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Alexandre AM, Monforte M, Brunetti V, Scarcia L, Cirillo L, Zini A, Scala I, Nardelli V, Arbia F, Arbia G, Frisullo G, Kalsoum E, Camilli A, De Leoni D, Colò F, Abruzzese S, Piano M, Rollo C, Macera A, Ruggiero M, Lafe E, Gabrieli JD, Cester G, Limbucci N, Arba F, Ferretti S, Da Ros V, Bellini L, Salsano G, Mavilio N, Russo R, Bergui M, Caragliano AA, Vinci SL, Romano DG, Frauenfelder G, Semeraro V, Ganimede MP, Lozupone E, Romi A, Cavallini A, Milonia L, Muto M, Candelaresi P, Calabresi P, Pedicelli A, Broccolini A. Baseline clinical and neuroradiological predictors of outcome in patients with large ischemic core undergoing mechanical thrombectomy: A retrospective multicenter study. Int J Stroke 2024; 19:779-788. [PMID: 38546177 PMCID: PMC11298113 DOI: 10.1177/17474930241245828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 03/18/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND Recent randomized trials have shown the benefit of mechanical thrombectomy (MT) also in patients with an established large ischemic core. AIMS The purpose of this study was to define baseline predictors of clinical outcome in patients with large vessel occlusion (LVO) in the anterior circulation and an Alberta Stroke Program Early CT score (ASPECTS) ⩽ 5, undergoing MT. MATERIAL AND METHODS The databases of 16 comprehensive stroke centers were retrospectively screened for patients with LVO and ASPECTS ⩽5 that received MT. Baseline clinical and neuroradiological features, including the differential contribution of all ASPECTS regions to the composite score, were collected. Primary clinical outcome measure was a 90-day modified Rankin Scale (mRS) score of 0-2. Statistical analysis used a logistic regression model and random forest algorithm. RESULTS A total of 408 patients were available for analysis. In multivariate model, among baseline features, lower age (odd ratio (OR) = 0.962, 95% confidence interval (CI) = 0.943-0.982) and lower National Institute of Health Stroke Scale (NIHSS) score (OR = 0.911, 95% CI = 0.862-0.963) were associated with the mRS score 0-2. Involvement of the M2 (OR = 0.398, 95% CI = 0.206-0.770) or M4 (OR = 0.496, 95% CI = 0.260-0.945) ASPECTS regions was associated with an unfavorable outcome. Random forest analysis confirmed that age and baseline NIHSS score are the most important variables influencing clinical outcome, whereas involvement of cortical regions M5, M4, M2, and M1 can have a negative impact. CONCLUSION Our retrospective analysis shows that, along with age and baseline clinical impairment, presence of early ischemic changes involving cortical areas has a role in clinical outcome in patients with large ischemic core undergoing MT. DATA ACCESS STATEMENT The data that support the findings of this study are available upon reasonable request.
