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ESTUDIOS


Influence of the COVID-19 Pandemic on Treatment Times for Acute Ischemic Stroke

James E. Siegler, Alicia M. Zha, Alexandra L. Czap, Santiago Ortega-Gutierrez, Mudassir Farooqui, David S. Liebeskind, Shashvat M. Desai, Ameer E. Hassan, Amy K. Starosciak, Italo Linfante, Vivek Rai, Jesse M. Thon, Ryna Then, Mark E. Heslin, Lauren Thau, Priyank Khandelwal, Mahmoud H. Mohammaden, Diogo C. Haussen, Raul G. Nogueira, Dinesh V. Jillella, Fadi Nahab, Artem Kaliaev, Thanh N. Nguyen, Osama Zaidat, Tudor G. Jovin and Ashutosh P. Jadhav

Background and Purpose: The pandemic caused by the novel coronavirus disease 2019 (COVID-19) has led to an unprecedented paradigm shift in medical care. We sought to evaluate whether the COVID-19 pandemic may have contributed to delays in acute stroke management at comprehensive stroke centers.

Early Infarct Growth Rate Correlation With Endovascular Thrombectomy Clinical Outcomes

Amrou Sarraj, Ameer E. Hassan, James Grotta, Spiros Blackburn, Arthur Day, Michael Abraham, Clark Sitton, Mark Dannenbaum, Chunyan Cai, Deep Pujara, William Hicks, Nirav Vora, Ronald Budzik, Faris Shaker, Ashish Arora, Roy F. Riascos, Haris Kamal, Sheryl Martin-Schild, Maarten Lansberg, Rishi Gupta, Gregory W. Albers and for the SELECT Investigators

Abstract Background and Purpose: Time elapsed from last-known well (LKW) and baseline imaging results are influential on endovascular thrombectomy (EVT) outcomes.

Utility of Severity-Based Prehospital Triage for Endovascular Thrombectomy

Henry Zhao, Karen Smith, Stephen Bernard, Michael Stephenson, Henry Ma, Ronil V. Chandra, Thanh Phan, Christopher F. Bladin, Leonid Churilov, Douglas Crompton, Helen M. Dewey, Tissa Wijeratne, Geoffrey Cloud, Vincent Thijs, Timothy J. Kleinig, Jo Lyn Ng, Cameron Williams, Fana Alemseged, Felix Ng, Peter J. Mitchell, Mark W. Parsons, Nawaf Yassi, Stephen M. Davis and Bruce C.V. Campbell

Abstract Background and Purpose: Severity-based assessment tools may assist in prehospital triage of patients to comprehensive stroke centers (CSCs) for endovascular thrombectomy (EVT), but criticisms regarding diagnostic inaccuracy have not been adequately addressed. This study aimed to quantify the benefits and disadvantages of severity-based triage in a large real-world paramedic validation of the Ambulance Clinical Triage for Acute Stroke Treatment (ACT-FAST) algorithm.

Importance of Occlusion Site for Thrombectomy Technique in Stroke

Marie Louise E. Bernsen, Robert-Jan B. Goldhoorn, Hester F. Lingsma, Robert J. van Oostenbrugge, Wim H. van Zwam, Maarten Uyttenboogaart, Yvo B.W.E.M. Roos, Jasper M. Martens and Jeannette Hofmeijer

Abstract Background and Purpose: Thrombectomy with stent retriever and direct aspiration are equally effective in the endovascular treatment of anterior circulation acute ischemic stroke. We report efficacy and safety of initial treatment technique per occlusion segment.

