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Rodriguez-Calienes A, Galecio-Castillo M, Vivanco-Suarez J, Mohamed GA, Toth G, Sarraj A, Pujara D, Chowdhury AA, Farooqui M, Ghannam M, Samaniego EA, Jovin TG, Ortega-Gutierrez S. Endovascular thrombectomy beyond 24 hours from last known well: a systematic review with meta-analysis. J Neurointerv Surg 2024; 16:670-676. [PMID: 37355251 DOI: 10.1136/jnis-2023-020443] [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] [Accepted: 06/04/2023] [Indexed: 06/26/2023]
Abstract
BACKGROUND Different studies have demonstrated the benefit of endovascular treatment (EVT) up to 24 hours after acute ischemic stroke (AIS) onset. Recent cohort observational studies suggest that patients with large vessel occlusion AIS may benefit from EVT beyond 24 hours from the last known well (LKW) when adequately selected. We aimed to examine the safety and efficacy of EVT beyond 24 hours from LKW using a meta-analysis of all the literature available. METHODS A systematic search from inception to April 2023 was conducted for studies including AIS patients with EVT beyond 24 hours from LKW in Medline, Embase, Scopus, and Web of Science. Outcomes of interest included favorable functional outcome (90-day modified Rankin scale (mRS) 0-2), successful reperfusion (modified Thrombolysis in Cerebral Infarction (mTICI) 2b-3), symptomatic intracerebral hemorrhage (sICH), and 90-day mortality. Data were pooled using a random-effects model. RESULTS Twelve studies with 894 patients were included. The rate of favorable functional outcome was 40% (95% CI 31% to 49%; I2=76%). The rate of successful reperfusion was 83% (95% CI 80% to 85%; I2=0%). The sICH rate was 7% (95% CI 5% to 9%; I2=0%) and the 90-day mortality rate was 28% (95% CI 24% to 33%; I2=0%). There was no significant difference in favorable outcomes (OR=0.69; 95% CI 0.41 to 1.14) and 90-day mortality (OR=1.35; 95% CI 0.90 to 2.00) among patients who underwent EVT <24 hours versus >24 hours. CONCLUSIONS EVT beyond 24 hours from LKW may achieve favorable clinical outcomes and high reperfusion rates, with acceptable intracranial hemorrhage rates in selected patients. Considering the current certainty of the evidence and heterogenous individual study results, larger prospective trials are warranted.
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Affiliation(s)
- Aaron Rodriguez-Calienes
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
- Neuroscience, Clinical Effectiveness and Public Health Research Group, Universidad Científica del Sur, Lima, Peru
| | | | - Juan Vivanco-Suarez
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Ghada A Mohamed
- Department of Neurology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Gabor Toth
- Cerebrovascular Center, Cleveland Clinic, Cleveland, Ohio, USA
| | - Amrou Sarraj
- Department of Neurology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Deep Pujara
- Department of Neurology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Aj A Chowdhury
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Mudassir Farooqui
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Malik Ghannam
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Edgar A Samaniego
- Department of Neurology, Neurosurgery & Radiology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Tudor G Jovin
- Cooper Neurological Institute, Cooper University Hospital, Camden, New Jersey, USA
| | - Santiago Ortega-Gutierrez
- Department of Neurology, Neurosurgery & Radiology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
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Larcipretti ALL, Gomes FC, Dagostin CS, Nager GB, Udoma-Udofa OC, Pontes JPM, de Oliveira JS, Bannach MDA. Is time really brain in stroke therapy?: A meta-analysis of mechanical thrombectomy up to 155 h post ictus. Acta Neurochir (Wien) 2024; 166:195. [PMID: 38668855 DOI: 10.1007/s00701-024-06070-6] [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: 12/21/2023] [Accepted: 04/04/2024] [Indexed: 05/04/2024]
Abstract
BACKGROUND AND OBJECTIVES Mechanical thrombectomy (MT) has been established as the gold standard of treatment for patients with Acute Ischemic Stroke (AIS) who present up to 6 h after the onset of the stroke. Recently, the DEFUSE-3 and DAWN trials established the safety of starting the MT procedure up to 16 and 24 h after the patient was last seen well, respectively. The purpose of this study is to assess the safety and functional effects of thrombectomy in individuals with AIS detected at a late stage (> 24 h). MATERIALS AND METHODS PubMed, Web of Science, Embase, and Cochrane databases were thoroughly searched for research on MT in patients in the extremely late time window after AIS. The primary outcomes were symptomatic cerebral hemorrhage, 90-day mortality, Thrombolysis in Cerebral Infarction (TICI) 2b-3, and Modified Rankin Scale (mRS) 0-2. RESULTS Our study included fifteen studies involving a total of 1,221 patients who presented with AIS and an extended time window. The primary outcome of interest was the favorable functional outcome, mRS 0-2 at 90 days. The pooled proportion for this outcome was 45% (95% confidence interval 34-58%). Other outcomes included the TICI 2b or 3 (successful recanalization), which was reported in 12 studies and had a 79% incidence in the study population (95% CI 68-87%). Complications included: symptomatic intracranial hemorrhage (sICH), which revealed an incidence of 7% in the study population (95% CI 5-10%); and 90-day mortality, which reported a 27% incidence (95% CI 24-31%). In addition, we conducted a comparative analysis between endovascular treatment and standard medical therapy. CONCLUSION Our meta-analysis provides evidence that supports the need of further randomized and prospective clinical trials to better assess the effectiveness and safety of MT in these patients.