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Affiliation(s)
- Andrea M Alexandre
- Interventional Neuroradiology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Mauro Monforte
- Neurology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Valerio Brunetti
- Neurology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Luca Scarcia
- Neuroradiology Unit, Henri Mondor Hospital, Creteil, France
| | - Luigi Cirillo
- Department of Neurology and Stroke Center, IRCCS Istituto delle Scienze Neurologiche di Bologna, Maggiore Hospital, Bologna, Italy
| | - Andrea Zini
- Department of Neurology and Stroke Center, IRCCS Istituto delle Scienze Neurologiche di Bologna, Maggiore Hospital, Bologna, Italy
| | - Irene Scala
- Catholic University School of Medicine, Rome, Italy
| | - Vincenzo Nardelli
- Department of Statistical Sciences, Catholic University, Rome, Italy
| | - Francesco Arbia
- Department of Neuroradiology, S. Andrea Hospital, Rome, Italy
| | - Giuseppe Arbia
- Department of Statistical Sciences, Catholic University, Rome, Italy
| | - Giovanni Frisullo
- Neurology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Erwah Kalsoum
- Neuroradiology Unit, Henri Mondor Hospital, Creteil, France
| | | | | | | | | | - Mariangela Piano
- Neuroradiology Unit, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Claudia Rollo
- Neuroradiology Unit, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Antonio Macera
- Neuroradiology Unit, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Maria Ruggiero
- Neuroradiology Unit, M. Bufalini Hospital, Cesena, Italy
| | - Elvis Lafe
- Neuroradiology Unit, M. Bufalini Hospital, Cesena, Italy
| | | | - Giacomo Cester
- Neuroradiology Unit, Padua University Hospital, Padua, Italy
| | - Nicola Limbucci
- Interventional Neurovascular Unit, A.O.U. Careggi, Florence, Italy
| | | | - Simone Ferretti
- NEUROFARBA Department, University of Florence, Florence, Italy
| | - Valerio Da Ros
- Department of Biomedicine and Prevention, “Tor Vergata” University Hospital, Rome, Italy
| | - Luigi Bellini
- Department of Biomedicine and Prevention, “Tor Vergata” University Hospital, Rome, Italy
| | | | - Nicola Mavilio
- Neuroradiology Unit, “San Martino” Hospital, Genoa, Italy
| | - Riccardo Russo
- Neuroradiology Unit, A.O. “Città della Salute e della Scienza,” Turin, Italy
| | - Mauro Bergui
- Neuroradiology Unit, A.O. “Città della Salute e della Scienza,” Turin, Italy
| | | | - Sergio L Vinci
- Neuroradiology Unit, “G. Martino” Hospital, Messina, Italy
| | - Daniele G Romano
- Neuroradiology Unit, AOU “S Giovanni di Dio e Ruggi di Aragona,” Salerno, Italy
| | - Giulia Frauenfelder
- Neuroradiology Unit, AOU “S Giovanni di Dio e Ruggi di Aragona,” Salerno, Italy
| | - Vittorio Semeraro
- Interventional Radiology Unit, “SS Annunziata” Hospital, Taranto, Italy
| | | | | | - Andrea Romi
- Neuroradiology Unit, IRCCS “San Matteo” Hospital, Pavia, Italy
| | - Anna Cavallini
- Cerebrovascular Diseases Unit, IRCCS Fondazione Mondino, Pavia, Italy
| | - Luca Milonia
- Interventional Neuroradiology Unit, “Umberto I” University Hospital, Rome, Italy
| | - Massimo Muto
- Neuroradiology Unit, A.O.R.N. “Antonio Cardarelli,” Naples, Italy
| | | | - Paolo Calabresi
- Neurology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Catholic University School of Medicine, Rome, Italy
| | - Alessandro Pedicelli
- Interventional Neuroradiology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Aldobrando Broccolini
- Neurology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Catholic University School of Medicine, Rome, Italy
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2
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Gu Y, Xu C, Zhang Z, Fang C, Yu J, He D, Xu G. Association between infarct location and haemorrhagic transformation of acute ischaemic stroke after intravenous thrombolysis. Clin Radiol 2024; 79:e401-e407. [PMID: 38135575 DOI: 10.1016/j.crad.2023.11.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 11/07/2023] [Indexed: 12/24/2023]
Abstract
AIM To evaluate the association between computed tomography (CT)-based imaging variables at the time of admission and haemorrhagic transformation (HT) after intravenous thrombolysis (IVT). MATERIALS AND METHODS One hundred and eight patients who were treated with IVT for acute ischaemic stroke (AIS) during January 2021 to July 2023 were analysed retrospectively. The infarct location was classified as cortical or subcortical in accordance with the Alberta Stroke Program Early CT Score (ASPECTS) system. Logistic regression and receiver operating characteristic curve analyses were performed to determine the relationship between ischaemic variables and HT. RESULTS Of the total, 18 (16.7%) patients had HT and seven (6.5%) had symptomatic intracerebral haemorrhage (sICH). Multivariate analysis revealed that cortical ASPECTS was independently associated with HT (odds ratio [OR], 0.197; 95% confidence interval [CI], 0.076-0.511; p=0.001) and cortical ASPECTS was independently associated with sICH (OR, 0.066; 95% CI, 0.009-0.510; p=0.009). To predict HT and sICH, cortical ASPECTS (HT area under the curve [AUC] = 0.881, sICH AUC = 0.971) provided a higher AUC compared with ASPECTS (HT AUC = 0.850, sICH AUC = 0.918). CONCLUSION Cortical ASPECTS seen on CT at the time of admission is associated with HT and sICH after IVT.
