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Ischemic stroke thrombolysis

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https://www.readbyqxmd.com/read/29345016/evaluation-of-the-implementation-of-a-24-hour-stroke-thrombolysis-emergency-treatment-for-patients-with-acute-ischemic-stroke
#1
Jun Zhao, Xingqiang Li, Yingchun Liang, Liang Zhao, Xinping Zhang, Yunlin Liu
AIMS AND OBJECTIVES: To assess the trends of intravenous (IV) thrombolysis with recombinant tissue plasminogen activator (rt-PA) among patients with acute ischemic stroke (AIS) admitted to our hospital between 2012 and 2014 and investigate the effects of a 24-hours (h) stroke thrombolysis emergency treatment on the intra-hospital clinical data and outcomes of these patients treated with IV rt-PA thrombolysis. BACKGROUND: Although pre-notification of stroke by emergency medical services have been endorsed by the national recommendations and implemented in some developed countries, the development in China is limited...
January 18, 2018: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/29341345/increase-in-neutrophil-after-r-tpa-thrombolysis-predicts-poor-functional-outcome-of-ischemic-stroke-a-longitudinal-study
#2
Jijun Shi, Hao Peng, Shoujiang You, Yuanyuan Liu, Jiaping Xu, Yingying Xu, Huihui Liu, Rongfang Shi, Yongjun Cao, Chun-Feng Liu
BACKGROUND: Neutrophil, a pivotal immune responder to ischemic brain insult, has been involved in neuroplasticity and increases after stroke. r-tPA, a promising treatment improving neuroplasticity, promotes neutrophil degranulation. However, the dynamic profile of neutrophil after r-tPA treatment and its effect on neurological recovery after stroke is not well studied. METHODS: We measured cell counts of neutrophil, lymphocyte, and their ratio (NLR) on admission and 24 hours after r-tPA infusion in 372 consecutively recruited acute ischemic stroke patients (mean age 64 years)...
January 17, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29338750/reperfusion-therapy-in-acute-ischemic-stroke-dawn-of-a-new-era
#3
REVIEW
Sonu Bhaskar, Peter Stanwell, Dennis Cordato, John Attia, Christopher Levi
Following the success of recent endovascular trials, endovascular therapy has emerged as an exciting addition to the arsenal of clinical management of patients with acute ischemic stroke (AIS). In this paper, we present an extensive overview of intravenous and endovascular reperfusion strategies, recent advances in AIS neurointervention, limitations of various treatment paradigms, and provide insights on imaging-guided reperfusion therapies. A roadmap for imaging guided reperfusion treatment workflow in AIS is also proposed...
January 16, 2018: BMC Neurology
https://www.readbyqxmd.com/read/29333567/predictors-for-intracranial-hemorrhage-following-intravenous-thrombolysis-in-posterior-circulation-stroke
#4
Dorňák Tomáš, Král Michal, Sedláčková Zuzana, Šaňák Daniel, Čecháková Eva, Divišová Petra, Zapletalová Jana, Kaňovský Petr
Intravenous thrombolysis (IVT) is a standard treatment for anterior (ACS) and posterior circulation stroke (PCS). However, due to the low occurrence of PCS and of intracranial hemorrhage (ICH) in PCS, the knowledge about ICH predictors following IVT in PCS is sparse. Our aim was to identify predictors for ICH following IVT in PCS. The set consisted of 1281 consecutive ischemic stroke (IS) patients treated with IVT, out of which 158 (103 males; mean age 65.6 ± 12.3 years) had PCS. Collected data include baseline characteristics, common stroke risk factors, pre-medication, stroke severity, admission blood glucose level, blood pressure and treatment with intravenous antihypertensive therapy before and during IVT, occlusion of arteries, recanalization rate, time to treatment, and clinical outcome at day 90...