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Affiliation(s)
| | | | | | - Gabriela Borges Nager
- Faculty of Medicine, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Julia Pereira Muniz Pontes
- Department of Surgical Specialties, Neurosurgery Teaching and Assistance Unit, Pedro Ernesto University Hospital, Rio de Janeiro State University, Rio de Janeiro, Brazil
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Ungerer MN, Bartig D, Richter D, Krogias C, Hacke W, Gumbinger C. The evolution of acute stroke care in Germany from 2019 to 2021: analysis of nation-wide administrative datasets. Neurol Res Pract 2024; 6:4. [PMID: 38200611 PMCID: PMC10782681 DOI: 10.1186/s42466-023-00297-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/05/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND The treatment of ischemic stroke (IS) has changed considerably in recent years. Particularly the advent of mechanical thrombectomy (MTE) has revolutionized the available treatment options. Most patients in developed countries have access to intravenous thrombolysis (IVT). However access to MTE remains restricted in some regions despite efforts to increase its availability. We performed an evaluation of national datasets to monitor improvements made in access to revascularization therapies for IS patients in Germany. METHODS We analyzed national datasets on German Diagnosis-Related Groups and structured quality reports by extracting information of patients admitted with stroke with and without IVT and MTE for the period of 2019-2021. Data from 2016 and limited data for 2022 were also included for comparison. RESULTS Admissions with ischemic stroke declined during the years of the COVID 19 pandemic by 4.5% from 227,258 in 2019 to 216,923 in 2021. IVT rates were stable with 16.3% being treated with IVT in 2019 and 2021. MTE rates continued to increase from 7.1 to 8.4% and the number of MTE centers increased by 14.8% in the same period. Over 87.3% of MTEs were performed in centers with a case volume exceeding 50 cases per year in 2021. The largest increase in the relative share of MTEs was seen in large MTE centers (n ≥ 200). Patient age for MTEs surpassed the age for IVTs in 2019 and the proportion of patients ≥ 80 years receiving MTE continued to increase. The proportion of regions in Germany with poor MTE rates (≤ 4.1%) decreased significantly from 2019 (12.3%) to 2021 (5.3%) (p < 0.001). CONCLUSIONS We found strong evidence that while IVT rates reached a temporary ceiling effect, both the absolute number of and access to MTEs continued to increase in Germany. Regional disparities have become less significant and the majority of MTEs are performed in centers with medium or high case volumes.
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Affiliation(s)
- Matthias N Ungerer
- Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany.