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Affiliation(s)
- Y Gu
- Department of Vascular Surgery and Intervention, The Affiliated Suzhou Hospital of Nanjing Medical University, 242 Guangji Road, Gusu District, Suzhou 215000, China
| | - C Xu
- Department of Vascular Surgery and Intervention, The Affiliated Suzhou Hospital of Nanjing Medical University, 242 Guangji Road, Gusu District, Suzhou 215000, China
| | - Z Zhang
- Department of Vascular Surgery and Intervention, The Affiliated Suzhou Hospital of Nanjing Medical University, 242 Guangji Road, Gusu District, Suzhou 215000, China
| | - C Fang
- Department of Vascular Surgery and Intervention, The Affiliated Suzhou Hospital of Nanjing Medical University, 242 Guangji Road, Gusu District, Suzhou 215000, China
| | - J Yu
- Department of Vascular Surgery and Intervention, The Affiliated Suzhou Hospital of Nanjing Medical University, 242 Guangji Road, Gusu District, Suzhou 215000, China
| | - D He
- Department of Neurology, The Affiliated Suzhou Hospital of Nanjing Medical University, 242 Guangji Road, Gusu District, Suzhou 215000, China
| | - G Xu
- Department of Vascular Surgery and Intervention, The Affiliated Suzhou Hospital of Nanjing Medical University, 242 Guangji Road, Gusu District, Suzhou 215000, China.
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Abdollahifard S, Taherifard E, Sadeghi A, Kiadeh PRH, Yousefi O, Mowla A. Endovascular therapy for acute stroke with a large infarct core: A systematic review and meta-analysis. J Stroke Cerebrovasc Dis 2023; 32:107427. [PMID: 37925765 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107427] [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: 08/09/2023] [Revised: 10/09/2023] [Accepted: 10/12/2023] [Indexed: 11/07/2023] Open
Abstract
OBJECTIVE In this meta-analysis, we aimed to investigate the efficacy and safety of endovascular treatment (EVT) for acute ischemic stroke (AIS) patients with large core infarct. METHODS Three online databases of Web of Science, PubMed and Scopus were systematically searched. Original studies which evaluated AIS participants with large core infarction who underwent EVT were included. R statistical software was used for statistical analyses. Effect sizes were presented with odds ratios (ORs) with their 95% confidence intervals (CIs). The effect sizes were pooled using random effects modeling. RESULTS Including 47 studies and 15,173 patients, this meta-analysis showed that compared with medical management (MM), EVT was significantly associated with decreased odds of mortality (0.67, 95% CI: 0.51-0.87) and increased odds of favorable outcomes, including a modified Rankin Scale of 0-3 (2.36, 95% CI: 1.69-3.291) and of 0-2 (3.54, 95% CI: 1.96-6.4) in 90 days and remarkable improvement in National Institutes of Health Stroke Scale within 48 h after the procedure (3.6, 95% CI:1.32-9.79). Besides, there was a higher chance of intracranial hemorrhage (ICH) development (1.88, 95% CI: 1.32-2.68) but not symptomatic ICH (1.34, 95% CI: 0.78-2.31) in those who underwent EVT. CONCLUSION Our study suggests that EVT might be an effective and relatively safe treatment option for the treatment of AIS patients with large vessel occlusion who have large core infarcts, although more large-scale trials are needed to consolidate the results and to make inclusion criteria and the patient selection process clearer.
