atrophy for mRS 0-2 at 90 days. Conclusion Combinations of automated software-based imaging analysis and clinical data can be useful for predicting short-term neurological outcome and may improve long-term prognostication in EVT. These results provide a basis for future development of predictive tools built into decision-aiding software in stroke.
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Affiliation(s)
- Balázs Kis
- National Institute of Mental Health, Neurology, and Neurosurgery (NIMNN), Budapest, Hungary,*Correspondence: Balázs Kis
| | - Ain A. Neuhaus
- Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom,Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - George Harston
- Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom,Brainomix Ltd., Oxford, United Kingdom
| | | | - Davide Carone
- Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom,Brainomix Ltd., Oxford, United Kingdom
| | - Stephen Gerry
- Centre for Statistics in Medicine, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | | | - András Pánczél
- Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Eszter Czifrus
- Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Viktória Csike
- National Institute of Mental Health, Neurology, and Neurosurgery (NIMNN), Budapest, Hungary
| | - Ágnes Surányi
- National Institute of Mental Health, Neurology, and Neurosurgery (NIMNN), Budapest, Hungary
| | - István Szikora
- National Institute of Mental Health, Neurology, and Neurosurgery (NIMNN), Budapest, Hungary
| | - Loránd Erőss
- National Institute of Mental Health, Neurology, and Neurosurgery (NIMNN), Budapest, Hungary
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11
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Kim JY, Kang J, Kim BJ, Kim SE, Kim DY, Lee KJ, Park HK, Cho YJ, Park JM, Lee KB, Cha JK, Lee JS, Lee J, Yang KH, Hong OR, Shin JH, Park JH, Gorelick PB, Bae HJ. Annual Case Volume and One-Year Mortality for Endovascular Treatment in Acute Ischemic Stroke. J Korean Med Sci 2022; 37:e270. [PMID: 36123959 PMCID: PMC9485065 DOI: 10.3346/jkms.2022.37.e270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 07/21/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND The association between endovascular treatment (EVT) case volume per hospital and clinical outcomes has been reported, but the exact volume threshold has not been determined. This study aimed to examine the case volume threshold in this context. METHODS National audit data on the quality of acute stroke care in patients admitted via emergency department, within 7 days of onset, in hospitals that treated ≥ 10 stroke cases during the audit period were analyzed. Ischemic stroke cases treated with EVT during the last three audits (2013, 2014, and 2016) were selected for the analysis. Annual EVT case volume per hospital was estimated and analyzed as a continuous and a categorical variable (in quartiles). The primary outcome measure was 1-year mortality as a surrogate of 3-month functional outcome. As post-hoc sensitivity analysis, replication of the study results was examined using the 2018 audit data. RESULTS We analyzed 1,746 ischemic stroke cases treated with EVT in 120 acute care hospitals. The median annual EVT case volume was 12.0 cases per hospital, and mortality rates at 1 month, 3 months, and 1 year were 12.7%, 16.6%, and 23.3%, respectively. Q3 and Q4 had 33% lower odds of 1-year mortality than Q1. Adjustments were made for predetermined confounders. Annual EVT case volume cut-off value for 1-year mortality was 15 cases per year (P < 0.02). The same cut-off value was replicated in the sensitivity analysis. CONCLUSION Annual EVT case volume was associated with 1-year mortality. The volume threshold per hospital was 15 cases per year.
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Affiliation(s)
- Jun Yup Kim
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Jihoon Kang
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Beom Joon Kim
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Seong-Eun Kim
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Do Yeon Kim
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Keon-Joo Lee
- Department of Neurology, Korea University Guro Hospital, Seoul, Korea
| | - Hong-Kyun Park
- Department of Neurology, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Yong-Jin Cho
- Department of Neurology, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Jong-Moo Park
- Department of Neurology, Uijeongbu Eulji Medical Center, Eulji University, Uijeongbu, Korea
| | - Kyung Bok Lee
- Department of Neurology, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Jae-Kwan Cha
- Department of Neurology, Dong-A University Hospital, Dong-A University College of Medicine, Busan, Korea
| | - Ji Sung Lee
- Clinical Research Center, Asan Institute for Life Sciences, Asan Medical Center, Seoul, Korea
| | - Juneyoung Lee
- Department of Biostatistics, Korea University College of Medicine, Seoul, Korea
| | - Ki Hwa Yang
- Health Insurance Review and Assessment Service, Wonju, Korea
| | - Ock Ran Hong
- Health Insurance Review and Assessment Service, Wonju, Korea
| | - Ji Hyeon Shin
- Health Insurance Review and Assessment Service, Wonju, Korea
| | - Jung Hyun Park
- Department of Neurology, Gyeonggi Provincial Medical Center Icheon Hospital, Icheon, Korea
| | - Philip B Gorelick
- Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Hee-Joon Bae
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
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12
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Dynamic Prediction of Mechanical Thrombectomy Outcome for Acute Ischemic Stroke Patients Using Machine Learning. Brain Sci 2022; 12:brainsci12070938. [PMID: 35884744 PMCID: PMC9313360 DOI: 10.3390/brainsci12070938] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/13/2022] [Accepted: 07/15/2022] [Indexed: 02/06/2023] Open
Abstract
The unfavorable outcome of acute ischemic stroke (AIS) with large vessel occlusion (LVO) is related to clinical factors at multiple time points. However, predictive models used for dynamically predicting unfavorable outcomes using clinically relevant preoperative and postoperative time point variables have not been developed. Our goal was to develop a machine learning (ML) model for the dynamic prediction of unfavorable outcomes. We retrospectively reviewed patients with AIS who underwent a consecutive mechanical thrombectomy (MT) from three centers in China between January 2014 and December 2018. Based on the eXtreme gradient boosting (XGBoost) algorithm, we used clinical characteristics on admission (“Admission” Model) and additional variables regarding intraoperative management and the postoperative National Institute of Health stroke scale (NIHSS) score (“24-Hour” Model, “3-Day” Model and “Discharge” Model). The outcome was an unfavorable outcome at the three-month mark (modified Rankin scale, mRS 3–6: unfavorable). The area under the receiver operating characteristic curve and Brier scores were the main evaluating indexes. The unfavorable outcome at the three-month mark was observed in 156 (62.0%) of 238 patients. These four models had a high accuracy in the range of 75.0% to 87.5% and had a good discrimination with AUC in the range of 0.824 to 0.945 on the testing set. The Brier scores of the four models ranged from 0.122 to 0.083 and showed a good predictive ability on the testing set. This is the first dynamic, preoperative and postoperative predictive model constructed for AIS patients who underwent MT, which is more accurate than the previous prediction model. The preoperative model could be used to predict the clinical outcome before MT and support the decision to perform MT, and the postoperative models would further improve the predictive accuracy of the clinical outcome after MT and timely adjust therapeutic strategies.
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13
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Lin KH, Lin HJ, Yeh PS. Determinants of Prolonged Length of Hospital Stay in Patients with Severe Acute Ischemic Stroke. J Clin Med 2022; 11:jcm11123457. [PMID: 35743530 PMCID: PMC9225000 DOI: 10.3390/jcm11123457] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/12/2022] [Accepted: 06/14/2022] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVE Long hospitalizations are associated with a high comorbidity and considerable hospital cost. Admissions of severe acute ischemic stroke are prone to longer hospitalizations. We aimed to explore the issue and method for improving the length of stay. METHODS From the prospective Stroke Registry between January 2019 and June 2020, acute ischemic strokes with an admission National Institutes of Health Stroke Scale ≥ 15 were identified. Prolonged length-of-stay was defined as in-hospital-stay ≥ 30 days. All clinical characteristics were collected, and all do-not-resuscitate documentations were categorized if the order had been written within 7 days of onset. RESULTS A total of 212 patients were eligible for severe stroke. Of these, 42 (19.8%) had prolonged length-of-stay and 170 had non-prolonged length-of-stay (median 43 vs. 13 days). The prolonged group was younger, mostly men, and was more likely to be in an independent state and more likely to receive reperfusion therapy, and there was a higher frequency of late do-not-resuscitate orders if signed. Although there was a lower in-hospital mortality rate in the prolonged group (12% vs. 23%), there was a higher proportion with a severe functional state (Modified Rankin Scale = 4-5) among the survivors (97% vs. 87%). CONCLUSIONS Severe acute ischemic stroke patients with a prolonged length-of-stay were younger, mostly male, more likely to receive reperfusion therapy, less likely to have an early do-not-resuscitate order if signed, and more likely to have poor functional status at discharge, although there was a lower rate of in-hospital mortality.
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Affiliation(s)
| | | | - Poh-Shiow Yeh
- Correspondence: ; Tel.: +886-6-2812811 (ext. 57110 or 53744); Fax: +886-6-2828928
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14
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Elwan ME, Mansour OY, Lashin ME, Melake MS. Factors affecting mechanical thrombectomy outcome in acute ischemic stroke patients: an Egyptian sample. THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2022. [DOI: 10.1186/s41983-022-00491-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Stroke constitutes a major health problem worldwide, nowadays endovascular treatment is considered to be a standard of care in acute ischemic stroke patients with large vessel occlusion, accurate prediction of outcome of thrombectomy is essential for health care providers, patients and families. We studied different clinical and radiological variables that could predict functional outcome in stroke patients after thrombectomy. Thirty-four consecutive ischemic stroke patients were included, received intravenous tissue plasminogen activator (iv-tpa), then mechanical thrombectomy was done. Patients were clinically assessed at admission with National Institute of Health Stroke Scale (NIHSS) then evaluated by the Alberta Stroke Program early computerized tomography (CT) score (ASPECTS), clot burden scale (CBS) and collateral score (CS) in multiphase computerized tomography angiography (CTA) then good and poor outcomes at 3 months were defined by Modified Rankin Scale (MRS) of 0–2 and 3–6 points, respectively.
Results
Factors associated with good outcome (MRS 0–2) were lower admission NIHSS score (p < 0.037), small infarct core aspects ≥ 6 (p < 0.001), low clot burden (CBS 7–10) (p = 0.046) good collaterals (2–3) (p = 0.038) and absence of post-procedure hemorrhage (p < 0.0005).
Conclusions
Low admission NIHSS score, absence of post-procedure hemorrhage, small infarct core, low clot burden and good collaterals are reliable factors for good clinical outcome.
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15
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Shen Y, Dong Z, Xu G, Zhong J, Pan P, Chen Z, Shi H. Correlation Between Intracranial Carotid Artery Calcification and Prognosis of Acute Ischemic Stroke After Intravenous Thrombolysis. Front Neurol 2022; 13:740656. [PMID: 35493846 PMCID: PMC9043808 DOI: 10.3389/fneur.2022.740656] [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: 07/13/2021] [Accepted: 03/08/2022] [Indexed: 11/30/2022] Open
Abstract
Objective To investigate the correlation between prognosis and intracranial carotid artery calcification (ICAC) in patients with acute ischemic stroke (AIS) who receive intravenous thrombolysis (IVT). Methods A total of 156 AIS patients who received IVT from March 2019 to March 2020 were enrolled. The modified Woodcock visual score was used to evaluate ICAC in nonenhanced head CT scans. Patients were divided into high calcification burden (HCB; score ≥3) and low calcification burden (LCB; score <3) groups. Demographic, laboratory, imaging and clinical data were compared between the two groups, and whether HCB was a prognostic factor was evaluated. Results Compared with the LCB group, the HCB group had a higher incidence of atrial fibrillation (49.2 vs.22.1%, P < 0.001) and coronary heart disease (24.6 vs. 10.0%, P = 0.019) and higher serum homocysteine [15.31 (12.15, 17.50) vs. 14.40 (11.20, 16.20), P = 0.036] and hemoglobin A1c (6.93 ± 1.77 vs. 6.37 ± 0.74, P = 0.023) levels. Binary logistic regression analysis showed that atrial fibrillation (OR = 3.031, 95% CI: 1.312–7.006, P = 0.009) and HbA1c (OR = 1.488, 95% CI: 1.050–2.109, P = 0.026) were independent risk factors for ICAC. After adjusting for other risk factors, symptomatic-side and bilateral ICACs were independent risk factors for poor prognosis (OR = 1.969, 95% CI: 1.220–3.178, P = 0.006), (OR = 1.354, 95% CI: 1.065–1.722, P = 0.013) and mortality (OR = 4.245, 95% CI: 1.114–16.171, P = 0.034), (OR = 2.414, 95% CI = 1.152–5.060, P = 0.020) in patients with AIS who received IVT. Conclusion ICAC is closely related to the prognosis of acute ischemic stroke after intravenous thrombolysis.