January 15, 2018: Translational Stroke Research
https://www.readbyqxmd.com/read/29327997/mechanical-thrombectomy-in-basilar-artery-occlusion-influence-of-reperfusion-on-clinical-outcome-and-impact-of-the-first-line-strategy-adapt-vs-stent-retriever
#5
Benjamin Gory, Mikael Mazighi, Raphael Blanc, Julien Labreuche, Michel Piotin, Francis Turjman, Bertrand Lapergue
OBJECTIVE Several randomized trials have been focused on patients with anterior circulation stroke, whereas few data on posterior circulation stroke are available. Thus, new mechanical thrombectomy (MT) strategies, including a direct-aspiration first-pass technique (ADAPT), remain to be evaluated in basilar artery occlusion (BAO) patients. The authors here assessed the influence of reperfusion on outcome in BAO patients and examined whether ADAPT improves the reperfusion rate compared with stent retriever devices...
January 12, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29322481/influence-of-thrombolysis-on-the-safety-and-efficacy-of-blocking-platelet-adhesion-or-secretory-activity-in-acute-ischemic-stroke-in-mice
#6
Michael K Schuhmann, Peter Kraft, Michael Bieber, Axel Haarmann, György A Homola, Mirko Pham, Bernhard Nieswandt, Guido Stoll
In acute ischemic stroke (AIS), there is an alarming discrepancy between recanalization rates of up to 70% by combined recombinant tissue-type plasminogen activator (rt-PA) therapy and mechanical thrombectomy, and no clinical benefit in at least every second stroke patient. This is partly due to ischemia/reperfusion (I/R) injury. In a translational approach, we used mice lacking dense- (Unc13d -/- ) or α-granules (Nbeal2 -/- ) and mice after blocking of platelet glycoprotein receptor (GP) Ib conferring protection from I/R injury...
January 10, 2018: Translational Stroke Research
https://www.readbyqxmd.com/read/29322232/mechanical-thrombectomy-using-the-new-solitaire%C3%A2-platinum-stent-retriever-reperfusion-results-complication-rates-and-early-neurological-outcome
#7
Johannes Pfaff, Stefan Rohde, Tobias Engelhorn, Arnd Doerfler, Martin Bendszus, Markus Alfred Möhlenbruch
BACKGROUND AND PURPOSE: The application of radiopaque markers to the Solitaire™ stent-retriever for better visibility during mechanical thrombectomy (MT) has the potential to alter the well-known characteristics of the device; however, it is uncertain whether this adjustment influences efficacy or safety of the enhanced stent-retriever. METHODS: Retrospective analysis of stroke databases of three comprehensive stroke centers. Our investigation was focused on technical and angiographic parameters, including procedure times, reperfusion results (thrombolysis in cerebral infarction, TICI), periprocedural complications and favorable early neurological recovery at discharge (modified Rankin scale ≤2 or National Institutes of Health Stroke Scale, NIHSS = 0 or ∆NIHSS ≥ 10), from consecutive patients with acute anterior circulation ischemic stroke treated with a Solitaire™ Platinum stent-retriever between October 2016 and March 2017...
January 10, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29321338/improving-access-to-thrombolysis-and-inhospital-management-times-in-ischemic-stroke-a-stepped-wedge-randomized-trial
#8
Julie Haesebaert, Norbert Nighoghossian, Catherine Mercier, Anne Termoz, Sylvie Porthault, Laurent Derex, Pierre-Yves Gueugniaud, Estelle Bravant, Muriel Rabilloud, Anne-Marie Schott
BACKGROUND AND PURPOSE: A suboptimal number of ischemic stroke patients eligible for thrombolysis actually receive it, partly because of extended inhospital delays. We developed a comprehensive program designed for emergency unit staff and evaluated its effectiveness for reducing intrahospital times and improving access to thrombolysis. METHODS: We conducted a randomized stepped-wedge controlled trial in 18 emergency unit. The sequentially implemented training intervention, targeting emergency physicians and nurses, was based on specifically designed videos and interactive simulation workshops on intrahospital management optimization...