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Affiliation(s)
| | - Erfan Taherifard
- School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; MPH Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Sadeghi
- School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Omid Yousefi
- Trauma Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ashkan Mowla
- Division of Stroke and Endovascular Neurosurgery, Department of Neurological Surgery, Keck School of Medicine, University of Southern California (USC), 1200 North State St., Suite 3300, Los Angeles, CA 90033, USA.
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4
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Imaging mismatch between Alberta Stroke Program Early CT Score and perfusion imaging may be a good variable for endovascular treatment. Eur Radiol 2023; 33:2629-2637. [PMID: 36502458 DOI: 10.1007/s00330-022-09273-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/18/2022] [Accepted: 10/25/2022] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Some patients with acute large vessel occlusion (LVO) presented imaging mismatch, low Alberta Stroke Program Early CT Score (ASPECTS) with small ischemic core, or high ASPECTS with large ischemic core. The study was designed to explore whether patients with imaging mismatch could benefit from endovascular treatment (EVT). METHODS We retrospectively reviewed patients with LVO treated with EVT in our center from March 2018 to Jul 2020. Patients were divided into three groups, imaging mismatch, small ischemic core, and large ischemic core groups. Pooled analyses based on stroke onset to treatment time were done. Multivariate regression analysis was performed to explore the factors for good outcomes. RESULTS Sixty-eight of 419 patients with LVO presented with imaging mismatch, and 35 of those (51%) achieved good outcomes after EVT at 90-day. No significant differences were noted in good outcomes and symptomatic intracranial hemorrhage (sICH) between patients with imaging mismatch and small ischemic core. Compared with large ischemic core, patients with imaging mismatch presented lower risk of sICH (95% confidence interval (CI) 0.04-0.75, p = 0.011) within 6 h and higher proportion of good outcomes (95% CI 0.37-0.82, p = 0.002) at 6 to 24 h. Baseline NIHSS (odds ratio (OR) = 0.91, 95% CI 0.88-0.95)), ASPECTS (OR = 1.14, 95% CI 1.01-1.29), ischemic core (OR = 0.99, 95% CI 0.98-1.00), and sICH (OR = 61.61, 95% CI 8.09-461.32) were associated with good outcomes. CONCLUSIONS Patients with imaging mismatch treated within 24 h could benefit from EVT and without increasing the risk of sICH. KEY POINTS • Patients with imaging mismatch between ASPECTS and ischemic core could achieve good outcomes after endovascular treatment. • Compared with large ischemic core, patients with imaging mismatch presented lower risk of symptomatic hemorrhage within 6 h and higher proportion of good outcomes within 6-24 h. • Baseline NIHSS score, ASPECTS, ischemic core, and symptomatic intracranial hemorrhage were associated with good outcomes.