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Affiliation(s)
- Yuan Shen
- Department of Neurology, Yancheng Third People's Hospital, Yancheng, China
- Department of Neurology, The Yancheng School of Clinical Medicine of Nanjing Medical University, Yancheng, China
- The Sixth Affiliated Hospital of Nantong University, Nantong, China
| | - Zhifeng Dong
- Department of Cardiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Gang Xu
- Department of Medical Imaging, Yancheng Third People's Hospital, Yancheng, China
| | - Jianguo Zhong
- Department of Neurology, Yancheng Third People's Hospital, Yancheng, China
| | - Pinglei Pan
- Department of Central Laboratory, Yancheng Third People's Hospital, Yancheng, China
| | - Zhipeng Chen
- Department of Neurology, Yancheng Third People's Hospital, Yancheng, China
| | - Haicun Shi
- Department of Neurology, Yancheng Third People's Hospital, Yancheng, China
- Department of Neurology, The Yancheng School of Clinical Medicine of Nanjing Medical University, Yancheng, China
- The Sixth Affiliated Hospital of Nantong University, Nantong, China
- *Correspondence: Haicun Shi
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16
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Tan BYQ, Ho JSY, Leow AS, Chia MLJ, Sia CH, Koh YY, Seetharaman SK, Yang C, Gopinathan A, Teoh HL, Sharma VK, Seet RCS, Chan BPL, Yeo LLL, Tan LF. Effect of frailty on outcomes of endovascular treatment for acute ischaemic stroke in older patients. Age Ageing 2022; 51:6575882. [PMID: 35486669 DOI: 10.1093/ageing/afac096] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND frailty has been shown to be a better predictor of clinical outcomes than age alone across many diseases. Few studies have examined the relationship between frailty, stroke and stroke interventions such as endovascular thrombectomy (EVT). OBJECTIVE we aimed to investigate the impact of frailty measured by clinical frailty scale (CFS) on clinical outcomes after EVT for acute ischemic stroke (AIS) in older patients ≥70 years. METHODS in this retrospective cohort study, we included all consecutive AIS patients age ≥ 70 years receiving EVT at a single comprehensive stroke centre. Patients with CFS of 1-3 were defined as not frail, and CFS > 3 was defined as frail. The primary outcome was modified Rankin Score (mRS) at 90 days. The secondary outcomes included duration of hospitalisation, in-hospital mortality, carer requirement, successful reperfusion, symptomatic intracranial haemorrhage and haemorrhagic transformation. RESULTS a total of 198 patients were included. The mean age was 78.1 years and 52.0% were female. Frail patients were older, more likely to be female, had more co-morbidities. CFS was significantly associated with poor functional outcome after adjustment for age, NIHSS and time to intervention (adjusted odds ratio [aOR] 1.54, 95% confidence interval [CI] 1.04-2.28, P = 0.032). There was trend towards higher mortality rate in frail patients (frail: 18.3%; non-frail: 9.6%; P = 0.080). There were no significant differences in other secondary outcomes except increased carer requirement post discharge in frail patients (frail: 91.6%; non-frail: 72.8%; P = 0.002). CONCLUSIONS frailty was associated with poorer functional outcome at 90 days post-EVT in patients ≥ 70 years.
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Affiliation(s)
- Benjamin Y Q Tan
- Division of Neurology, Department of Medicine, National University Health System, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jamie S Y Ho
- Academic Foundation Programme, Royal Free London NHS Foundation Trust, London, UK
| | - Aloysius S Leow
- Division of Neurology, Department of Medicine, National University Health System, Singapore, Singapore
| | - Magdalene L J Chia
- Division of Neurology, Department of Medicine, National University Health System, Singapore, Singapore
| | - Ching Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Cardiology, National University Heart Centre, Singapore, Singapore
| | - Ying Ying Koh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | | | - Cunli Yang
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Diagnostic Imaging, National University Health System, Singapore, Singapore
| | - Anil Gopinathan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Department of Diagnostic Imaging, National University Health System, Singapore, Singapore
| | - Hock Luen Teoh
- Division of Neurology, Department of Medicine, National University Health System, Singapore, Singapore
| | - Vijay K Sharma
- Division of Neurology, Department of Medicine, National University Health System, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Raymond C S Seet
- Division of Neurology, Department of Medicine, National University Health System, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Bernard P L Chan
- Division of Neurology, Department of Medicine, National University Health System, Singapore, Singapore
| | - Leonard L L Yeo
- Division of Neurology, Department of Medicine, National University Health System, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Li Feng Tan
- Healthy Ageing Programme, Department of Geriatric Medicine, Alexandra Hospital, Singapore, Singapore
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17
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Ligot N, Elands S, Damien C, Jodaitis L, Sadeghi Meibodi N, Mine B, Bonnet T, Guenego A, Lubicz B, Naeije G. Stroke Core Volume Weighs More Than Recanalization Time for Predicting Outcome in Large Vessel Occlusion Recanalized Within 6 h of Symptoms Onset. Front Neurol 2022; 13:838192. [PMID: 35265032 PMCID: PMC8898898 DOI: 10.3389/fneur.2022.838192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 01/28/2022] [Indexed: 12/02/2022] Open
Abstract
Introduction Current guidelines suggest that perfusion imaging should only be performed > 6 h after symptom onset. Pathophysiologically, brain perfusion should matter whatever the elapsed time. We aimed to compare relative contribution of recanalization time and stroke core volume in predicting functional outcome in patients treated by endovascular thrombectomy within 6-h of stroke-onset. Methods Consecutive patients presenting between January 2015 and June 2021 with (i) an acute ischaemic stroke due to an anterior proximal occlusion, (ii) a successful thrombectomy (TICI >2a) within 6-h of symptom-onset and (iii) CT perfusion imaging were included. Core stroke volume was automatically computed using RAPID software. Two linear regression models were built that included in the null hypothesis the pre-treatment NIHSS score and the hypoperfusion volume (Tmax > 6 s) as confounding variables and 24 h post-recanalization NIHSS and 90 days mRS as outcome variables. Time to recanalization was used as covariate in one model and stroke core volume as covariate in the other. Results From a total of 377 thrombectomies, 94 matched selection criteria. The Model null hypothesis explained 37% of the variability for 24 h post-recanalization NIHSS and 42% of the variability for 90 days MRS. The core volume as covariate increased outcome variability prediction to 57 and 56%, respectively. Time to recanalization as covariate marginally increased outcome variability prediction from 37 and 34% to 40 and 42.6%, respectively. Conclusion Core stroke volume better explains outcome variability in comparison to the time to recanalization in anterior large vessel occlusion stroke with successful thrombectomy done within 6 h of symptoms onset. Still, a large part of outcome variability prediction fails to be explained by the usual predictors.
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Affiliation(s)
- Noemie Ligot
- Department of Neurology, CUB Hôpital Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Sophie Elands
- Department of Neurology, CUB Hôpital Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Charlotte Damien
- Department of Neurology, CUB Hôpital Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Lise Jodaitis
- Department of Neurology, CUB Hôpital Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Niloufar Sadeghi Meibodi
- Department of Radiology, CUB Hôpital Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Benjamin Mine
- Department of Interventional Neuroradiology, CUB Hôpital Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Thomas Bonnet
- Department of Interventional Neuroradiology, CUB Hôpital Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Adrien Guenego
- Department of Interventional Neuroradiology, CUB Hôpital Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Boris Lubicz
- Department of Interventional Neuroradiology, CUB Hôpital Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Gilles Naeije
- Department of Neurology, CUB Hôpital Erasme, Université Libre de Bruxelles (ULB), Brussels, Belgium
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Efficacy and safety of tirofiban injection with intracranial stenting in early reocclusion due to intracranial atherosclerosis. INTERDISCIPLINARY NEUROSURGERY 2022. [DOI: 10.1016/j.inat.2021.101425] [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] Open
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19
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Elsaid N, Bigliardi G, Dell'Acqua ML, Vandelli L, Ciolli L, Picchetto L, Borzì G, Ricceri R, Pentore R, Vallone S, Meletti S, Saied A. Evaluation of stroke prognostication using age and NIH Stroke Scale index (SPAN-100 index) in delayed intravenous thrombolysis patients (beyond 4.5 hours). J Stroke Cerebrovasc Dis 2022; 31:106384. [PMID: 35182948 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 01/05/2022] [Accepted: 01/30/2022] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVES the efficacy of delayed intravenous tissue plasminogen activator (tPA), beyond the 4.5 h window, is evolving. Advanced age and high admission National Institutes of Health Stroke Scale (NIHSS) score are proposed to adversely affect the outcome of delayed thrombolysis and limit the inclusion criteria. The summation of patient age and admission NIHSS score was introduced as the SPAN-100 index as a tool of prediction of the clinical outcome after acute ischemic stroke (AIS). We aimed to assess the SPAN-100 index in AIS thrombolysed patients after 4.5 h. MATERIALS AND METHODS The SPAN-100 index was applied to AIS patients receiving delayed IV thrombolysis (IVT) after 4.5 h. Patients demographics, risk factors, clinical, laboratory and radiological data, mismatch evidence, treatment onset and modality, NIHSS score at baseline and at discharge, and 3 months follow-up modified Rankin Scale (mRS) were reviewed. SPAN-100 score ≥ 100 is classified as SPAN-100 positive while score < 100 is SPAN-100 negative. Clinical outcomes, death and intracerebral hemorrhage (ICH) incidences were compared between SPAN-100 positive and negative groups. RESULTS SPAN-100-positive delayed IVT-patients (11/136) had a 6-fold increased risk for unfavorable outcome compared to SPAN-negative patients (OR 6.34; 95% CI 1.59-25.24 p=0.004), however there was no relation between the SPAN-100 positivity and mortality or ICH. CONCLUSION SPAN-100-positive patients are more likely to achieve non-favorable outcome with delayed IVT in comparison to the SPAN-100-negative patients. SPAN-100 index may influence the eligibility criteria of delayed thrombolysis.
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Affiliation(s)
- Nada Elsaid
- Stroke Unit - Neurology Clinic, Department of Neuroscience, Ospedale Civile di Baggiovara, AOU di Modena, Italy; Department of Neurology, Faculty of Medicine, Mansoura University, Mansoura 35511, Egypt.
| | - Guido Bigliardi
- Stroke Unit - Neurology Clinic, Department of Neuroscience, Ospedale Civile di Baggiovara, AOU di Modena, Italy.
| | - Maria Luisa Dell'Acqua
- Stroke Unit - Neurology Clinic, Department of Neuroscience, Ospedale Civile di Baggiovara, AOU di Modena, Italy.
| | - Laura Vandelli
- Stroke Unit - Neurology Clinic, Department of Neuroscience, Ospedale Civile di Baggiovara, AOU di Modena, Italy.
| | - Ludovico Ciolli
- Stroke Unit - Neurology Clinic, Department of Neuroscience, Ospedale Civile di Baggiovara, AOU di Modena, Italy.
| | - Livio Picchetto
- Stroke Unit - Neurology Clinic, Department of Neuroscience, Ospedale Civile di Baggiovara, AOU di Modena, Italy.
| | - Giuseppe Borzì
- Stroke Unit - Neurology Clinic, Department of Neuroscience, Ospedale Civile di Baggiovara, AOU di Modena, Italy.
| | - Riccardo Ricceri
- Stroke Unit - Neurology Clinic, Department of Neuroscience, Ospedale Civile di Baggiovara, AOU di Modena, Italy.
| | - Roberta Pentore
- Stroke Unit - Neurology Clinic, Department of Neuroscience, Ospedale Civile di Baggiovara, AOU di Modena, Italy.
| | - Stefano Vallone
- Neuroradiology, Department of Neuroscience, Ospedale Civile di Baggiovara, AOU di Modena, Italy.
| | - Stefano Meletti
- Stroke Unit - Neurology Clinic, Department of Neuroscience, Ospedale Civile di Baggiovara, AOU di Modena, Italy.
| | - Ahmed Saied
- Stroke Unit - Neurology Clinic, Department of Neuroscience, Ospedale Civile di Baggiovara, AOU di Modena, Italy; Department of Neurology, Faculty of Medicine, Mansoura University, Mansoura 35511, Egypt.
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20
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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: 1] [Impact Index Per Article: 0.3] [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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21
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Kremers F, Venema E, Duvekot M, Yo L, Bokkers R, Lycklama À. Nijeholt G, van Es A, van der Lugt A, Majoie C, Burke J, Roozenbeek B, Lingsma H, Dippel D. Outcome Prediction Models for Endovascular Treatment of Ischemic Stroke: Systematic Review and External Validation. Stroke 2021; 53:825-836. [PMID: 34732070 PMCID: PMC8884132 DOI: 10.1161/strokeaha.120.033445] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Supplemental Digital Content is available in the text. Prediction models for outcome of patients with acute ischemic stroke who will undergo endovascular treatment have been developed to improve patient management. The aim of the current study is to provide an overview of preintervention models for functional outcome after endovascular treatment and to validate these models with data from daily clinical practice.