January 10, 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29320558/thrombolysis-in-stroke-patients-comparability-of-point-of-care-versus-central-laboratory-international-normalized-ratio
#9
Ramona C Dolscheid-Pommerich, Sarah Dolscheid, Lars Eichhorn, Birgit Stoffel-Wagner, Ingo Graeff
BACKGROUND: In acute stroke patients, thrombolysis is one gold standard therapy option within the first four hours after the ischemic event. A contraindication for thrombolysis is an International Normalized Ratio (INR) value >1.7. Since time is brain, rapid and reliable INR results are fundamental. Aim was to compare INR values determined by central laboratory (CL) analyzer and Point-of-Care Testing(POCT)-device and to evaluate the quality of POCT performance in cases of potential therapeutic thrombolysis at a certified stroke unit...
2018: PloS One
https://www.readbyqxmd.com/read/29317364/early-decompressive-hemicraniectomy-for-malignant-middle-cerebral-artery-infarction-in-asian-patients-a-single-centre-study
#10
Prakash Paliwal, Farasat Kazmi, Hock Luen Teoh, Leonard Ll Yeo, Raymond Cs Seet, Tseng Tsai Yeo, Lwin Sein, Ning Chou, Thomas Tch, Bernard Pl Chan, Vijay K Sharma
INTRODUCTION: Early Decompression craniectomy(within 48-hours of stroke-onset) in acute and malignant middle cerebral artery(MCA) ischemic stroke(IS) reduces mortality and increases the proportion of patients with favourable functional outcome. Various cultural and social issues anong Asians lead to some differences in clinical practice specially when surgical interventions are involved. Accordingly decompressive craniectomy in Asian stroke patients is often delayed. MATERIALS & METHODS: Data for all acute IS patients hospitalized to our center were entered into a prospectively maintained registry...
January 6, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29314208/pretreatment-lesional-volume-impacts-clinical-outcome-and-thrombectomy-efficacy
#11
Yu Xie, Catherine Oppenheim, Francis Guillemin, Vincent Gautheron, Benjamin Gory, Hélène Raoult, Sébastien Soize, Jacques Felblinger, Gabriela Hossu, Serge Bracard
OBJECTIVE: We aimed to characterize the association between pretreatment lesional volume measured on diffusion-weighted images and functional outcome, and estimate the impact on thrombectomy efficacy for ischemic stroke with anterior proximal intracranial arterial occlusion. METHODS: Anterior circulation ischemic stroke patients who had pretreatment diffusion-weighted imaging in the THRACE study were included. Lesional volume was semi-automatically segmented. Logistic regression was applied to model clinical outcome as a function of lesional volume...
January 3, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29313576/pharmacological-reperfusion-therapy-with-tenecteplase-in-7-668-indian-patients-with-st-elevation-myocardial-infarction-a-real-world-indian-experience
#12
S S Iyengar, Tiny Nair, Jagdish Hiremath, Anjan Lal Dutta, Uday Jadhav, V K Katyal, Dayanand Kumbla, Immaneni Sathyamurthy, R K Jain, M Srinivasan, Prasant Kr Sahoo
Objective: This real-world, observational, prescription event monitoring study was conducted to evaluate safety and efficacy of indigenous tenecteplase (TNK-tPA) in Indian patients presenting with ST elevation myocardial infarction (STEMI). Methods: This is a multi-centric, observational, prescription event monitoring study. Data was collected for 7,668 patients from 1,307 investigator sites across India from January 2011 to February 2016. Results: Overall, 76...