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5
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Hashimoto H, Maruo T, Kimoto Y, Nakamura M, Fujinaga T, Nakamura H, Ushio Y. The association between diffusion-weighted imaging-Alberta Stroke Program Early Computed Tomography Score and the outcome following mechanical thrombectomy of anterior circulation occlusion. INTERDISCIPLINARY NEUROSURGERY 2023. [DOI: 10.1016/j.inat.2023.101758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
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6
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Gu Y, Ding Y, Hang Y, Cao Y, Jia Z, Zhao L, Liu Y, Liu S. Smaller baseline subcortical infarct volume predicts good outcomes in patients with a large core in early acute ischemic stroke after endovascular treatment. Front Neurosci 2023; 17:1063478. [PMID: 36814786 PMCID: PMC9939504 DOI: 10.3389/fnins.2023.1063478] [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: 10/07/2022] [Accepted: 01/16/2023] [Indexed: 02/09/2023] Open
Abstract
Background Patients with acute ischemic stroke (AIS) and a large core may benefit from endovascular treatment (EVT) in the early time window. Purpose To examine the prognostic factors for good outcomes in patients with a large core (70-130 ml) after EVT. Materials and methods We retrospectively reviewed 40 patients who met the criteria from October 2019 to April 2021. Based on the modified Rankin Score (mRS) at 90 days, the patients were divided into a good outcome group (mRS 0-2) and a poor outcome group (mRS 3-6). Baseline and procedural characteristics were collected for unilateral and multivariate regression analyses to explore the factors that influence good outcomes. In particular, the infarct territories were quantified as subcortical infarct volume (SIV) and cortical infarct volume (CIV). Results Of the 40 patients included, good outcomes were observed in 11 (27.5%) patients. Younger age, smaller SIV and larger mismatch volume were noted in the good outcome group than in the poor outcome group (all P < 0.05). Multivariate logistic regression analysis showed that only a smaller SIV [odds ratio (OR) 0.801; 95% CI 0.644-0.996; P = 0.046] was an independent predictor for good outcomes. The receiver operating characteristic curve indicated a moderate value of SIV for predicting good outcomes, with an area under the receiver operating characteristic curve of 0.735 (95% CI 0.572-0.862; P = 0.007). Conclusion Subcortical infarct volume was a potential useful predictor of good outcomes in patients with a large core after EVT in the early time window.
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Affiliation(s)
- Yiming Gu
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Department of Interventional Radiology, Suzhou Municipal Hospital Affiliated to Nanjing Medical University, Suzhou, China
| | - Yasuo Ding
- Department of Neurosurgery, Taizhou People's Hospital, Taizhou, China
| | - Yu Hang
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yuezhou Cao
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zhenyu Jia
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Linbo Zhao
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ying Liu
- Department of Neurology, Taizhou People's Hospital, Taizhou, China
| | - Sheng Liu
- Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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7
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Safouris A, Palaiodimou L, Szikora I, Kargiotis O, Magoufis G, Psychogios K, Paraskevas G, Spiliopoulos S, Brountzos E, Nardai S, Goyal N, De Sousa DA, Strbian D, Caso V, Alexandrov A, Tsivgoulis G. Endovascular treatment for anterior circulation large-vessel occlusion ischemic stroke with low ASPECTS: a systematic review and meta-analysis. Ther Adv Neurol Disord 2022; 15:17562864221139632. [PMID: 36467113 PMCID: PMC9716457 DOI: 10.1177/17562864221139632] [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: 07/09/2022] [Accepted: 10/31/2022] [Indexed: 08/30/2023] Open
Abstract
BACKGROUND Endovascular treatment (EVT) for acute ischemic stroke (AIS) patients presenting with Alberta Stroke Program Early CT Score (ASPECTS) 0-5 has not yet proven safe and effective by clinical trials. OBJECTIVES The aim of the study was to assess whether EVT in AIS patients presenting with low ASPECTS is beneficial. DESIGN Systematic review and meta-analysis of available studies in accordance with the PRISMA statement. DATA SOURCES AND METHODS We have searched MEDLINE, the Cochrane Central Register of Controlled Trials, and reference lists of articles published until 28 May 2022 with the aim to calculate (1) modified Rankin scale (mRS) score 0-3 at 3 months, (2) mRS score 0-2 at 3 months, (3) symptomatic intracranial hemorrhage (sICH), and (3) mortality at 3 months. RESULTS Overall, 24 eligible studies were included in the meta-analysis, comprising a total of 2539 AIS patients with ASPECTS 0-5 treated with EVT. The pooled proportion of EVT-treated patients achieving mRS 0-3 at 3 months was calculated at 38.4%. The pooled proportion of EVT-treated patients achieving mRS 0-2 at 3 months was 25.7%. Regarding safety outcomes, sICH occurred in 12.8% of patients. The 3-month pooled mortality was 30%. In pairwise meta-analysis, patients treated with EVT had a higher likelihood of achieving mRS 0-3 at 3 months compared with patients treated with best medical therapy (BMT, OR: 2.41). sICH occurred more frequently in EVT-treated patients compared with the BMT-treated patients (OR: 2.30). Mortality at 3 months was not different between the two treatment groups (OR: 0.71). CONCLUSION EVT may be beneficial for AIS patients with low baseline ASPECTS despite an increased risk for sICH. Further data from randomized-controlled clinical trials are needed to elucidate the role of EVT in this subgroup of AIS patients. REGISTRATION The protocol has been registered in the International Prospective Register of Ongoing Systematic Reviews PROSPERO; Registration Number: CRD42022334417.