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Affiliation(s)
- Femke Kremers
- Neurology, Erasmus Medical Center, Erasmus MC Stroke Center, Rotterdam, the Netherlands (F.K., E.V., M.D., B.R., D.D.)
| | - Esmee Venema
- Neurology, Erasmus Medical Center, Erasmus MC Stroke Center, Rotterdam, the Netherlands (F.K., E.V., M.D., B.R., D.D.)
- Public Health, Erasmus Medical Center, Rotterdam, the Netherlands (E.V., H.L.)
| | - Martijne Duvekot
- Neurology, Erasmus Medical Center, Erasmus MC Stroke Center, Rotterdam, the Netherlands (F.K., E.V., M.D., B.R., D.D.)
- Neurology, Albert Schweitzer Hospital, Dordrecht, the Netherlands (M.D.)
| | - Lonneke Yo
- Radiology, Catharina Medical Center, Eindhoven, the Netherlands (L.Y.)
| | - Reinoud Bokkers
- Radiology, UMCG Groningen Medical Center, the Netherlands (R.B.)
| | | | - Adriaan van Es
- Radiology, Leiden Medical Center, the Netherlands (A.v.E.)
| | - Aad van der Lugt
- Radiology, Erasmus Medical Center, Rotterdam, the Netherlands (A.v.d.L.)
| | - Charles Majoie
- Radiology, Amsterdam Medical Center, the Netherlands (C.M.)
| | - James Burke
- Neurology, University of Michigan, Ann Arbor (J.B.)
| | - Bob Roozenbeek
- Neurology, Erasmus Medical Center, Erasmus MC Stroke Center, Rotterdam, the Netherlands (F.K., E.V., M.D., B.R., D.D.)
| | - Hester Lingsma
- Public Health, Erasmus Medical Center, Rotterdam, the Netherlands (E.V., H.L.)
| | - Diederik Dippel
- Neurology, Erasmus Medical Center, Erasmus MC Stroke Center, Rotterdam, the Netherlands (F.K., E.V., M.D., B.R., D.D.)
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22
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Cirillo L, Romano DG, Vornetti G, Frauenfelder G, Tamburrano C, Taglialatela F, Isceri S, Saponiero R, Napoletano R, Gentile M, Romoli M, Princiotta C, Simonetti L, Zini A. Acute ischemic stroke with cervical internal carotid artery steno-occlusive lesion: multicenter analysis of endovascular approaches. BMC Neurol 2021; 21:362. [PMID: 34535118 PMCID: PMC8447719 DOI: 10.1186/s12883-021-02393-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 09/08/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Occlusion of the internal carotid artery (ICA), whether isolated or in the setting of a tandem lesion (TL) have a poor response to treatment with intravenous thrombolysis. Previous studies have demonstrated the superiority of mechanical thrombectomy in the treatment of acute ischemic stroke (AIS) following large vessel occlusion, compared to standard intravenous fibrinolysis. The aim of our study was to describe endovascular treatment (EVT) in AIS due to isolated ICA occlusion or TL. METHODS We assessed the association between 90-day outcome and clinical, demographic, imaging, and procedure data in 51 consecutive patients with acute isolated ICA occlusion or TL who underwent EVT. We evaluated baseline NIHSS and mRS, ASPECTS, type of occlusion, stent placement, use of stent retrievers and/or thromboaspiration, duration of the procedure, mTICI, postprocedural therapy and complications. RESULTS A favorable 90-day outcome (mRS 0-2) was achieved in 34 patients (67 %) and was significantly associated with the use of dual antiplatelet therapy after the procedure (p = 0.008), shorter procedure duration (p = 0.031), TICI 2b-3 (p < 0.001) and lack of post-procedural hemorrhagic transformation (p = 0.001). Four patients did not survive, resulting in a mortality rate of 8 %. CONCLUSIONS Our study has shown that EVT in the treatment of AIS due to ICA occlusion is safe, and effective in determining a good functional outcome. ICA stenting led to good angiographic results and therapy with a glycoprotein IIb / IIIa inhibitor immediately after stent release did not result in a greater risk of hemorrhage. The use of post-procedural dual antiplatelet therapy was associated with favorable outcome, without a significant increase in hemorrhagic transformation.
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Affiliation(s)
- Luigi Cirillo
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, Bologna, Italy. .,UOSI Neuroradiologia Ospedale Maggiore CA Pizzardi - IRCCS delle scienze Neurologiche di Bologna, Bologna, Italy.
| | | | - Gianfranco Vornetti
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, Bologna, Italy
| | - Giulia Frauenfelder
- UOC Neuroradiologia AOU S. Giovanni di Dio e Ruggi d'Aragona, Salerno, Italy
| | - Chiara Tamburrano
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, Bologna, Italy
| | - Francesco Taglialatela
- UOSI Neuroradiologia Ospedale Maggiore CA Pizzardi - IRCCS delle scienze Neurologiche di Bologna, Bologna, Italy
| | - Salvatore Isceri
- UOSI Neuroradiologia Ospedale Maggiore CA Pizzardi - IRCCS delle scienze Neurologiche di Bologna, Bologna, Italy
| | - Renato Saponiero
- UOC Neuroradiologia AOU S. Giovanni di Dio e Ruggi d'Aragona, Salerno, Italy
| | - Rosa Napoletano
- UOC Neurologia AOU S. Giovanni di Dio e Ruggi d'Aragona, Salerno, Italy
| | - Mauro Gentile
- UOC Neurologia e Rete Stroke metropolitana Ospedale Maggiore CA Pizzardi - IRCCS delle scienze Neurologiche di Bologna, Bologna, Italy
| | - Michele Romoli
- UOC Neurologia e Rete Stroke metropolitana Ospedale Maggiore CA Pizzardi - IRCCS delle scienze Neurologiche di Bologna, Bologna, Italy
| | - Ciro Princiotta
- UOSI Neuroradiologia Ospedale Maggiore CA Pizzardi - IRCCS delle scienze Neurologiche di Bologna, Bologna, Italy
| | - Luigi Simonetti
- UOSI Neuroradiologia Ospedale Maggiore CA Pizzardi - IRCCS delle scienze Neurologiche di Bologna, Bologna, Italy
| | - Andrea Zini
- UOC Neurologia e Rete Stroke metropolitana Ospedale Maggiore CA Pizzardi - IRCCS delle scienze Neurologiche di Bologna, Bologna, Italy
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23
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Ospel JM, Brown S, Kappelhof M, van Zwam W, Jovin T, Roy D, Campbell BCV, Mitchell P, Roos Y, Guillemin F, Buck B, Muir K, Bracard S, White P, du Mesnil de Rochemont R, Goyal M. Comparing the Prognostic Impact of Age and Baseline National Institutes of Health Stroke Scale in Acute Stroke due to Large Vessel Occlusion. Stroke 2021; 52:2839-2845. [PMID: 34233465 DOI: 10.1161/strokeaha.120.032364] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Johanna Maria Ospel
- Department of Clinical Neurosciences (J.M.O., M.G.), University of Calgary, Alberta, Canada.,Department of Neuroradiology, University Hospital Basel, Switzerland (J.M.O.)
| | - Scott Brown
- Altair Biostatistics, St Louis Park, MN (S.B.)
| | - Manon Kappelhof
- Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, the Netherlands (M.K.)
| | - Wim van Zwam
- Department of Radiology and Nuclear Medicine, Cardiovascular Research Institute Maastricht, School for Mental Health and Sciences, Maastricht University Medical Center, the Netherlands (W.v.Z.)
| | - Tudor Jovin
- Department of Neurology, University of Pittsburgh, PA (T.J.)
| | - Daniel Roy
- Centre Hospitalier de l'Université de Montréal, Canada (D.R.)
| | - Bruce C V Campbell
- Department of Medicine and Neurology, Royal Melbourne Hospital, University of Melbourne, Parkville, Australia (B.C.V.C.)
| | - Peter Mitchell
- Department of Radiology, Royal Melbourne Hospital, Parkville, Victoria, Australia (P.M.)
| | - Yvo Roos
- Department of Neurology, Amsterdam UMC, University of Amsterdam, the Netherlands (Y.R.)
| | - Francis Guillemin
- Department of Clinical Epidemiology, Université de Lorraine, University Hospital of Nancy, France (F.G.)
| | - Brian Buck
- University of Alberta Hospital, Edmonton, Canada (B.B.)
| | - Keith Muir
- Institute of Neuroscience and Psychology, University of Glasgow, Scotland (K.M.)
| | - Serge Bracard
- Department of Radiology, Université de Lorraine, Nancy, France (S.B.)
| | - Phil White
- Department of Radiology, Newcastle University, Newcastle Upon Tyne, United Kingdom (P.W.)
| | | | - Mayank Goyal
- Department of Clinical Neurosciences (J.M.O., M.G.), University of Calgary, Alberta, Canada.,Department of Radiology (M.G.), University of Calgary, Alberta, Canada
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24
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Bres-Bullrich M, Fridman S, Sposato LA. Relative Effect of Stroke Severity and Age on Outcomes of Mechanical Thrombectomy in Acute Ischemic Stroke. Stroke 2021; 52:2846-2848. [PMID: 34233461 DOI: 10.1161/strokeaha.121.034946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Maria Bres-Bullrich
- Department of Clinical Neurological Sciences (M.B.-B., S.F., L.A.S.), Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Sebastian Fridman
- Department of Clinical Neurological Sciences (M.B.-B., S.F., L.A.S.), Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Luciano A Sposato
- Department of Clinical Neurological Sciences (M.B.-B., S.F., L.A.S.), Schulich School of Medicine and Dentistry, Western University, London, ON, Canada.,Department of Epidemiology and Biostatistics (L.A.S.), Schulich School of Medicine and Dentistry, Western University, London, ON, Canada.,Department of Anatomy and Cell Biology (L.A.S.), Schulich School of Medicine and Dentistry, Western University, London, ON, Canada.,Heart & Brain Laboratory (L.A.S.), Western University, London, ON, Canada.,Robarts Research Institute (L.A.S.), Western University, London, ON, Canada.,Lawson Health Research Institute, London, ON, Canada (L.A.S.)
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25
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Lee EJ, Bae J, Jeong HB, Lee EJ, Jeong HY, Yoon BW. Effectiveness of mechanical thrombectomy in cancer-related stroke and associated factors with unfavorable outcome. BMC Neurol 2021; 21:57. [PMID: 33549056 PMCID: PMC7866628 DOI: 10.1186/s12883-021-02086-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 01/25/2021] [Indexed: 11/20/2022] Open
Abstract
Background The effectiveness of mechanical thrombectomy (MT) in cancer-related stroke (CRS) is largely unknown. This study aims to investigate the clinical and radiological outcomes of MT in CRS patients. We also explored the factors that independently affect functional outcomes of patients with CRS after MT. Methods We retrospectively reviewed 341 patients who underwent MT after acute ischemic stroke onset between May 2014 and May 2020. We classified the patients into CRS (n = 34) and control (n = 307) groups and compared their clinical details. Among CRS patients, we analyzed the groups with and without good outcomes (3-months modified Rankin scale [mRS] score 0, 1, 2). Multivariate analysis was performed to investigate the independent predictors of unfavorable outcomes in patients with CRS after MT. Results A total of 341 acute ischemic stroke patients received MT, of whom 34 (9.9%) had CRS. Although the baseline National institute of health stroke scale (NIHSS) score and the rate of successful recanalization was not significantly different between CRS patients and control group, CRS patients showed more any cerebral hemorrhage after MT (41.2% vs. controls 23.8%, p = 0.037) and unfavorable functional outcome at 3 months (CRS patients median 3-month mRS score 4, interquartile range [IQR] 2 to 5.25 vs. controls median 3-month mRS score 3, IQR 1 to 4, [p = 0.026]). In the patients with CRS, elevated serum D-dimer level and higher baseline NIHSS score were independently associated with unfavorable functional outcome at 3 months (adjusted odds ratio [aOR]: 1.524, 95% confidence interval [CI]: 1.043–2.226; aOR: 1.264, 95% CI: 1.010–1.582, respectively). Conclusions MT is an appropriate therapeutic treatment for revascularization in CRS patients. However, elevated serum D-dimer levels and higher baseline NIHSS scores were independent predictors of unfavorable outcome. Further research is warranted to evaluate the significance of these predictors.