Mismatch Profile Influences Outcome After Mechanical Thrombectomy

Jean-Marc Olivot, Jean-François Albucher, Adrien Guenego, Claire Thalamas, Michael Mlynash, Vanessa Rousseau, Amel Drif, Soren Christensen, Agnes Sommet, Alain Viguier, Jean Darcourt, Lionel Calvière, Patrice Menegon, Nicolas Raposo, Anne-Christine Januel, Fabrice Bonneville, Thomas Tourdias, Mikael Mazighi, Igor Sibon, Gregory W. Albers and Christophe Cognard

Background and Purpose: Mechanical thrombectomy (MT) is the recommended treatment for acute ischemic stroke caused by anterior circulation large vessel occlusion. However, despite a high rate of reperfusion, the clinical response to successful MT remains highly variable in the early time window where optimal imaging selection criteria have not been established. We hypothesize that the baseline perfusion imaging profile may help forecast the clinical response to MT in this setting.

Bridging Thrombolysis Achieved Better Outcomes Than Direct Thrombectomy After Large Vessel Occlusion

Yuting Wang, Xiao Wu, Chengcheng Zhu, Mahmud Mossa-Basha and Ajay Malhotra

Abstract The utility and necessity of pretreatment with intravenous thrombolysis (IVT) before mechanical thrombectomy (MT) remains an issue of strong debate. This study aims to compare the outcomes of bridging thrombolysis (BT, IVT+MT) with direct MT (d-MT) after large vessel ischemic stroke based on the most up-to-date evidence. MEDLINE, EMBASE, Scopus, and the Cochrane Library from January 2017 to June 2020 were searched for studies that directly compared the outcomes of the 2 strategies. Methodological quality was assessed using the Quality in Prognostic Studies tool. Combined estimates of odds ratios (ORs) of BT versus d-MT were derived. Multiple subgroup analyses were performed, especially for IVT-eligible patients. Thirty studies involving 7191 patients in the BT group and 4891 patients in the d-MT group were included. Methodological quality was generally high. Compared with patients in the d-MT group, patients in the BT group showed significantly better functional independence (modified Rankin Scale score 0–2) at 90 days (OR=1.43 [95% CI, 1.28–1.61]), had lower mortality at 90 days (OR=0.67 [95% CI, 0.60–0.75]), and achieved higher successful recanalization (modified Thrombolysis in Cerebral Ischemia score 2b-3) rate (OR=1.23 [95% CI, 1.07–1.42]). No significant difference was detected in the occurrence of symptomatic intracranial hemorrhage between 2 groups (OR=1.01 [95% CI, 0.86–1.19]). Subgroup analysis showed that functional independence frequency remained significantly higher in BT group regardless of IVT eligibility or study design. Compared with d-MT, bridging with IVT led to better clinical outcomes, lower mortality at 90 days, and higher successful recanalization rates, without increasing the risk of near-term hemorrhagic complications. The benefits of BT based on this most recent literature evidence support the current guidelines of using BT.

Cerebral Venous Thrombosis

Jori O. Ruuskanen, Ville Kytö, Jussi P. Posti, Päivi Rautava and Jussi O.T. Sipilä

Abstract Background and Purpose: Epidemiology of cerebral venous thrombosis (CVT) has been reported to be changing. Because long-term nationwide data are needed to confirm this, we studied CVT occurrence between 2005 and 2014 in Finland

Leptomeningeal Collateral Flow Modifies Endovascular Treatment Efficacy on Large-Vessel Occlusion Strokes

Álvaro García-Tornel, Ludovico Ciolli, Marta Rubiera, Manuel Requena, Marian Muchada, Jorge Pagola, David Rodriguez-Luna, Matias Deck, Jesus Juega, Noelia Rodríguez-Villatoro, Sandra Boned, Marta Olivé-Gadea, Estela Sanjuan, Alejandro Tomasello, Carlos Piñana, David Hernández, José Álvarez-Sabin, Carlos A. Molina and Marc Ribó

Abstract Background and Purpose: We aim to evaluate if good collateral flow (CF) modifies endovascular therapy (EVT) efficacy on large-vessel stroke. To do that, we used final degree of reperfusion and number of device-passes performed, factors previously associated with better functional outcome, as main outcome measures.