September 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29313057/regional-differences-in-thrombectomy-rates-secondary-use-of-billing-codes-in-the-miracum-medical-informatics-for-research-and-care-in-university-medicine-consortium
#13
Christian Haverkamp, Thomas Ganslandt, Petar Horki, Martin Boeker, Arnd Dörfler, Stefan Schwab, Joachim Berkefeld, Waltraud Pfeilschifter, Wolf-Dirk Niesen, Karl Egger, Manfred Kaps, Marc A Brockmann, Eva Neumaier-Probst, Kristina Szabo, Martin Skalej, Siegfried Bien, Christoph Best, Hans-Ulrich Prokosch, Horst Urbach
BACKGROUND AND PURPOSE: Mechanical thrombectomy, in addition to intravenous (i.v.) thrombolysis is recommended for treatment of acute stroke in patients with large vessel occlusions (LVO) in the anterior circulation up to 6 h after symptom onset. We compared thrombectomy rates of eight university hospitals of the MIRACUM consortium to analyze the implementation of this guideline in clinical routine. METHODS: Anonymized billing data in a standardized format were loaded into a local i2b2 data warehouse by applying already existing extract, transform and load (ETL) routines...
January 8, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29311264/starting-sich-nomogram-to-predict-symptomatic-intracerebral-hemorrhage-after-intravenous-thrombolysis-for-stroke
#14
Manuel Cappellari, Gianni Turcato, Stefano Forlivesi, Cecilia Zivelonghi, Paolo Bovi, Bruno Bonetti, Danilo Toni
BACKGROUND AND PURPOSE: Symptomatic intracerebral hemorrhage (sICH) is a rare but the most feared complication of intravenous thrombolysis for ischemic stroke. We aimed to develop and validate a nomogram for individualized prediction of sICH in intravenous thrombolysis-treated stroke patients included in the multicenter SITS-ISTR (Safe Implementation of Thrombolysis in Stroke-International Stroke Thrombolysis Register). METHODS: All patients registered in the SITS-ISTR by 179 Italian centers between May 2001 and March 2016 were originally included...
January 8, 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29299869/combination-therapy-with-low-dose-ivig-and-a-c1-esterase-inhibitor-ameliorates-brain-damage-and-functional-deficits-in-experimental-ischemic-stroke
#15
Xinzhi Chen, Thiruma V Arumugam, Yi-Lin Cheng, Jong-Hwan Lee, Srinivasulu Chigurupati, Mark P Mattson, Milan Basta
Acute ischemic stroke causes a high rate of deaths and permanent neurological deficits in survivors. Current interventional treatment, in the form of enzymatic thrombolysis, benefits only a small percentage of patients. Brain ischemia triggers mobilization of innate immunity, specifically the complement system and Toll-like receptors (TLRs), ultimately leading to an exaggerated inflammatory response. Here we demonstrate that intravenous immunoglobulin (IVIG), a scavenger of potentially harmful complement fragments, and C1-esterase inhibitor (C1-INH), an inhibitor of complement activation, exert a beneficial effect on the outcome of experimental brain ischemia (I) and reperfusion (R) injury induced by transient occlusion of middle cerebral artery in mice...
January 3, 2018: Neuromolecular Medicine
https://www.readbyqxmd.com/read/29298854/racial-disparities-in-refusal-of-stroke-thrombolysis-in-chicago
#16
Scott J Mendelson, Neelum T Aggarwal, Christopher Richards, Kathleen O'Neill, Jane L Holl, Shyam Prabhakaran
OBJECTIVE: To evaluate race differences in tissue plasminogen activator (tPA) refusal among eligible patients with acute ischemic stroke (AIS) in Chicago. METHODS: Using the Get With The Guidelines-Stroke registry data from 15 primary stroke centers between January 2013 and June 2015, we performed a retrospective analysis of patients with AIS presenting to the emergency department within 4.5 hours from symptom onset. Patient or proxy refusal was captured as a reason for nonadministration of tPA to eligible patients in the registry...