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Affiliation(s)
- Eung-Joon Lee
- Department of Neurology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Jeonghoon Bae
- Department of Neurology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Hae-Bong Jeong
- Department of Neurology, Chung-Ang University Hospital, Seoul, Republic of Korea
| | - Eun Ji Lee
- Department of Radiology, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - Han-Yeong Jeong
- Department of Neurology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Byung-Woo Yoon
- Department of Neurology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
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26
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Wu D, Guo F, Liu D, Hu R, Shen Z, Yang Y, Wang Y, Xu Y, Li L. Characteristics and prognosis of acute basilar artery occlusion in minor to moderate stroke and severe stroke after endovascular treatment: A multicenter retrospective study. Clin Neurol Neurosurg 2021; 202:106504. [PMID: 33535127 DOI: 10.1016/j.clineuro.2021.106504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 10/22/2022]
Abstract
OBJECTIVE We aimed to investigate characteristics and outcomes of patients receiving mechanical thrombectomy (MT) between minor to moderate stroke and severe stroke caused by acute basilar artery occlusion (BAO). METHODS We retrospectively reviewed the data of all patients with BAO who underwent MT from three stroke centers between January 2016 and January 2020. The patients were dichotomized as minor to moderate or severe stroke group according to their admission National Institutes of Health Stroke Scale (NIHSS) score <21and ≥21. Patient characteristics, imaging findings, and outcomes were compared between the two groups. RESULTS A total of 72 patients were included in this study. The posterior circulation Alberta Stroke Program Early CT Score (PC-ASPECTS) in the minor to moderate stroke patients were significantly higher than that of patients with severe stroke (P = 0.013). The good posterior circulation collateral scores (PC-CS) (6-10) were more commonly found in patients with minor to moderate stroke than in patients with severe stroke (58.14 % vs 10.34 %,P < 0.001). There were similar rates of successful recanalization between the two groups. Patients with minor to moderate stroke had a higher rate of favorable outcomes (mRS score 0-2, 60.47 % vs 20.69 %, P = 0.002) and a lower rate of periprocedural complications (4.65 % vs 31.03 %, P = 0.005) and mortality (4.65 % vs 24.14 %, P = 0.026) at 3 months after MT compared with the patients with severe stroke. CONCLUSIONS Acute BAO patients with minor to moderate stroke had better posterior circulation collateral and had better outcomes after MT than those patients with severe stroke.
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Affiliation(s)
- Dayu Wu
- Department of Neurology, Gongli Hospital, Shanghai, 200135, PR China
| | - Fei Guo
- Department of Neurology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, 518052, PR China
| | - Diyan Liu
- Department of Neurology, Wuchang Hospital, Wuhan, 430063, PR China
| | - Rongguo Hu
- Department of Neurology, Gongli Hospital, Shanghai, 200135, PR China
| | - Zhenkun Shen
- Department of Neurology, Gongli Hospital, Shanghai, 200135, PR China
| | - Yuwei Yang
- Department of Intervention, Gongli Hospital, Shanghai, 200135, PR China
| | - Yane Wang
- Department of Intervention, Gongli Hospital, Shanghai, 200135, PR China
| | - Yumei Xu
- Department of Neurology, Gongli Hospital, Shanghai, 200135, PR China
| | - Longxuan Li
- Department of Neurology, Gongli Hospital, Shanghai, 200135, PR China.
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27
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Leker RR, Kasner SE, El Hasan HA, Sacagiu T, Honig A, Gomori JM, Guan S, Choudhry O, Hurst RW, Kung D, Pukenas B, Sedora-Roman N, Ramchand P, Cohen JE. Impact of carotid tortuosity on outcome after endovascular thrombectomy. Neurol Sci 2020; 42:2347-2351. [PMID: 33047199 DOI: 10.1007/s10072-020-04813-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 10/07/2020] [Indexed: 11/24/2022]
Abstract
BACKGROUND AND OBJECTIVES Endovascular thrombectomy (EVT) is efficacious in patients with large vessel occlusion stroke (LVO). We explored whether internal carotid (ICA) tortuosity increases the technical difficulty of EVT thereby lowering the chances of successful recanalization and favorable outcomes. PATIENTS AND METHODS Consecutive patients with LVO and patent ICAs who underwent EVT were included. Carotid tortuosity was determined on pre-EVT CTA and classified by raters blinded to outcomes into: type 1-straight ICA trunk and type 2-severe tortuosity potentially impeding adequate catheter placement. Thrombolysis in cerebral infarction (TICI) 2b-3 was considered successful recanalization, and 90-day-modified Rankin Scale ≤ 2 was considered favorable functional outcome. RESULTS Among 302 patients (mean age 70 ± 15, median NIHSS 17), 53% had type 1, and 47% type 2 tortuosity. Overall, 85% had successful recanalization. Patients with type 2 tortuosity were significantly older (p < 0.0001) and less frequently achieved successful recanalization (80% vs. 90%; p = 0.019) but had similar outcomes compared with those without tortuosity. On regression analysis, marked tortuosity was associated with lower chances of successful recanalization (OR 0.43 95% CI 0.20-0.92) but had no effect on clinical outcomes. CONCLUSIONS Carotid tortuosity does not appear to impact the likelihood of favorable functional outcome but may influence recanalization.
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Affiliation(s)
- Ronen R Leker
- Department of Neurology, Hadassah-Hebrew University Medical Center, P.O. Box 12000, 91120, Jerusalem, Israel.
| | - Scott E Kasner
- Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA
| | - Hosnei Abu El Hasan
- Department of Neurosurgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Tzvika Sacagiu
- Department of Neurology, Hadassah-Hebrew University Medical Center, P.O. Box 12000, 91120, Jerusalem, Israel
| | - Asaf Honig
- Department of Neurology, Hadassah-Hebrew University Medical Center, P.O. Box 12000, 91120, Jerusalem, Israel
| | - John M Gomori
- Department of Radiology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Shaobo Guan
- Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA
| | - Omar Choudhry
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Robert W Hurst
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - David Kung
- Department of Neurosurgery, University of Pennsylvania, Philadelphia, PA, USA
| | - Brian Pukenas
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Neda Sedora-Roman
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Preethi Ramchand
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Jose E Cohen
- Department of Neurosurgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
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28
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Majidi S, Lee J, Balushi AA, Fifi JT, Singh IP. Endovascular thrombectomy in octogenarians and nonagenarians with large vessel occlusion: Technical aspects and clinical outcome. J Stroke Cerebrovasc Dis 2020; 29:105120. [DOI: 10.1016/j.jstrokecerebrovasdis.2020.105120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 06/10/2020] [Accepted: 06/29/2020] [Indexed: 12/27/2022] Open
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29
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Raseta M, Bazarova A, Wright H, Parrott A, Nayak S. A novel toolkit for the prediction of clinical outcomes following mechanical thrombectomy. Clin Radiol 2020; 75:795.e15-795.e21. [PMID: 32718742 DOI: 10.1016/j.crad.2020.06.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 06/18/2020] [Indexed: 11/16/2022]
Abstract
AIM To develop a robust toolkit to aid decision-making for mechanical thrombectomy (MT) based on readily available patient variables that could accurately predict functional outcome following MT. MATERIALS AND METHODS Data from patients with anterior circulation stroke who underwent MT between October 2009 and January 2018 (n=239) were identified from our MT database. Patient explanatory variables were age, sex, National Institutes of Health Stroke Scale (NIHSS), Alberta Stroke Program Early CT Score (ASPECTS), collateral score, and Glasgow Coma Scale. Five models were developed from the data to predict five outcomes of interest: model 1: prediction of survival: modified Rankin Scale (mRS) of 0-5 (alive) or 6 (dead); model 2: prediction of good/poor outcome: mRS of 0-3 (good), or 4-6 (poor); model 3: prediction of good/poor outcome: mRS of 0-2 (good), or 3-6 (poor); model 4: prediction of mRS category: mRS of 0-2 (no disability), 3 (minor disability), 4-5 (severe disability) or 6 (dead); model 5: prediction of the exact mRs score (mRs as a continuous variable). The accuracy and discriminative power of each predictive model were tested. RESULTS Prediction of survival was 87% accurate (area under the curve [AUC] 0.89). Prediction of good/poor outcome was 91% accurate (AUC 0.94) for Model 2 and 95% accurate (AUC 0.98) for Model 3. Prediction of mRS category was 76% accurate, and increased to 98% using the "one-score-out rule". Prediction of the exact mRS value was accurate to an error of 0.89. CONCLUSIONS This novel toolkit provided accurate estimations of outcome for MT.
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Affiliation(s)
- M Raseta
- Institute for Applied Clinical Sciences, Keele University, Staffordshire, ST5 5BG, UK
| | - A Bazarova
- Institute of Cancer and Genomic Sciences, Centre for Computational Biology, University of Birmingham, 6 Mindelsohn Way, Birmingham, B15 2SY, UK
| | - H Wright
- University Hospital of North Midlands NHS Trust, Newcastle Rd, Stoke-on-Trent, ST4 6QG, UK
| | - A Parrott
- Keele University School of Medicine, Newcastle Road, Stoke-on-Trent, ST4 6QG, UK
| | - S Nayak
- University Hospital of North Midlands NHS Trust, Newcastle Rd, Stoke-on-Trent, ST4 6QG, UK.
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Nawabi J, Flottmann F, Kemmling A, Kniep H, Leischner H, Sporns P, Schön G, Hanning U, Thomalla G, Fiehler J, Broocks G. Elevated early lesion water uptake in acute stroke predicts poor outcome despite successful recanalization – When “tissue clock” and “time clock” are desynchronized. Int J Stroke 2019; 16:863-872. [DOI: 10.1177/1747493019884522] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background Ischemic water uptake in acute stroke is a reliable indicator of lesion age. Nevertheless, inter-individually varying edema progression has been observed and elevated water uptake has recently been described as predictor of malignant infarction. Aims We hypothesized that early-elevated lesion water uptake indicates accelerated “tissue clock” desynchronized with “time clock” and therefore predicts poor clinical outcome despite successful recanalization. Methods Acute middle cerebral artery stroke patients with multimodal admission-CT who received successful thrombectomy (TICI 2b/3) were analyzed. Net water uptake (NWU), a quantitative imaging biomarker of ischemic edema, was determined in admission-CT and tested as predictor of clinical outcome using modified Rankin Scale (mRS) after 90 days. A binary outcome was defined for mRS 0–4 and mRS 5–6. Results Seventy-two patients were included. The mean NWU (SD) in patients with mRS 0–4 was lower compared to patients with mRS 5–6 (5.0% vs. 12.1%; p < 0.001) with similar time from symptom onset to imaging (2.6 h vs. 2.4 h; p = 0.7). Based on receiver operating curve analysis, NWU above 10% identified patients with very poor outcome with high discriminative power (AUC 0.85), followed by Alberta Stroke Program Early CT Score (ASPECTS) (AUC: 0.72) and National Institutes of Health Stroke Scale (NIHSS) (AUC: 0.72). Conclusions Quantitative NWU may serve as an indicator of “tissue clock” and pronounced early brain edema with elevated NWU might suggest a desynchronized “tissue clock” with real “time clock” and therefore predict futile recanalization with poor clinical outcome.
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Affiliation(s)
- Jawed Nawabi
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Fabian Flottmann
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andre Kemmling
- Department of Neuroradiology, University Hospital Münster, Münster, Germany
| | - Helge Kniep
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hannes Leischner
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Peter Sporns
- Department of Radiology, University Hospital Münster, Münster, Germany
| | - Gerhard Schön
- Institute of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Uta Hanning
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Götz Thomalla
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jens Fiehler
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gabriel Broocks
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Ben Hassen W, Raynaud N, Bricout N, Boulouis G, Legrand L, Ferrigno M, Kazemi A, Bretzner M, Soize S, Farhat W, Seners P, Turc G, Zuber M, Oppenheim C, Cordonnier C, Naggara O, Henon H. MT-DRAGON score for outcome prediction in acute ischemic stroke treated by mechanical thrombectomy within 8 hours. J Neurointerv Surg 2019; 12:246-251. [PMID: 31427503 DOI: 10.1136/neurintsurg-2019-015105] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/24/2019] [Accepted: 06/29/2019] [Indexed: 01/29/2023]
Abstract
OBJECTIVES The MRI-DRAGON score includes clinical and MRI parameters and demonstrates a high specificity in predicting 3 month outcome in patients with acute ischemic stroke (AIS) treated with intravenous tissue plasminogen activator (IV tPA). The aim of this study was to adapt this score to mechanical thrombectomy (MT) in a large multicenter cohort. METHODS Consecutive cases of AIS treated by MT between January 2015 and December 2017 from three stroke centers were reviewed (n=1077). We derived the MT-DRAGON score by keeping all variables of the MRI-DRAGON score (age, initial National Institutes of Health Stroke Scale score, glucose level, pre-stroke modified Rankin Scale (mRS) score, diffusion weighted imaging-Alberta Stroke Program Early CT score ≤5) and considering the following variables: time to groin puncture instead of onset to IV tPA time and occlusion site. Unfavorable 3 month outcome was defined as a mRS score >2. Score performance was evaluated by c statistics and an external validation was performed. RESULTS Among 679 included patients (derivation and validation cohorts, n=431 and 248, respectively), an unfavorable outcome was similar between the derivation (51.5%) and validation (58.1%, P=0.7) cohorts, and was significantly associated with all MT-DRAGON parameters in the multivariable analysis. The c statistics for unfavorable outcome prediction was 0.83 (95%CI 0.79 to 0.88) in the derivation and 0.8 (95%CI 0.75 to 0.86) in the validation cohort. All patients (n=55) with an MT-DRAGONscore ≥11 had an unfavorable outcome and 60/63 (95%) patients with an MT-DRAGON score ≤2 points had a favorable outcome. CONCLUSION The MT-DRAGON score is a simple tool, combining admission clinical and radiological parameters that can reliably predict 3 month outcome after MT.