Real-World Treatment Trends in Endovascular Stroke Therapy

Hamidreza Saber, Babak B. Navi, James C. Grotta, Hooman Kamel, Arvind Bambhroliya, Farhaan S. Vahidy, Peng Roc Chen, Spiros Blackburn, Sean I. Savitz, Louise McCullough and Sunil A. Sheth

Abstract Background and Purpose— Recent landmark trials provided overwhelming evidence for effectiveness of endovascular stroke therapy (EST). Yet, the impact of these trials on clinical practice and effectiveness of EST among lower volume centers remains poorly characterized. Here, we determine population-level patterns in EST performance in US hospitals and compare EST outcomes from higher versus lower volume centers.

Glucose Modifies the Effect of Endovascular Thrombectomy in Patients With Acute Stroke

Ángel Chamorro, Scott Brown, Sergio Amaro, Michael D. Hill, Keith W. Muir, Diederik W.J. Dippel, Wim van Zwam, Ken Butcher, Gary A. Ford, Heleen M. den Hertog, Peter J. Mitchell, Andrew M. Demchuk, Charles B.L.M. Majoie, Serge Bracard, Igor Sibon, Ashutosh P. Jadhav, Blanca Lara-Rodriguez, Aad van der Lugt, Elizabeth Osei, Arturo Renú, Sébastien Richard, David Rodriguez-Luna, Geoffrey A Donnan, Anand Dixit, Mohammed Almekhlafi, Sandrine Deltour, Jonathan Epstein, Benoit Guillon, Serge Bakchine, Meritxell Gomis, Richard du Mesnil de Rochemont, Demetrius Lopes, Vivek Reddy, Gernot Rudel, Yvo B.W. E.M. Roos, Alain Bonafe, Hans-Christoph Diener, Olvert A. Berkhemer, Geoffrey C. Cloud, Stephen M. Davis, Robert van Oostenbrugge, Francis Guillemin, Mayank Goyal, Bruce C.V. Campbell, Bijoy K. Menon and for the HERMES Collaborators

Abstract Background and Purpose— Hyperglycemia is a negative prognostic factor after acute ischemic stroke but is not known whether glucose is associated with the effects of endovascular thrombectomy (EVT) in patients with large-vessel stroke. In a pooled-data meta-analysis, we analyzed whether serum glucose is a treatment modifier of the efficacy of EVT in acute stroke.

Impact of Balloon Guide Catheter Use on Clinical and Angiographic Outcomes in the STRATIS Stroke Thrombectomy Registry

Osama O. Zaidat, Nils H. Mueller-Kronast, Ameer E. Hassan, Diogo C. Haussen, Ashutosh P. Jadhav, Michael T. Froehler, Reza Jahan, Mohammad Ali Aziz-Sultan, Richard P. Klucznik, Jeffrey L. Saver, Frank R. Hellinger Jr, Dileep R. Yavagal, Tom L. Yao, Rishi Gupta, Coleman O. Martin, Hormozd Bozorgchami, Ritesh Kaushal, Raul G. Nogueira, Ravi H. Gandhi, Eric C. Peterson, Shervin Dashti, Curtis A. Given II, Brijesh P. Mehta, Vivek Deshmukh, Sidney Starkman, Italo Linfante, Scott H. McPherson, Peter Kvamme, Thomas J. Grobelny, Muhammad Shazam Hussain, Ike Thacker, Nirav Vora, Peng Roc Chen, Stephen J. Monteith, Robert D. Ecker, Clemens M. Schirmer, Eric Sauvageau, Alex Bou Chebl, Colin P. Derdeyn, Lucian Maidan, Aamir Badruddin, Adnan H. Siddiqui, Travis M. Dumont, Abdulnasser Alhajeri, Muhammad A. Taqi, Khaled Asi, Jeffrey Carpenter, Alan Boulos, Gaurav Jindal, Ajit S. Puri, Rohan Chitale, Eric M. Deshaies, David Robinson, David F. Kallmes, Blaise W. Baxter, Mouhammed Jumaa, Peter Sunenshine, Aniel Majjhoo, Joey D. English, Shuichi Suzuki, Richard D. Fessler, Josser Delgado-Almandoz, Jerry C. Martin, David S. Liebeskind and on behalf of the STRATIS Investigators

Abstract Background and Purpose— Mechanical thrombectomy has been shown to improve clinical outcomes in patients with acute ischemic stroke. However, the impact of balloon guide catheter (BGC) use is not well established.