| | | | - Daniel Richter
- Department of Neurology, Evangelisches Krankenhaus Herne, Academic Teaching Hospital of the Ruhr-University Bochum, Herne, Germany
| | - Christos Krogias
- Department of Neurology, Evangelisches Krankenhaus Herne, Academic Teaching Hospital of the Ruhr-University Bochum, Herne, Germany
| | - Werner Hacke
- Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany
| | - Christoph Gumbinger
- Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany
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4
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Ash M, Dimisko L, Chalhoub RM, Howard BM, Cawley CM, Matouk C, Pabaney A, Spiotta AM, Jabbour P, Maier I, Wolfe SQ, Rai AT, Kim JT, Psychogios MN, Mascitelli JR, Starke RM, Shaban A, Yoshimura S, De Leacy R, Kan P, Fragata I, Polifka AJ, Arthur AS, Park MS, Crosa RJ, Williamson R, Dumont TM, Levitt MR, Al Kasab S, Tjoumakaris SI, Liman J, Saad H, Samaniego EA, Fargen KM, Grossberg JA, Alawieh A. Comprehensive analysis of the impact of procedure time and the 'golden hour' in subpopulations of stroke thrombectomy patients. J Neurointerv Surg 2023:jnis-2023-020792. [PMID: 37875342 DOI: 10.1136/jnis-2023-020792] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/19/2023] [Indexed: 10/26/2023]
Abstract
OBJECTIVE To evaluate the effect of procedure time on thrombectomy outcomes in different subpopulations of patients undergoing endovascular thrombectomy (EVT), given the recently expanded indications for EVT. METHODS This multicenter study included patients undergoing EVT for acute ischemic stroke at 35 centers globally. Procedure time was defined as time from groin puncture to successful recanalization (Thrombolysis in Cerebral Infarction score ≥2b) or abortion of procedure. Patients were stratified based on stroke location, use of IV tissue plasminogen activator (tPA), Alberta Stroke Program Early CT score, age group, and onset-to-groin time. Primary outcome was the 90-day modified Rankin Scale (mRS) score, with scores 0-2 designating good outcome. Secondary outcome was postprocedural symptomatic intracranial hemorrhage (sICH). Multivariate analyses were performed using generalized linear models to study the impact of procedure time on outcomes in each subpopulation. RESULTS Among 8961 patients included in the study, a longer procedure time was associated with higher odds of poor outcome (mRS score 3-6), with 10% increase in odds for each 10 min increment. When procedure time exceeded the 'golden hour', poor outcome was twice as likely. The golden hour effect was consistent in patients with anterior and posterior circulation strokes, proximal or distal occlusions, in patients with large core infarcts, with or without IV tPA treatment, and across age groups. Procedures exceeding 1 hour were associated with a 40% higher sICH rate. Posterior circulation strokes, delayed presentation, and old age were the variables most sensitive to procedure time. CONCLUSIONS In this work we demonstrate the universality of the golden hour effect, in which procedures lasting more than 1 hour are associated with worse clinical outcomes and higher rates of sICH across different subpopulations of patients undergoing EVT.
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Affiliation(s)
- Makenna Ash
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Laurie Dimisko
- Nell Hodgson Woodruff School of Nursing, Emory Healthcare, Atlanta, Georgia, USA
| | - Reda M Chalhoub
- Department of Neurosurgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Brian M Howard
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia, USA
| | - C Michael Cawley
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Charles Matouk
- Department of Neurosurgery, Yale University, New Haven, Connecticut, USA
| | - Aqueel Pabaney
- Department of Neurosurgery, Grady Memorial Hospital, Atlanta, Georgia, USA
| | - Alejandro M Spiotta
- Department of Neurosurgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Pascal Jabbour
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
| | - Ilko Maier
- Department of Neurology, University Medicine Goettingen, Goettingen, NS, Germany
| | - Stacey Q Wolfe
- Department of Neurosurgery, Wake Forest School of Medicine, Winston Salem, North Carolina, USA
| | - Ansaar T Rai
- Department of Interventional Neuroradiology, West Virginia University Rockefeller Neuroscience Institute, Morgantown, West Virginia, USA
| | - Joon-Tae Kim
- Department of Neurosurgery and Radiology, Chonnam National University, Gwangju, Jeollanam-do, Korea
| | - Marios-Nikos Psychogios
- Department of Neuroradiology, Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland
| | - Justin R Mascitelli