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Affiliation(s)
| | - Nicolas Raynaud
- Radiology, Centro-hospitalo Universitaire de Poitiers, Poitiers, France
| | - Nicolas Bricout
- Department of Interventional Neuroradiology, Centre Hospitalier Regional Universitaire de Lille, Lille, France
| | | | - Laurence Legrand
- Department of Neuroradiology, Centre Hospitalier Sainte Anne, Paris, France
| | - Marc Ferrigno
- Inserm U1171-Degenerative and Vascular Cognitive Disorders, Lille, France.,Neurology-Stroke Unit, Univ Lille, CHU Lille, Lille, France
| | - Apolline Kazemi
- Interventional Neuroradiology, Univ Lille, CHU Lille, Lille, France
| | - Martin Bretzner
- Department of Interventional Neuroradiology, Centre Hospitalier Regional Universitaire de Lille, Lille, France
| | | | - Wassim Farhat
- Neurology, Centre Hospitalier Saint Joseph, Paris, France
| | - Pierre Seners
- Department of Neurorlogy, Centre Hospitalier Sainte Anne, Paris, France
| | - Guillaume Turc
- Department of Neurorlogy, Centre Hospitalier Sainte Anne, Paris, France
| | - Mathieu Zuber
- Neurology, Groupe Hospitalier Paris Saint Joseph, Paris, Île-de-France, France
| | | | | | | | - Hilde Henon
- Department of Vascular Neurology, Centre Hospitalier Regional Universitaire de Lille, Lille, France
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Nishi H, Oishi N, Ishii A, Ono I, Ogura T, Sunohara T, Chihara H, Fukumitsu R, Okawa M, Yamana N, Imamura H, Sadamasa N, Hatano T, Nakahara I, Sakai N, Miyamoto S. Predicting Clinical Outcomes of Large Vessel Occlusion Before Mechanical Thrombectomy Using Machine Learning. Stroke 2019; 50:2379-2388. [PMID: 31409267 DOI: 10.1161/strokeaha.119.025411] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Purpose- The clinical course of acute ischemic stroke with large vessel occlusion (LVO) is a multifactorial process with various prognostic factors. We aimed to model this process with machine learning and predict the long-term clinical outcome of LVO before endovascular treatment and to compare our method with previously developed pretreatment scoring methods. Methods- The derivation cohort included 387 LVO patients, and the external validation cohort included 115 LVO patients with anterior circulation who were treated with mechanical thrombectomy. The statistical model with logistic regression without regularization and machine learning algorithms, such as regularized logistic regression, linear support vector machine, and random forest, were used to predict good clinical outcome (modified Rankin Scale score of 0-2 at 90 days) with standard and multiple pretreatment clinical variables. Five previously reported pretreatment scoring methods (the Pittsburgh Response to Endovascular Therapy score, the Stroke Prognostication Using Age and National Institutes of Health Stroke Scale index, the Totaled Health Risks in Vascular Events score, the Houston Intra-Arterial Therapy score, and the Houston Intra-Arterial Therapy 2 score) were compared with these models for the area under the receiver operating characteristic curve. Results- The area under the receiver operating characteristic curve of random forest, which was the worst among the machine learning algorithms, was significantly higher than those of the standard statistical model and the best model among the previously reported pretreatment scoring methods in the derivation (the area under the receiver operating characteristic curve were 0.85±0.07 for random forest, 0.78±0.08 for logistic regression without regularization, and 0.77±0.09 for Stroke Prognostication using Age and National Institutes of Health Stroke Scale) and validation cohorts (the area under the receiver operating characteristic curve were 0.87±0.01 for random forest, 0.56±0.07 for logistic regression without regularization, and 0.83±0.00 for Pittsburgh Response to Endovascular Therapy). Conclusions- Machine learning methods with multiple pretreatment clinical variables can predict clinical outcomes of patients with anterior circulation LVO who undergo mechanical thrombectomy more accurately than previously developed pretreatment scoring methods.
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Affiliation(s)
- Hidehisa Nishi
- Form the Department of Neurosurgery (H.N., I.O., M.O., S.M.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Naoya Oishi
- Medical Innovation Center (N.O.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akira Ishii
- Department of Neurology (A.I.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Isao Ono
- Form the Department of Neurosurgery (H.N., I.O., M.O., S.M.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takenori Ogura
- Department of Neurosurgery, Kokura Memorial Hospital, Kitakyushu, Japan (T.O., H.C., T.H.)
| | - Tadashi Sunohara
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Japan (T.S., R.F., H.I., N. Sakai)
| | - Hideo Chihara
- Department of Neurosurgery, Kokura Memorial Hospital, Kitakyushu, Japan (T.O., H.C., T.H.)
| | - Ryu Fukumitsu
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Japan (T.S., R.F., H.I., N. Sakai)
| | - Masakazu Okawa
- Form the Department of Neurosurgery (H.N., I.O., M.O., S.M.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Norikazu Yamana
- Department of Neurosurgery, Koseikai Takeda Hospital, Kyoto, Japan (N.Y., N. Sadamasa)
| | - Hirotoshi Imamura
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Japan (T.S., R.F., H.I., N. Sakai)
| | - Nobutake Sadamasa
- Department of Neurosurgery, Koseikai Takeda Hospital, Kyoto, Japan (N.Y., N. Sadamasa)
| | - Taketo Hatano
- Department of Neurosurgery, Kokura Memorial Hospital, Kitakyushu, Japan (T.O., H.C., T.H.)
| | - Ichiro Nakahara
- Department of Comprehensive Strokology, Fujita Health University School of Medicine, Toyoake, Japan (I.N.)
| | - Nobuyuki Sakai
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Japan (T.S., R.F., H.I., N. Sakai)
| | - Susumu Miyamoto
- Form the Department of Neurosurgery (H.N., I.O., M.O., S.M.), Kyoto University Graduate School of Medicine, Kyoto, Japan
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Zhao XJ, Li QX, Chang LS, Zhang J, Wang DL, Fan HY, Zheng FX, Wang XJ. Evaluation of the Application of APACHE II Combined With NIHSS Score in the Short-Term Prognosis of Acute Cerebral Hemorrhage Patient. Front Neurol 2019; 10:475. [PMID: 31293492 PMCID: PMC6598469 DOI: 10.3389/fneur.2019.00475] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 04/23/2019] [Indexed: 11/24/2022] Open
Abstract
Objective: This study aims to evaluate the effects of combining Acute Physiology and Chronic Health Disease Classification System II (APACHE II) scores and the NIHSS score for short-term prognosis of cerebral hemorrhage patients. Methods: APACHE II and NIHSS scores were respectively carried out for 189 acute cerebral hemorrhage patients who were admitted to the hospital for 24 h, and the area under ROC curve was used to measure the ability of these score systems to forecast the prognosis, in order to find the best dividing value. The discriminant analysis method should be used to carry out a comprehensive analysis of these two score methods and establish the mathematical model to provide a reasonable basis for accurately mastering these illness conditions, and its prognosis. Results: The areas under the ROC curve of APACHE II and NIHSS scores in forecasting cerebral hemorrhage prognosis was 0.853 and 0.845, respectively, the dividing value was 15 and 17, respectively, and the forecasting accuracy was 77.2 and 79.9%, respectively; The forecasting accuracy of the combined discrimination model was 85.96%. Conclusion: APACHE II and NIHSS scores have good forecasting value to the short-term prognosis of acute cerebral hemorrhage patients, and the combination of these two can provide a higher forecasting value.
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Affiliation(s)
- Xiao-Jing Zhao
- Department of Neurology, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Qun-Xi Li
- Department of Neurosurgery, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Li-Sha Chang
- Department of Neurology, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Jiang Zhang
- Department of Neurology, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Da-Li Wang
- Department of Neurology, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Hai-Yan Fan
- Department of Neurology, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Fu-Xia Zheng
- Department of Neurology, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
| | - Xiu-Jie Wang
- Department of Neurology, Affiliated Hospital of North China University of Science and Technology, Tangshan, China
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Gavriliuc P, Kharouba R, Cohen J, Gomori J, Yaghmour N, Leker R. Clot length does not impact outcome following thrombectomy. J Neurol Sci 2018; 395:91-94. [DOI: 10.1016/j.jns.2018.09.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 09/23/2018] [Accepted: 09/25/2018] [Indexed: 10/28/2022]
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Alawieh A, Starke RM, Chatterjee AR, Turk A, De Leacy R, Rai AT, Fargen K, Kan P, Singh J, Vilella L, Nascimento FA, Dumont TM, McCarthy D, Spiotta AM. Outcomes of endovascular thrombectomy in the elderly: a ‘real-world’ multicenter study. J Neurointerv Surg 2018; 11:545-553. [DOI: 10.1136/neurintsurg-2018-014289] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/26/2018] [Accepted: 10/02/2018] [Indexed: 11/03/2022]
Abstract
BackgroundThe efficacy of endovascular thrombectomy (ET) for acute ischemic stroke (AIS) in octogenarians is still controversial.ObjectiveTo evaluate, using a large multicenter cohort of patients, outcomes after ET in octogenarians compared with younger patients.MethodsData from prospectively maintained databases of patients undergoing ET for AIS at seven US-based comprehensive stroke centers between January 2013 and January 2018 were reviewed. Demographic, procedural, and outcome variables were collected. Outcomes included 90-day modified Rankin Scale (mRS) score, postprocedural National Institutes of Health Stroke Scale score, postprocedural hemorrhage, and mortality. Univariate and multivariate analyses were performed to assess the independent effect of age ≥80 on outcome measures. Subgroup analyses were also performed based on location of stroke, success of recanalization, or ET technique used.ResultsRates of functional independence (mRS score 0–2) after ET in elderly patients were significantly lower than for younger counterparts. Age ≥80 was independently associated with increased mortality and poor outcome. Age ≥80 showed an independent negative prognostic effect on outcome even when patients were divided according to thrombectomy technique, location of stroke, or success of recanalization. Age ≥80 independently predicted higher rate of postprocedural hemorrhage, but not success of recanalization. Baseline deficit and number of reperfusion attempts, but not Thrombolysis in Cerebral Infarction score were associated with lower odds of good outcome.ConclusionThe large effect size of ET on AIS outcomes is significantly diminished in the elderly population when using comparable selection criteria to those used in younger counterparts. This raises concerns about the risk–benefit ratio and the cost-effectiveness of performing this procedure in the elderly before optimizing patient selection.
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Möbius C, Blinzler C, Schwab S, Köhrmann M, Breuer L. Re-evaluation of the stroke prognostication using age and NIH Stroke Scale index (SPAN-100 index) in IVT patients - the-SPAN 100 65 index. BMC Neurol 2018; 18:129. [PMID: 30157792 PMCID: PMC6114699 DOI: 10.1186/s12883-018-1126-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 08/14/2018] [Indexed: 01/19/2023] Open
Abstract
Background The SPAN-100 index adds patient age and baseline NIHSS-score and was introduced to predict clinical outcome after acute ischemic stroke (AIS). Even with high NIHSS-scores younger patients cannot reach a SPAN-100-positive status (index ≥100). We aimed to evaluate the SPAN-100 index among a large, contemporary cohort of i.v.-thrombolysed AIS-patients and exclusively among older patients who can at least theoretically achieve SPAN-100-positivity. Methods The SPAN-100 index was applied to AIS-patients receiving i.v.-thrombolysis (IVT) in our institution between 01/2006 and 01/2013. Clinical outcome and symptomatic intracerebral hemorrhage rates were compared between SPAN-100-positive and -negative patients. Furthermore we excluded patients < 65 years, without any theoretical chance to achieve SPAN-100-positivity, and re-evaluated the index (SPAN65–100 index). Results SPAN-100-positive IVT-patients (124/1002) had a 9-fold increased risk for unfavorable outcome compared to SPAN-negative patients (OR 9.39; 95% CI 5.87–15.02; p < 0.001). The odds ratio for mortality was 7.48 (95% CI 4.90–11.43; p < 0.001). No association was found between SPAN-100-positivity and sICH-incidence (OR 0.88; 95% CI 0.31–2.53; p = 0.810). SPAN65–100-positivity (124/741) was associated with an 8-fold increased risk for unfavorable outcome (OR 7.6; 95% CI 4.71–12.22; p < 0.001) but not associated with higher sICH-rates (OR 0.86; 95% CI 0.29–2.53; p < 0.001). Conclusions Also for patients ≥65 years the SPAN-100 index can be a fast, easy method to predict clinical outcome of IVT-patients in everyday practice. However, it should not be used to determine the risk of sICH after IVT. Based on a SPAN-positive status IVT should not be withheld from AIS-patients merely because of feared sICH-complications.