January 3, 2018: Neurology
https://www.readbyqxmd.com/read/29296999/safety-and-efficacy-of-a-3-dimensional-stent-retriever-with-aspiration-based-thrombectomy-vs-aspiration-based-thrombectomy-alone-in-acute-ischemic-stroke-intervention-a-randomized-clinical-trial
#17
Raul G Nogueira, Donald Frei, Jawad F Kirmani, Osama Zaidat, Demetrius Lopes, Aquilla S Turk, Donald Heck, Brian Mason, Diogo C Haussen, Elad I Levy, Siddhart Mehta, Marc Lazzaro, Michael Chen, Arnd Dörfler, Albert J Yoo, Colin P Derdeyn, Lee Schwamm, David Langer, Adnan Siddiqui
Importance: The treatment effects of individual mechanical thrombectomy devices in large-vessel acute ischemic stroke (AIS) remain unclear. Objective: To determine whether the novel 3-dimensional (3-D) stent retriever used in conjunction with an aspiration-based mechanical thrombectomy device (Penumbra System; Penumbra) is noninferior to aspiration-based thrombectomy alone in AIS. Design, Setting, and Participants: This randomized, noninferiority clinical trial enrolled patients at 25 North American centers from May 19, 2012, through November 19, 2015, with follow-up for 90 days...
January 2, 2018: JAMA Neurology
https://www.readbyqxmd.com/read/29296623/clarion-call-for-histopathological-clot-analysis-in-cryptogenic-ischemic-stroke-implications-for-diagnosis-and-treatment
#18
Sonu Bhaskar, Dennis Cordato, Cecilia Cappelen-Smith, Andrew Cheung, David Ledingham, David Celermajer, Christopher Levi
Diagnosis, treatment, and secondary management of cryptogenic stroke patients pose a formidable challenge. The scenario is further complicated in patients with native and prosthetic valvular heart disease. We present a case study of a 36-year-old man who received intravenous thrombolysis (IV-tPA) and endovascular thrombectomy (EVT) for presumed "cryptogenic" complete middle cerebral artery infarction who made a surprisingly excellent clinical recovery despite poor baseline and postintervention neuroimaging...
December 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/29290532/thrombolysis-alert-in-hassan-ii-university-teaching-hospital-of-fez-morocco-a-prospective-study-of-2-years
#19
Moussa Toudou Daouda, Siham Bouchal, Naima Chtaou, Aouatef Midaoui, Zouahyr Souirti, Faouzi Belahsen
BACKGROUND: Thrombolysis alert (TA) is a procedure triggered every time a patient consults for sudden focal neurological deficit within 4.5 hours. OBJECTIVE: We aimed to determine firstly the etiological profile of TA and secondly to evaluate the delays in the management not only of thrombolyzed patients but also of nonthrombolyzed patients to determine the intrahospital delays to optimize. METHODS: Patients aged over 18 years who consulted for sudden focal neurological deficit within 4...
December 29, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29288194/increased-middle-cerebral-artery-mean-blood-flow-velocity-index-after-stroke-thrombectomy-indicates-increased-risk-for-intracranial-hemorrhage
#20
Markus Kneihsl, Kurt Niederkorn, Hannes Deutschmann, Christian Enzinger, Birgit Poltrum, Renate Fischer, Daniela Thaler, Christina Hermetter, Gerit Wünsch, Franz Fazekas, Thomas Gattringer
BACKGROUND AND PURPOSE: Cerebral hyperperfusion has been related to the risk of intracranial hemorrhage (ICH) in stroke patients after vessel recanalization therapy. We hypothesized that after successful mechanical thrombectomy for acute anterior circulation stroke, hemodynamics detectable by transcranial Duplex (TCD) sonography would vary, and that increased blood flow velocities would be associated with ICH. METHODS: We retrospectively identified all ischemic stroke patients with successful endovascular recanalization for anterior circulation vessel occlusion (Thrombolysis in Cerebral Infarction 2b-3) between 2010 and 2017...
December 28, 2017: Journal of Neurointerventional Surgery
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