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Affiliation(s)
- Apostolos Safouris
- Stroke Unit, Metropolitan Hospital, Piraeus,
Greece
- Second Department of Neurology, Attikon
University Hospital, Athens, Greece
- School of Medicine, National and Kapodistrian
University of Athens, Athens, Greece
- Aktios Rehabilitation Center, Athens,
Greece
- Department of Neurointerventions, National
Institute of Mental Health, Neurology and Neurosurgery, Section of
Neurointervention, Department of Neurosurgery, Semmelweis University,
Budapest, Hungary
| | - Lina Palaiodimou
- Second Department of Neurology, Attikon
University Hospital, Athens, Greece
- School of Medicine, National and Kapodistrian
University of Athens, Athens, Greece
| | - István Szikora
- Department of Neurointerventions, National
Institute of Mental Health, Neurology and Neurosurgery, Section of
Neurointervention, Department of Neurosurgery, Semmelweis University,
Budapest, Hungary
| | | | - George Magoufis
- Neuroradiology Department, Metropolitan
Hospital, Piraeus, Greece
| | | | - Georgios Paraskevas
- Second Department of Neurology, Attikon
University Hospital, Athens, Greece
- School of Medicine, National and Kapodistrian
University of Athens, Athens, Greece
| | - Stavros Spiliopoulos
- Interventional Radiology Department, Attikon
University Hospital, Athens, Greece
| | - Elias Brountzos
- Interventional Radiology Department, Attikon
University Hospital, Athens, Greece
| | - Sándor Nardai
- Department of Neurointerventions, National
Institute of Mental Health, Neurology and Neurosurgery, Section of
Neurointervention, Department of Neurosurgery, Semmelweis University,
Budapest, Hungary
| | - Nitin Goyal
- Department of Neurology, The University of
Tennessee Health Science Center, Memphis, TN, USA
- Department of Neurosurgery, The University of
Tennessee Health Science Center and Semmes Murphey Neurologic and Spine
Clinic. Memphis, TN, USA
| | - Diana Aguiar De Sousa
- Stroke Center, Lisbon Central University
Hospital and Faculty of Medicine, University of Lisbon, Lisbon,
Portugal
| | - Daniel Strbian
- Neurological Research Unit, University Medical
Center Hamburg-Eppendorf, Hamburg, Germany
| | - Valeria Caso
- Neurology Unit, ‘M. Bufalini’ Hospital-AUSL
Romagna, Cesena, Italy
| | - Andrei Alexandrov
- Department of Neurology, The University of
Tennessee Health Science Center, Memphis, TN, USA
| | - Georgios Tsivgoulis
- Second Department of Neurology, Attikon
University Hospital, Rimini 1, Chaidari, 124 62 Athens, Greece
- School of Medicine, National and Kapodistrian
University of Athens, Athens, Greece
- Department of Neurology, The University of
Tennessee Health Science Center, Memphis, TN, USA
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8
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Hendrix P, Chaudhary D, Avula V, Abedi V, Zand R, Noto A, Melamed I, Goren O, Schirmer CM, Griessenauer CJ. Outcomes of Mechanical Thrombectomy in the Early (<6-hour) and Extended (≥6-hour) Time Window Based Solely on Noncontrast CT and CT Angiography: A Propensity Score-Matched Cohort Study. AJNR Am J Neuroradiol 2021; 42:1979-1985. [PMID: 34556475 DOI: 10.3174/ajnr.a7271] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 06/29/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Current stroke care recommendations for patient selection for