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Affiliation(s)
- Cornelia Möbius
- Department of Neurology, Universitätsklinikum Erlangen, Schwabachanlage 6, 91054, Erlangen, Germany
| | - Christian Blinzler
- Department of Neurology, Universitätsklinikum Erlangen, Schwabachanlage 6, 91054, Erlangen, Germany
| | - Stefan Schwab
- Department of Neurology, Universitätsklinikum Erlangen, Schwabachanlage 6, 91054, Erlangen, Germany
| | - Martin Köhrmann
- Department of Neurology, Universitätsklinikum Essen, Hufelandstr. 55, 45147, Essen, Germany
| | - Lorenz Breuer
- Department of Neurology, Universitätsklinikum Erlangen, Schwabachanlage 6, 91054, Erlangen, Germany.
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Raza SA, Rangaraju S. A Review of Pre-Intervention Prognostic Scores for Early Prognostication and Patient Selection in Endovascular Management of Large Vessel Occlusion Stroke. INTERVENTIONAL NEUROLOGY 2018; 7:171-181. [PMID: 29719555 PMCID: PMC5920952 DOI: 10.1159/000486539] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 12/26/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND Endovascular therapy (ET) has emerged as a highly effective treatment for acute large vessel occlusion stroke (LVOS). Tools that facilitate optimal patient selection of patients for ET are needed in order to maximize therapeutic benefit in a cost-effective manner. Several pre-intervention prognostic scores for prediction of outcomes in LVOS patients and patient selection for ET have been developed and validated, but their clinical use has been limited. Here, we review existing pre-intervention prognostic scores, compare their prognostic accuracies and levels of validation and identify gaps in current knowledge. SUMMARY We have reviewed published literature pertinent to development, validation, and implementation of pre-intervention prognostic scores for LVOS. Using receiver operating characteristic curve analysis, the prognostic accuracies of validated pre-interventional scores (Pittsburgh Response to Endovascular therapy [PRE], Totaled Health Risks in Vascular Events [THRIVE], Houston Intra-Arterial Therapy-2 (HIAT-2), Stroke Prognostication using Age and NIHSS [SPAN-100]) were compared in published work. Pre-intervention scores predicted functional out comes at 3 months with moderate prognostic accuracies (area under the receiver operator characteristic curve range 0.68-0.73). Using successful reperfusion (mTICI 2B/3) as the therapeutic objective of ET and 3-month modified Rankin Score 0-2 as good clinical outcome, patients most likely to clinically benefit from endovascular reperfusion can be identified using the PRE and HIAT-2 scores. Scores that incorporate collateral imaging or perfusion-based estimation of core and penumbra have not been published. Existing scores are predominantly limited to anterior circulation LVOS, and implementation studies of pre-interventional scores are lacking. KEY MESSAGES Pre-intervention prognostic scores can serve as useful adjuncts for patient selection in ET for acute LVOS. Pre-intervention scores including HIAT-2, THRIVE, SPAN-100, and PRE have comparable moderate prognostic accuracies for good 3-month outcomes and can identify patients who derive maximal benefit from successful reperfusion. Improvements in prognostic accuracy may be achieved by incorporating variables such as collateral status and perfusion imaging data. Implementation and impact studies using pre-intervention scores are needed to guide clinical application.
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Ota T, Nishiyama Y, Koizumi S, Saito T, Ueda M, Saito N. Impact of onset-to-groin puncture time within three hours on functional outcomes in mechanical thrombectomy for acute large-vessel occlusion. Interv Neuroradiol 2017; 24:162-167. [PMID: 29237321 DOI: 10.1177/1591019917747247] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Introduction Endovascular treatment for acute ischemic stroke with acute large-vessel occlusion (ALVO) has established benefits, and rapid treatment is vital for mechanical thrombectomy in ALVO. Time from onset of stroke to groin puncture (OTP) is a practical and useful clinical marker, and OTP should be shortened to obtain the maximum benefit of thrombectomy. Objective The aim of the present study was to assess the impact of early treatment of anterior circulation stroke within three hours after symptom onset and to evaluate the role of OTP in determining outcomes after endovascular therapy. Methods Consecutive patients with acute stroke due to major artery (internal carotid or middle cerebral arteries) occlusion who underwent endovascular recanalization between March 2014 and January 2017 were retrospectively evaluated. Patients were stratified by OTP into three categories: 0-≤3 h, >3-≤6 h, and >6 h. The primary outcome measure was a 90-day modified Rankin scale score of 0-2 (good outcome). Results Data were analyzed from 100 patients (mean age, 76.6 years; mean National Institutes of Health Stroke Scale score, 17). Groin puncture occurred within 0-≤3 h in 51 patients, >3-≤6 h in 28, and >6 h in 21. Median OTP in each group was 126 min (range, 57-168 min), 238 min (range, 186-360 min) and 728 min (range, 365-1492 min), respectively. On multivariable logistic regression analysis, category of OTP represented an independent predictor of patient outcome (adjusted odds ratio, 0.48; 95% confidence interval, 0.25-0.93; p = 0.029). Conclusions OTP is a prehospital and in-hospital workflow-based indicator. In this single-center study, OTP was found to independently affect functional outcomes after endovascular stroke treatment.
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Affiliation(s)
- Takahiro Ota
- 1 Department of Neurosurgery, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Yasuhiro Nishiyama
- 2 Department of Neurology and Stroke Medicine, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Satoshi Koizumi
- 1 Department of Neurosurgery, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Tomonari Saito
- 2 Department of Neurology and Stroke Medicine, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Masayuki Ueda
- 2 Department of Neurology and Stroke Medicine, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Nobuhito Saito
- 3 Department of Neurosurgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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Can adjunctive therapies augment the efficacy of endovascular thrombolysis? A potential role for activated protein C. Neuropharmacology 2017; 134:293-301. [PMID: 28923278 DOI: 10.1016/j.neuropharm.2017.09.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 09/13/2017] [Indexed: 12/11/2022]
Abstract
In the management of acute ischemic stroke, vessel recanalization correlates with functional status, mortality, cost, and other outcome measures. Thrombolysis with intravenous tissue plasminogen activator has many limitations that restrict its applicability, but recent advances in the development of mechanical thrombectomy devices as well as improved systems of stroke care have resulted in greater likelihood of vessel revascularization. Nonetheless, there remains substantial discrepancy between rates of recanalization and rates of favorable outcome. The poor neurological recovery among some stroke patients despite successful recanalization confirms the need for adjuvant pharmacological therapy for neuroprotection and/or neurorestoration. Prior clinical trials of such drugs may have failed due to the inability of the agent to access the ischemic tissue beyond the occluded artery. A protocol that couples revascularization with concurrent delivery of a neuroprotectant drug offers the potential to enhance the benefit of thrombolysis. Analogs of activated protein C (APC) exert pleiotropic anti-inflammatory, anti-apoptotic, antithrombotic, cytoprotective, and neuroregenerative effects in ischemic stroke and thus appear to be promising candidates for this novel approach. A multicenter, prospective, double-blinded, dose-escalation Phase 2 randomized clinical trial has enrolled 110 patients to assess the safety, pharmacokinetics, and efficacy of human recombinant 3K3A-APC following endovascular thrombolysis. This article is part of the Special Issue entitled 'Cerebral Ischemia'.
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Sallustio F, Koch G, Motta C, Diomedi M, Alemseged F, D'Agostino VC, Napolitano S, Samà D, Davoli A, Konda D, Morosetti D, Pampana E, Floris R, Gandini R. Efficacy and Safety of Mechanical Thrombectomy in Older Adults with Acute Ischemic Stoke. J Am Geriatr Soc 2017; 65:1816-1820. [PMID: 28422279 DOI: 10.1111/jgs.14909] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To evaluate the safety and efficacy of endovascular therapy in elderly adults treated for acute ischemic stroke. DESIGN Retrospective cohort study. SETTING Comprehensive Stroke Center, University of Tor Vergata, Rome, Italy. PARTICIPANTS Elderly adults treated for acute ischemic stroke (N = 219). MEASUREMENTS Participants were divided into two groups based on their age (n = 62, ≥80; n = 157, <80). Baseline and procedural characteristics, safety outcomes such as intracranial hemorrhage (ICH) and mortality and efficacy outcomes such as successful reperfusion and 3-month good clinical outcome of the two groups were compared. Mutivariable analysis was performed to identify predictors of clinical outcome. RESULTS Intravenous thrombolysis was more frequent (67.7% vs 52.8%, P = .04), and onset to reperfusion time was shorter (318.7 ± 128.7 vs 282 ± 53.5, P = .02) in participants aged 80 and older, but no between-group differences were found in terms of successful reperfusion (69% vs 63%, P = .4), good clinical outcome (30.6% vs 34.3%, P = .6), any (37% vs 37.5%, P > .99) or symptomatic (11% vs 14%, P = .6) ICH, or mortality (40.3% vs 29.2%, P = .14). Multivariable analysis revealed that, in the older group, onset National Institute of Health Stroke Scale (NIHSS) score (odds ratio (OR) = 0.65, 95% confidence interval (CI) = 0.44-0.96, P = .03) and 24-hour clinical improvement (OR = 141.13, 95% CI = 2.96-6,720.7, P = .01) were independent predictors of 3-month functional independence. CONCLUSION These findings suggest that endovascular treatment for stroke in selected elderly adults could be safe and effective. Major determinants of outcome in this subgroup of elderly patients are presentation NIHSS score and 24-hour clinical improvement.
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Affiliation(s)
- Fabrizio Sallustio
- Comprehensive Stroke Center, Department of Neuroscience, University of Tor Vergata, Rome, Italy.,Neurorehabilitation Unit, Santa Lucia Foundation, Rome, Italy
| | - Giacomo Koch
- Comprehensive Stroke Center, Department of Neuroscience, University of Tor Vergata, Rome, Italy.,Neurorehabilitation Unit, Santa Lucia Foundation, Rome, Italy
| | - Caterina Motta
- Comprehensive Stroke Center, Department of Neuroscience, University of Tor Vergata, Rome, Italy.,Neurorehabilitation Unit, Santa Lucia Foundation, Rome, Italy
| | - Marina Diomedi
- Comprehensive Stroke Center, Department of Neuroscience, University of Tor Vergata, Rome, Italy
| | - Fana Alemseged
- Comprehensive Stroke Center, Department of Neuroscience, University of Tor Vergata, Rome, Italy.,Department of Medicine and Neurology, Royal Melbourne Hospital, University of Melbourne, Parkville, Australia
| | - Vittoria C D'Agostino
- Comprehensive Stroke Center, Department of Neuroscience, University of Tor Vergata, Rome, Italy
| | - Simone Napolitano
- Comprehensive Stroke Center, Department of Neuroscience, University of Tor Vergata, Rome, Italy
| | - Domenico Samà
- Comprehensive Stroke Center, Department of Neuroscience, University of Tor Vergata, Rome, Italy
| | - Alessandro Davoli
- Comprehensive Stroke Center, Department of Neuroscience, University of Tor Vergata, Rome, Italy
| | - Daniel Konda
- Interventional Radiology and Neuroradiology, University of Tor Vergata, Rome, Italy
| | - Daniele Morosetti
- Interventional Radiology and Neuroradiology, University of Tor Vergata, Rome, Italy
| | - Enrico Pampana
- Interventional Radiology and Neuroradiology, University of Tor Vergata, Rome, Italy
| | - Roberto Floris
- Interventional Radiology and Neuroradiology, University of Tor Vergata, Rome, Italy
| | - Roberto Gandini
- Interventional Radiology and Neuroradiology, University of Tor Vergata, Rome, Italy
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Broeg-Morvay A, Mordasini P, Slezak A, Liesirova K, Meisterernst J, Schroth G, Arnold M, Jung S, Mattle HP, Gralla J, Fischer U. Does Antiplatelet Therapy during Bridging Thrombolysis Increase Rates of Intracerebral Hemorrhage in Stroke Patients? PLoS One 2017; 12:e0170045. [PMID: 28095449 PMCID: PMC5240999 DOI: 10.1371/journal.pone.0170045] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 12/28/2016] [Indexed: 11/18/2022] Open
Abstract
Background Symptomatic intracerebral hemorrhage (sICH) after bridging thrombolysis for acute ischemic stroke is a devastating complication. We aimed to assess whether the additional administration of aspirin during endovascular intervention increases bleeding rates. Methods We retrospectively compared bleeding complications and outcome in stroke patients who received bridging thrombolysis with (tPA+ASA) and without (tPA-ASA) aspirin during endovascular intervention between November 2008 and March 2014. Furthermore, we analyzed bleeding complications and outcome in antiplatelet naïve patients with those with prior or acute antiplatelet therapy. Results Baseline characteristics, previous medication, and dosage of rtPA did not differ between 50 tPA+ASA (39 aspirin naïve, 11 preloaded) and 181 tPA-ASA patients (p>0.05). tPA+ASA patients had more often internal carotid artery (ICA) occlusion (p<0.001), large artery disease (p<0.001) and received more often acute stenting of the ICA (p<0.001). 10/180 (5.6%) tPA-ASA patients and 3/49 (6.1%) tPA+ASA patients suffered a sICH (p = 1.0). Rates of asymptomatic intracerebral hemorrhage, systemic bleeding complications and outcome did not differ between both groups (p>0.1). There were no differences in bleeding complications and mortality among 112 bridging patients with antiplatelet therapy (62 preloaded, 39 acute administration, 11 both) and 117 antiplatelet naïve patients. In a logistic regression analysis, aspirin administration during endovascular procedure was not a predictor of sICH. Conclusion Antiplatelet therapy before or during bridging thrombolysis in patients with acute ischemic stroke did not increase the risk of bleeding complications and had no impact on outcome. This finding has to be confirmed in larger studies.