- Department of Neurosurgery, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Robert M Starke
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
- University of Miami School of Medicine, Miami, Florida, USA
| | - Amir Shaban
- Department of Neurology, University of Iowa Roy J and Lucille A Carver College of Medicine, Iowa City, Iowa, USA
| | - Shinichi Yoshimura
- Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Reade De Leacy
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Peter Kan
- Department of Neurosurgery, University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Isabel Fragata
- Department of Neuroradiology, Centro Hospitalar de Lisboa Central, Lisboa, Portugal
| | - Adam J Polifka
- Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
| | - Adam S Arthur
- Department of Neurosurgery, Semmes-Murphey Neurologic and Spine Institute, Memphis, Tennessee, USA
- Department of Neurosurgery, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Min S Park
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona, USA
| | - Roberto Javier Crosa
- Department of Endovascular Neurosurgery, Médica Uruguaya, Montevideo, Montevideo, Uruguay
| | - Richard Williamson
- Stroke and Cerebrovascular Center, Baptist Medical Center Jacksonville, Jacksonville, Florida, USA
| | - Travis M Dumont
- Department of Surgery, Division of Neurosurgery, University of Arizona/Arizona Health Science Center, Tucson, Arizona, USA
| | - Michael R Levitt
- Department of Neurological Surgery, University of Washington School of Medicine, Seattle, Washington, USA
| | - Sami Al Kasab
- Department of Neurology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Stavropoula I Tjoumakaris
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
| | - Jan Liman
- Department of Neurology, University Medicine Goettingen, Goettingen, NS, Germany
| | - Hassan Saad
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Edgar A Samaniego
- Department of Neurology, The University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Kyle M Fargen
- Department of Neurosurgery, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Jonathan A Grossberg
- Department of Neurosurgery and Radiology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Ali Alawieh
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
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Rodriguez-Calienes A, Hassan AE, Siegler JE, Galecio-Castillo M, Farooqui M, Jumaa MA, Janjua N, Divani AA, Ribo M, Abraham M, Petersen NH, Fifi J, Guerrero WR, Malik AM, Nguyen TN, Sheth S, Yoo AJ, Linares G, Lu Y, Vivanco-Suarez J, Ortega-Gutierrez S. Mechanical thrombectomy beyond 24 hours from last known well in tandem lesions: A multicenter cohort study. Interv Neuroradiol 2023:15910199231196960. [PMID: 37642978 DOI: 10.1177/15910199231196960] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND While recent studies suggest a benefit of mechanical thrombectomy (MT) for the treatment of patients with isolated large vessel occlusions presenting after 24 hours from the last known well (LKW), the effect of MT for acute cervical tandem lesions (TLs) beyond 24 hours remains unknown. We aimed to evaluate the safety and effectiveness of MT beyond 24 hours of LKW in patients with TLs. METHODS We conducted a subanalysis study of patients with anterior circulation TL enrolled in a large, multicenter registry between January 2015 and December 2020. Patients were divided into 2 groups: MT beyond 24 hours versus MT 0-24-hour window. Outcomes of interest were functional independence (90-day modified Rankin scale 0-2), complete reperfusion (modified thrombolysis in cerebral infarction 3), delta NIH Stroke Scale (NIHSS), symptomatic intracranial hemorrhage (sICH), parenchymal hematoma 2 (PH2), in-hospital mortality, and 90-day mortality. Inverse probability of treatment weighting (IPTW) was used to balance the groups. RESULTS Overall, 589 participants were included, with 33 treated beyond 24 hours and 556 treated in the 0-24-hour window. After IPTW, we found no significant difference in the rates of achieving functional independence (odds ratio (OR) = 0.51; 95% confidence interval (CI) 0.22-1.16; p = 0.108), complete reperfusion (OR = 1.35; 95% CI 0.60-3.05; p = 0.464), sICH (OR = 1.96; 95% CI 0.37-10.5; p = 0.429), delta NIHSS (β = -3.61; 95% CI -8.11 to 0.87; p = 0.114), PH2 (OR = 1.46; 95% CI 0.29-7.27; p = 0.642), in-hospital mortality (OR = 1.74; 95% CI 0.52-5.86; p = 0.370), or 90-day mortality (OR = 1.37; 95% CI 0.49-3.83; p = 0.544) across both time windows. CONCLUSIONS Our results suggest that MT appears to benefit patients with TLs beyond 24 hours from LKW. Future prospective studies are warranted.