Effects of a Disease Management Program for Preventing Recurrent Ischemic Stroke

Yasuko Fukuoka, Naohisa Hosomi, Takeshi Hyakuta, Toyonori Omori, Yasuhiro Ito, Jyunichi Uemura, Yoshiki Yagita, Kazumi Kimura, Masayasu Matsumoto, Michiko Moriyama and for DMP Stroke Trial Investigators

Abstract Background and Purpose— Disease management is a healthcare strategy that includes self-management education and treatment coordination. We conducted a randomized controlled trial to determine whether a disease management program intervention could improve risk factor profiles and, thus, reduce the recurrence of stroke and other cardiovascular diseases.

Association of Perforator Stroke After Basilar Artery Stenting With Negative Remodeling

Ning Ma, Ziqi Xu, Jinhao Lyu, Mingyao Li, Zhikai Hou, Yifan Liu, Ming Yang, Dapeng Mo, Feng Gao, Ligang Song, Xuan Sun, Lian Liu, Xin Liu, Binbin Sui, Mi Shen, Lin Ma, Yilong Wang, Yongjun Wang, Zhongrong Miao and Xin Lou

Abstract Background and Purpose— We try to evaluate whether plaque features and perforator stroke after intracranial stenting is associated with the arterial remodeling patterns in patients with severe basilar artery stenosis.

Better Collaterals Are Independently Associated With Post-Thrombolysis Recanalization Before Thrombectomy

Pierre Seners, Pauline Roca, Laurence Legrand, Guillaume Turc, Jean-Philippe Cottier, Tae-Hee Cho, Caroline Arquizan, Serge Bracard, Canan Ozsancak, Wagih Ben Hassen, Olivier Naggara, Stéphanie Lion, Séverine Debiais, Yves Berthezene, Vincent Costalat, Sébastien Richard, Christophe Magni, Jean-Louis Mas, Jean-Claude Baron and Catherine Oppenheim

Abstract Background and Purpose— In acute stroke patients with large vessel occlusion, the goal of intravenous thrombolysis (IVT) is to achieve early recanalization (ER). Apart from occlusion site and thrombus length, predictors of early post-IVT recanalization are poorly known. Better collaterals might also facilitate ER, for instance, by improving delivery of the thrombolytic agent to both ends of the thrombus. In this proof-of-concept study, we tested the hypothesis that good collaterals independently predict post-IVT recanalization before thrombectomy.

Mechanical Thrombectomy in Ischemic Stroke Patients With Alberta Stroke Program Early Computed Tomography Score 0–5

Johannes Kaesmacher, Panagiotis Chaloulos-Iakovidis, Leonidas Panos, Pasquale Mordasini, Patrik Michel, Steven D. Hajdu, Marc Ribo, Manuel Requena, Christian Maegerlein, Benjamin Friedrich, Vincent Costalat, Amel Benali, Laurent Pierot, Matthias Gawlitza, Joanna Schaafsma, Vitor Mendes Pereira, Jan Gralla and Urs Fischer

Abstract Background and Purpose— If anterior circulation large vessel occlusion acute ischemic stroke patients presenting with ASPECTS 0–5 (Alberta Stroke Program Early CT Score) should be treated with mechanical thrombectomy remains unclear. Purpose of this study was to report on the outcome of patients with ASPECTS 0–5 treated with mechanical thrombectomy and to provide data regarding the effect of successful reperfusion on clinical outcomes and safety measures in these patients.

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