mechanical thrombectomy in the extended time window demand advanced imaging to determine the stroke core volume and hypoperfusion mismatch, which may not be available at every center. We aimed to determine outcomes in patients selected for mechanical thrombectomy solely on the basis of noncontrast CT and CTA in the early (<6-hour) and extended (≥6-hour) time windows. MATERIALS AND METHODS Consecutive mechanical thrombectomies performed for acute large-vessel occlusion ischemic (ICA, M1, M2) stroke between February 2016 and August 2020 were retrospectively reviewed. Eligibility was based solely on demographics and noncontrast CT (ASPECTS) and CTA, due to the limited availability of perfusion imaging during the study period. Propensity score matching was performed to compare outcomes between time windows. RESULTS Of 417 mechanical thrombectomies performed, 337 met the inclusion criteria, resulting in 205 (60.8%) and 132 (39.2%) patients in the 0- to 6- and 6- to 24-hour time windows, respectively. The ASPECTS was higher in the early time window (9; interquartile range = 8-10) than the extended time window (9; interquartile range = 7-10; P = .005). Propensity score matching yielded 112 well-matched pairs. Equal rates of TICI 2b/3 revascularization and symptomatic intracranial hemorrhage were observed. A favorable functional outcome (mRS 0-2) at 90 days was numerically more frequent in the early window (45.5% versus 33.9%, P = .091). Mortality was numerically more frequent in the early window (25.9% versus 17.0%, P = .096). CONCLUSIONS Patients selected for mechanical thrombectomy in the extended time window solely on the basis of noncontrast CT and CTA still achieved decent rates of favorable 90-day functional outcomes, not statistically different from patients in the early time window.
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Affiliation(s)
- P Hendrix
- From the Department of Neurosurgery (P.H., I.M., O.G., C.M.S., C.J.G.).,Department of Neurosurgery (P.H.), Saarland University Hospital, Homburg, Germany
| | - D Chaudhary
- Department of Neurology (D.C., R.Z., A.N.), Geisinger Neuroscience Institute
| | - V Avula
- Department of Molecular and Functional Genomics (V. Avula, V. Abedi), Geisinger Health System, Danville, Pennsylvania
| | - V Abedi
- Department of Molecular and Functional Genomics (V. Avula, V. Abedi), Geisinger Health System, Danville, Pennsylvania.,Biocomplexity Institute (V. Abedi), Virginia Polytechnic Institute and State University, Blacksburg, Virginia
| | - R Zand
- Department of Neurology (D.C., R.Z., A.N.), Geisinger Neuroscience Institute
| | - A Noto
- Department of Neurology (D.C., R.Z., A.N.), Geisinger Neuroscience Institute
| | - I Melamed
- From the Department of Neurosurgery (P.H., I.M., O.G., C.M.S., C.J.G.)
| | - O Goren
- From the Department of Neurosurgery (P.H., I.M., O.G., C.M.S., C.J.G.)
| | - C M Schirmer
- From the Department of Neurosurgery (P.H., I.M., O.G., C.M.S., C.J.G.).,Research Institute of Neurointervention (C.M.S., C.J.G.)
| | - C J Griessenauer
- From the Department of Neurosurgery (P.H., I.M., O.G., C.M.S., C.J.G.) .,Research Institute of Neurointervention (C.M.S., C.J.G.).,Department of Neurosurgery (C.J.G.), Christian Doppler University Hospital, Paracelsus Medical University, Salzburg, Austria
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