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Affiliation(s)
- Aaron Rodriguez-Calienes
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
- Neuroscience, Clinical Effectiveness and Public Health Research Group, Universidad Cientifica del Sur, Lima, Peru
| | - Ameer E Hassan
- Department of Neurology, Valley Baptist Medical Center / University of Texas Rio Grande Valley, Harlingen, TX, USA
| | - James E Siegler
- Cooper Neurological Institute, Cooper University Hospital, Camden, NJ, USA
- Cooper Medical School of Rowan University, Camden, NJ, USA
| | | | - Mudassir Farooqui
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | | | - Nazli Janjua
- Asia Pacific Comprehensive Stroke Institute, Pomona Valley Hospital Medical Center, Pomona, CA, USA
| | - Afshin A Divani
- Department of Neurology, University of New Mexico Health Science Center, Albuquerque, NM, USA
| | - Marc Ribo
- Department of Neurology, Hospital Vall d'Hebron, Barcelona, Spain
| | - Michael Abraham
- Department of Neurology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Nils H Petersen
- Department of Neurology, Yale University School of Medicine, New Haven, CT, USA
| | - Johanna Fifi
- Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Waldo R Guerrero
- Department of Neurology and Brain Repair, University of South Florida, Tampa, FL, USA
| | - Amer M Malik
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Thanh N Nguyen
- Department of Radiology, Boston Medical Center, Boston, MA, USA
| | - Sunil Sheth
- Department of Neurology, UT Health McGovern Medical School, Houston, TX, USA
| | - Albert J Yoo
- Texas Stroke Institute, Dallas-Fort Worth, TX, USA
| | | | - Yujing Lu
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Juan Vivanco-Suarez
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Santiago Ortega-Gutierrez
- Department of Neurology, Neurosurgery & Radiology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
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Kobeissi H, Ghozy S, Adusumilli G, Kadirvel R, Brinjikji W, Rabinstein AA, Kallmes DF. Endovascular Therapy for Stroke Presenting Beyond 24 Hours: A Systematic Review and Meta-analysis. JAMA Netw Open 2023; 6:e2311768. [PMID: 37140919 PMCID: PMC10160871 DOI: 10.1001/jamanetworkopen.2023.11768] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/05/2023] Open
Abstract
Importance Previous randomized clinical trials (RCTs) have supported the use of endovascular therapy (EVT) in late-window acute ischemic stroke (AIS; 6-24 hours). However, little is known about the use of EVT in very late-window AIS (>24 hours). Objective To examine outcomes following EVT for very late-window AIS. Data Sources A systematic review of the English language literature was conducted using Web of Science, Embase, Scopus, and PubMed to search for articles published from database inception until December 13, 2022. Study Selection This systematic review and meta-analysis included published studies regarding very late-window AIS treated with EVT. Multiple reviewers screened studies, and an extensive manual search of the references of included articles was performed to identify any missed articles. Of the 1754 initially retrieved studies, 7 published between 2018 and 2023 were ultimately included. Data Extraction and Synthesis Data were extracted independently by multiple authors and evaluated for consensus. Data were pooled using a random-effects model. This study is reported per the Preferred Reporting Items for Systematic Reviews and Meta-Analyses 2020 guideline, and the protocol was prospectively registered with PROSPERO. Main Outcomes and Measures The primary outcome of interest was functional independence, as assessed with 90-day modified Rankin Scale (mRS) scores (0-2). Secondary outcomes included thrombolysis in cerebral infarction (TICI) scores (2b-3 or 3), symptomatic intracranial hemorrhage (sICH), 90-day mortality, early neurological improvement (ENI), and early neurological deterioration (END). Frequencies and means were pooled with the corresponding 95% CIs. Results This review included 7 studies involving a total of 569 patients. The mean baseline National Institutes of Health Stroke Scale score was 13.6 (95% CI, 11.9-15.5), and the mean Alberta Stroke Program Early CT Score was 7.9 (95% CI, 7.2-8.7). The mean time from last known well and/or onset to puncture was 46.2 hours (95% CI, 32.4-65.9 hours). Frequencies for the primary and secondary outcomes were 32.0% (95% CI, 24.7%-40.2%) for functional independence (90-day mRS scores of 0-2) and 81.9% (95% CI, 78.5%-84.9%) for TICI scores of 2b to 3, 45.3% (95% CI, 36.6%-54.4%) for TICI scores of 3, 6.8% (95% CI, 4.3%-10.7%) for sICH, and 27.2% (95% CI, 22.9%-31.9%) for 90-day mortality. In addition, frequencies were 36.9% (95% CI, 26.4%-48.9%) for ENI and 14.3% (95% CI, 7.1%-26.7%) for END. Conclusions and Relevance In this review, EVT for very late-window AIS was associated with favorable frequencies of 90-day mRS scores of 0 to 2 and TICI scores of 2b to 3 and with low frequencies of 90-day mortality and sICH. These results suggest that EVT may be safe and associated with improved outcomes for very late-window AIS, although RCTs and prospective, comparative studies are needed to determine which patients may benefit from very late intervention.
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Affiliation(s)
- Hassan Kobeissi
- Department of Radiology, Mayo Clinic, Rochester, Minnesota
- College of Medicine, Central Michigan University, Mount Pleasant
| | - Sherief Ghozy
- Department of Radiology, Mayo Clinic, Rochester, Minnesota
| | | | - Ramanathan Kadirvel
- Department of Radiology, Mayo Clinic, Rochester, Minnesota
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota
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