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Affiliation(s)
- Anne Broeg-Morvay
- Department of Neurology, Inselspital, University Hospital Bern and University of Bern, Bern, Switzerland
| | - Pasquale Mordasini
- Department of Diagnostic and Interventional Neuroradiology, Inselspital, University Hospital Bern and University of Bern, Bern, Switzerland
| | - Agnieszka Slezak
- Department of Neurology, Inselspital, University Hospital Bern and University of Bern, Bern, Switzerland
| | - Kai Liesirova
- Department of Neurology, Inselspital, University Hospital Bern and University of Bern, Bern, Switzerland
| | - Julia Meisterernst
- Department of Neurology, Inselspital, University Hospital Bern and University of Bern, Bern, Switzerland
| | - Gerhard Schroth
- Department of Diagnostic and Interventional Neuroradiology, Inselspital, University Hospital Bern and University of Bern, Bern, Switzerland
| | - Marcel Arnold
- Department of Neurology, Inselspital, University Hospital Bern and University of Bern, Bern, Switzerland
| | - Simon Jung
- Department of Neurology, Inselspital, University Hospital Bern and University of Bern, Bern, Switzerland
- Department of Diagnostic and Interventional Neuroradiology, Inselspital, University Hospital Bern and University of Bern, Bern, Switzerland
| | - Heinrich P. Mattle
- Department of Neurology, Inselspital, University Hospital Bern and University of Bern, Bern, Switzerland
| | - Jan Gralla
- Department of Diagnostic and Interventional Neuroradiology, Inselspital, University Hospital Bern and University of Bern, Bern, Switzerland
| | - Urs Fischer
- Department of Neurology, Inselspital, University Hospital Bern and University of Bern, Bern, Switzerland
- * E-mail:
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Hentschel KA, Daou B, Chalouhi N, Starke RM, Clark S, Gandhe A, Jabbour P, Rosenwasser R, Tjoumakaris S. Comparison of non-stent retriever and stent retriever mechanical thrombectomy devices for the endovascular treatment of acute ischemic stroke. J Neurosurg 2016; 126:1123-1130. [PMID: 27128585 DOI: 10.3171/2016.2.jns152086] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Mechanical thrombectomy is standard of care for the treatment of acute ischemic stroke. However, limited data are available from assessment of outcomes of FDA-approved devices. The objective of this study is to compare clinical outcomes, efficacy, and safety of non-stent retriever and stent retriever thrombectomy devices. METHODS Between January 2008 and June 2014, 166 patients treated at Jefferson Hospital for Neuroscience for acute ischemic stroke with mechanical thrombectomy using Merci, Penumbra, Solitaire, or Trevo devices were retrospectively reviewed. Primary outcomes included 90-day modified Rankin Scale (mRS) score, recanalization rate (thrombolysis in cerebral infarction [TICI score]), and incidence of symptomatic intracranial hemorrhages (ICHs). Univariate analysis and multivariate logistic regression determined predictors of mRS Score 3-6, mortality, and TICI Score 3. RESULTS A total of 99 patients were treated with non-stent retriever devices (Merci and Penumbra) and 67 with stent retrievers (Solitaire and Trevo). Stent retrievers yielded lower 90-day NIH Stroke Scale scores and higher rates of 90-day mRS scores ≤ 2 (22.54% [non-stent retriever] vs 61.67% [stent retriever]; p < 0.001), TICI Score 2b-3 recanalization rates (79.80% [non-stent retriever] vs 97.01% [stent retriever]; p < 0.001), percentage of parenchyma salvaged, and discharge rates to home/rehabilitation. The overall incidence of ICH was also significantly lower (40.40% [non-stent retriever] vs 13.43% [stent retriever]; p = 0.002), with a trend toward lower 90-day mortality. Use of non-stent retriever devices was an independent predictor of mRS Scores 3-6 (p = 0.002), while use of stent retrievers was an independent predictor of TICI Score 3 (p < 0.001). CONCLUSIONS Stent retriever mechanical thrombectomy devices achieve higher recanalization rates than non-stent retriever devices in acute ischemic stroke with improved clinical and radiographic outcomes and safety.
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Affiliation(s)
| | | | | | - Robert M Starke
- Department of Neurosurgery, University of Virginia Health System, Charlottesville, Virginia
| | | | - Ashish Gandhe
- Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania; and
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Saposnik G, Lebovic G, Demchuk A, Levy EI, Ovbiagele B, Goyal M, Johnston SC. Added Benefit of Stent Retriever Technology for Acute Ischemic Stroke: A Pooled Analysis of the NINDS tPA, SWIFT, and STAR Trials. Neurosurgery 2016; 77:454-61. [PMID: 26280825 DOI: 10.1227/neu.0000000000000826] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Endovascular treatment is increasingly being used in acute stroke care. However, although stent retrievers show improved flow restoration rates, their clinical benefits have been uncertain. OBJECTIVE To assess the incremental effect of using stent retrievers compared with intravenous tissue plasminogen activator (IV tPA; alteplase) alone or placebo/control. METHODS We conducted a pooled analysis of 4 studies using stent retrievers (Solitaire), IV tPA, or placebo/control. We applied the ischemic stroke risk score (www.sorcan.ca/iscore) to each participant to adjust for differences in baseline characteristics. We used a shift analysis to account for the potential benefits across the entire modified Rankin scale score at 90 days, adjusting for time-to-treatment, baseline Alberta Stroke Program Early CT score, and ischemic stroke risk score. RESULTS Of the 915 participants in this analysis, 312 (34.1%) patients received placebo, 312 (34.1%) received tPA alone, 131 (14.4%) received stent retrievers alone, and 160 (17.5) received combined therapy (IV tPA plus stent retrievers). The shift analysis revealed that more patients remained independent at 90 days if receiving stent retrievers alone (number needed to treat 3.5) or combined with tPA (number needed to treat 3.1) compared with tPA alone. After adjustment, participants receiving stent retrievers alone (odds ratio, 2.95; 95% confidence interval, 1.48-5.89) or combined with tPA (odds ratio, 4.45; 95% confidence interval, 2.40-8.27) were more likely to be independent at 90 days compared with tPA alone. CONCLUSION Patients with acute ischemic stroke who received IV tPA or revascularization therapies had a higher likelihood of achieving independence at 3 months. Stent retriever technology combined with tPA was associated with the greatest benefit compared with placebo, tPA alone, or endovascular therapy alone.
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Affiliation(s)
- Gustavo Saposnik
- *Stroke Outcomes Research Center, Division of Neurology, Department of Medicine, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada; ‡Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; §Applied Health Research Center, Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada; ¶Calgary Stroke Program, Department of Clinical Neurosciences and Radiology, University of Calgary, Alberta, Canada; ‖Professor of Neurosurgery and Radiology, University at Buffalo, State University of New York, Buffalo, New York; #Department of Neuroscience, Medical University of South Carolina, Charleston, South Carolina; **Dell Medical School, University of Texas, Austin, Texas
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44
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Nikoubashman O, Jungbluth M, Schürmann K, Müller M, Falkenburger B, Tauber SC, Wiesmann M, Schulz JB, Reich A. Neurothrombectomy in acute ischaemic stroke: a prospective single-centre study and comparison with randomized controlled trials. Eur J Neurol 2016; 23:807-16. [DOI: 10.1111/ene.12944] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 11/13/2015] [Indexed: 11/28/2022]
Affiliation(s)
- O. Nikoubashman
- Department of Neuroradiology; University Hospital Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen; Aachen Germany
| | - M. Jungbluth
- Department of Neurology; University Hospital Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen; Aachen Germany
| | - K. Schürmann
- Department of Neurology; University Hospital Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen; Aachen Germany
| | - M. Müller
- Department of Neuroradiology; University Hospital Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen; Aachen Germany
| | - B. Falkenburger
- Department of Neurology; University Hospital Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen; Aachen Germany
| | - S. C. Tauber
- Department of Neurology; University Hospital Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen; Aachen Germany
| | - M. Wiesmann
- Department of Neuroradiology; University Hospital Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen; Aachen Germany
| | - J. B. Schulz
- Department of Neurology; University Hospital Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen; Aachen Germany
- JARA - Translational Brain Medicine; Jülich and Aachen Germany
| | - A. Reich
- Department of Neurology; University Hospital Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen; Aachen Germany
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Intravenous Thrombolysis Facilitates Successful Recanalization with Stent-Retriever Mechanical Thrombectomy in Middle Cerebral Artery Occlusions. J Stroke Cerebrovasc Dis 2016; 25:954-9. [PMID: 26851970 DOI: 10.1016/j.jstrokecerebrovasdis.2016.01.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 10/28/2015] [Accepted: 01/02/2016] [Indexed: 12/14/2022] Open
Abstract
AIM Several factors influence the outcome after acute ischemic stroke secondary to proximal occlusions of cerebral vessels. Among others, noneligibility for intravenous thrombolysis (IVT) and incomplete revascularization have been identified as predictors of unfavorable outcome. The aim of this study was to investigate whether concomitant IVT influences the revascularization efficacy in mechanical thrombectomy (MT). METHODS This study conducted a retrospective analysis of all consecutive patients presenting with an anterior circulation stroke due to large-artery occlusion with imaging evidence who were treated with MT between July 2012 and December 2013 at 2 high-volume stroke centers. Imaging data were regraded and re-evaluated according to the modified Treatment in Cerebral Ischemia scale and its respective vessel occlusion site definitions. Clinical end points included National Institutes of Health Stroke Scale (NIHSS) and modified Rankin Scale; imaging and procedural measures were technical end points. RESULTS We identified 93 patients who presented with an occlusion of the middle cerebral artery (MCA): of these patients, 66 (71%) received IVT. We did not find statistically significant differences in the baseline NIHSS score, time from symptom onset to groin puncture, and age when comparing the IVT group with the non-IVT group. The rate of successful recanalizations (modified Treatment in Cerebral Ischemia score ≥ 2b) was significantly higher in patients with MCA occlusion and concomitant IVT (P = .01). Stepwise logistic regression identified IVT and thrombus length as predictive factors for successful mechanical recanalization (P = .004, P = .002). CONCLUSION IVT and thrombus length are predictive factors for a successful recanalization in MT for acute ischemic stroke with underlying MCA occlusion.
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Wahlgren N, Moreira T, Michel P, Steiner T, Jansen O, Cognard C, Mattle HP, van Zwam W, Holmin S, Tatlisumak T, Petersson J, Caso V, Hacke W, Mazighi M, Arnold M, Fischer U, Szikora I, Pierot L, Fiehler J, Gralla J, Fazekas F, Lees KR. Mechanical thrombectomy in acute ischemic stroke: Consensus statement by ESO-Karolinska Stroke Update 2014/2015, supported by ESO, ESMINT, ESNR and EAN. Int J Stroke 2015; 11:134-47. [DOI: 10.1177/1747493015609778] [Citation(s) in RCA: 271] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The original version of this consensus statement on mechanical thrombectomy was approved at the European Stroke Organisation (ESO)-Karolinska Stroke Update conference in Stockholm, 16–18 November 2014. The statement has later, during 2015, been updated with new clinical trials data in accordance with a decision made at the conference. Revisions have been made at a face-to-face meeting during the ESO Winter School in Berne in February, through email exchanges and the final version has then been approved by each society. The recommendations are identical to the original version with evidence level upgraded by 20 February 2015 and confirmed by 15 May 2015. The purpose of the ESO-Karolinska Stroke Update meetings is to provide updates on recent stroke therapy research and to discuss how the results may be implemented into clinical routine. Selected topics are discussed at consensus sessions, for which a consensus statement is prepared and discussed by the participants at the meeting. The statements are advisory to the ESO guidelines committee. This consensus statement includes recommendations on mechanical thrombectomy after acute stroke. The statement is supported by ESO, European Society of Minimally Invasive Neurological Therapy (ESMINT), European Society of Neuroradiology (ESNR), and European Academy of Neurology (EAN).
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Affiliation(s)
- Nils Wahlgren
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Department of Neurology, Karolinska University Hospital, Stockholm, Sweden
| | - Tiago Moreira
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Department of Neurology, Karolinska University Hospital, Stockholm, Sweden
| | - Patrik Michel
- Département des Neurosciences Cliniques, Lausanne, Switzerland
| | - Thorsten Steiner
- Department of Neurology, University of Heidelberg, Heidelberg, Germany
- Department of Neurology, Klinikum Frankfurt Höchst, Frankfurt, Germany
| | - Olav Jansen
- Department of Radiology and Neuroradiology, UKSH, Kiel, Germany
| | - Christophe Cognard
- Department of Diagnostic and Therapeutic Neuroradiology, University Hospital of Toulouse, Toulouse, France
| | - Heinrich P Mattle
- Department of Neurology, Inselspital, Bern University Hospital, Bern, Switzerland
- University of Bern, Bern, Switzerland
| | - Wim van Zwam
- Department of Radiology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Staffan Holmin
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
- Department of Neuroradiology, Karolinska University Hospital, Stockholm, Sweden
| | - Turgut Tatlisumak
- Institute of Neuroscience and Physiology, Sahlgrenska Academy of Gothenburg, Gothenburg, Sweden
- Department of Neurology, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Neurology, Helsinki University Hospital, Helsinki, Finland
| | - Jesper Petersson
- Department of Neurology, Skåne University Hospital, Malmö, Sweden
- Department of Neurology, Lund University, Lund, Sweden
| | - Valeria Caso
- Stroke Unit, Santa Maria Hospital, University of Perugia, Perugia, Italy
| | - Werner Hacke
- Department of Neurology, University of Heidelberg, Heidelberg, Germany
| | - Mikael Mazighi
- Pole Neurosensoriel Tête et Cou, Hôpital Lariboisière, Paris, France
| | - Marcel Arnold
- Department of Neurology, Inselspital, Bern University Hospital, Bern, Switzerland
- University of Bern, Bern, Switzerland
| | - Urs Fischer
- Department of Neurology, Inselspital, Bern University Hospital, Bern, Switzerland
- University of Bern, Bern, Switzerland
| | - Istvan Szikora
- Department of Neurointerventions, National Institute of Clinical Neurosciences, Budapest, Hungary
| | - Laurent Pierot
- Service de Radiologie, Hôpital Maison-Blanche, Reims, France
| | - Jens Fiehler
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jan Gralla
- Department of Diagnostic and Interventional Neuroradiology, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Franz Fazekas
- Department of Neurology, Medical University Graz, Graz, Austria
| | - Kennedy R Lees
- Department of Cerebrovascular Medicine, University of Glasgow, Glasgow, Scotland, UK
- Acute Stroke Unit, Western Infirmary, Glasgow, Scotland, UK
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Slater LA, Coutinho JM, Gralla J, Nogueira RG, Bonafé A, Dávalos A, Jahan R, Levy E, Baxter BJ, Saver JL, Pereira VM. TICI and Age: What's the Score? AJNR Am J Neuroradiol 2015; 37:838-43. [PMID: 26611995 DOI: 10.3174/ajnr.a4618] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 09/07/2015] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND PURPOSE Previous studies have suggested that advanced age predicts worse outcome following mechanical thrombectomy. We assessed outcomes from 2 recent large prospective studies to determine the association among TICI, age, and outcome. MATERIALS AND METHODS Data from the Solitaire FR Thrombectomy for Acute Revascularization (STAR) trial, an international multicenter prospective single-arm thrombectomy study and the Solitaire arm of the Solitaire FR With the Intention For Thrombectomy (SWIFT) trial were pooled. TICI was determined by core laboratory review. Good outcome was defined as an mRS score of 0-2 at 90 days. We analyzed the association among clinical outcome, successful-versus-unsuccessful reperfusion (TICI 2b-3 versus TICI 0-2a), and age (dichotomized across the median). RESULTS Two hundred sixty-nine of 291 patients treated with Solitaire in the STAR and SWIFT data bases for whom TICI and 90-day outcome data were available were included. The median age was 70 years (interquartile range, 60-76 years) with an age range of 25-88 years. The mean age of patients 70 years of age or younger was 59 years, and it was 77 years for patients older than 70 years. There was no significant difference between baseline NIHSS scores or procedure time metrics. Hemorrhage and device-related complications were more common in the younger age group but did not reach statistical significance. In absolute terms, the rate of good outcome was higher in the younger population (64% versus 44%, P < .001). However, the magnitude of benefit from successful reperfusion was higher in the 70 years of age and older group (OR, 4.82; 95% CI, 1.32-17.63 versus OR 7.32; 95% CI, 1.73-30.99). CONCLUSIONS Successful reperfusion is the strongest predictor of good outcome following mechanical thrombectomy, and the magnitude of benefit is highest in the patient population older than 70 years of age.
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Affiliation(s)
- L A Slater
- From the Division of Neuroradiology (L.A.S., J.M.C., V.M.P.), Joint Department of Medical Imaging, Department of Medical Imaging
| | - J M Coutinho
- From the Division of Neuroradiology (L.A.S., J.M.C., V.M.P.), Joint Department of Medical Imaging, Department of Medical Imaging
| | - J Gralla
- Service of Neuroradiology (J.G.), Inselspital, University of Bern, Bern, Switzerland
| | - R G Nogueira
- Marcus Stroke and Neuroscience Center (R.G.N.), Department of Neurology, Grady Memorial Hospital, Emory University School of Medicine, Atlanta, Georgia
| | - A Bonafé
- Department of Neuroradiology (A.B.), Hôpital Gui-de-Chauliac, Montpellier, France
| | - A Dávalos
- Department of Neurosciences (A.D.), Hospital Universitario Germans Trias i Pujol, Barcelona, Spain
| | - R Jahan
- Division of Interventional Neuroradiology (R.J.)
| | - E Levy
- Toshiba Stroke and Vascular Research Center (E.L.), State University of New York at Buffalo, Buffalo, New York
| | - B J Baxter
- Department of Radiology (B.J.B.), Erlanger Hospital at the University of Tennessee, Chattanooga, Tennessee
| | - J L Saver
- Department of Neurology and Comprehensive Stroke Center (J.L.S.), David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
| | - V M Pereira
- From the Division of Neuroradiology (L.A.S., J.M.C., V.M.P.), Joint Department of Medical Imaging, Department of Medical Imaging Division of Neurosurgery (V.M.P.), Department of Surgery, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
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Carneiro AAS, Rodrigues JTL, Pereira JPR, Alves JV, Xavier JAM. Mechanical thrombectomy in patients with acute basilar occlusion using stent retrievers. Interv Neuroradiol 2015; 21:710-4. [PMID: 26490830 DOI: 10.1177/1591019915609781] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 09/07/2015] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Early arterial recanalisation with stent retrievers (SR) has been recently demonstrated to improve clinical outcome of patients with large-vessel occlusion of the anterior circulation. However, the benefit of SR thrombectomy in the setting of acute basilar artery occlusion (BAO) has not been proven yet. This study evaluated a series of consecutive patients with BAO treated with SR, focusing on the efficacy, safety and clinical results. METHODS We analysed 24 consecutive patients with acute BAO who were treated with SR mechanical thrombectomy. Good clinical outcome at three months was defined as mRS ≤ 2. Data from patients with good outcome were compared to that from patients with poor outcome. RESULTS Sufficient recanalisation (TICI 2 b or 3) was achieved in 63% (15/24) of patients. At three months, 33% (8/24) of patients had died; good clinical outcome was obtained in 21% (5/24). Age (46 vs. 60 years old, p = 0.05) and time from symptoms onset to recanalisation (370 vs. 521 minutes, p = 0.048) was significantly lower in patients with good outcome as compared to patients with poor outcome. There were three cases (12.5%) of periprocedural complications, all of them related to arterial wall dissection/perforation. CONCLUSIONS SR thrombectomy might be an efficient and safe treatment for patients with acute BAO occlusion and might help improve outcome.
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Palaniswami M, Yan B. Mechanical Thrombectomy Is Now the Gold Standard for Acute Ischemic Stroke: Implications for Routine Clinical Practice. INTERVENTIONAL NEUROLOGY 2015; 4:18-29. [PMID: 26600793 DOI: 10.1159/000438774] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND This review aims to summarize the findings of the recently published randomized controlled studies which provide overwhelming evidence in support of mechanical thrombectomy for acute ischemic stroke with large artery occlusion. The five studies, Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands (MR CLEAN), Endovascular Revascularization with Solitaire Device versus Best Medical Therapy in Anterior Circulation Stroke within 8 h (REVASCAT), Endovascular Treatment for Small Core and Proximal Occlusion Ischemic Stroke (ESCAPE), Solitaire™ FR as Primary Treatment for Acute Ischemic Stroke (SWIFT PRIME) and Extending the Time for Thrombolysis in Emergency Neurological Deficits with Intra-Arterial Therapy (EXTEND IA) have demonstrated the critical role of selecting patients by advanced neuroimaging, the superior recanalization capacity of stent retrievers and the effects of minimization of work processes delay. SUMMARY This review outlines lessons gained from the 5 positive studies which assessed mechanical thrombectomy as part of endovascular therapy for patients with proximal artery occlusion in the internal carotid and middle cerebral arteries. It discusses the role of age and stroke severity on treatment while also comparing the unique trial designs and selection criteria used amongst the 5 studies. In addition to examining the importance of unique imaging parameters such as collateral circulation, mismatch ratio and ischemic core volume, the review outlines differences in workflow parameters within the context of outcome. Finally the benefit of neuroimaging to broaden treatment eligibility and the issues associated with general anesthesia will be discussed in this review. KEY MESSAGES Questions remain over the applicability of mechanical thrombectomy to stroke subgroups including wake-up strokes and basilar artery thrombosis. The role of imaging is integral to this process and can lead to broadening eligibility criteria in the future. Workflow practices have been streamlined in the 5 positive randomized controlled studies, but guidelines will need to be revised accordingly if similar patient outcomes are to be replicated in a wider population.
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Affiliation(s)
- Murugan Palaniswami
- Melbourne Brain Centre, Royal Melbourne Hospital, University of Melbourne, Parkville, Vic., Australia
| | - Bernard Yan
- Melbourne Brain Centre, Royal Melbourne Hospital, University of Melbourne, Parkville, Vic., Australia
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Amar AP, Griffin JH, Zlokovic BV. Combined neurothrombectomy or thrombolysis with adjunctive delivery of 3K3A-activated protein C in acute ischemic stroke. Front Cell Neurosci 2015; 9:344. [PMID: 26388732 PMCID: PMC4556986 DOI: 10.3389/fncel.2015.00344] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 08/18/2015] [Indexed: 01/19/2023] Open
Abstract
In the treatment of acute ischemic stroke (AIS), vessel recanalization correlates with improved functional status and reduced mortality. Mechanical neurothrombectomy achieves a higher likelihood of revascularization than intravenous thrombolysis (IVT), but there remains significant discrepancy between rates of recanalization and rates of favorable outcome. The poor neurological recovery among some stroke patients despite successful recanalization confirms the need for adjuvant therapy, such as pharmacological neuroprotection. Prior clinical trials of neuroprotectant drugs failed perhaps due to inability of the agent to reach the ischemic tissue beyond the occluded artery. A protocol that couples mechanical neurothrombectomy with concurrent delivery of a neuroprotectant overcomes this pitfall. Activated protein C (APC) exerts pleiotropic anti-inflammatory, anti-apoptotic, antithrombotic, cytoprotective, and neuroregenerative effects in stroke and appears a compelling candidate for this novel approach.
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Affiliation(s)
- Arun Paul Amar
- Department of Neurosurgery, Keck School of Medicine of the University of Southern California, University of Southern California Los Angeles, CA, USA
| | - John H Griffin
- Department of Molecular and Experimental Medicine, Scripps Research Institute La Jolla, CA, USA ; Department of Medicine, Division of Hematology/Oncology, University of California, San Diego San Diego, CA, USA
| | - Berislav V Zlokovic
- Zilkha Neurogenetic Institute, Keck School of Medicine of the University of Southern California, University of Southern California Los Angeles, CA, USA
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