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ESTUDIOS


25 julio 2019

Endovascular Treatment of Acute Stroke

Raul G. Nogueira and Marc Ribó

Endovascular therapy (ET) for acute ischemic stroke is now broadly recognized as one of the most powerful treatments in our field. Nonetheless, only a highly selected proportion of large vessel occlusion stroke (LVOS) patients are presently being offered treatment. Herein, we discuss some of the scientific and philosophical aspects surrounding the care of LVOS and provide a critical view of the current clinical practice centering our discussions on the concept of personalized medicine.

22 julio 2019

Thrombolytic Therapy for Acute Ischemic Stroke

Patrick D. Lyden

A 35-year-old woman is found paralyzed in a bathroom. She had been shopping with her mother for bridesmaids’ gifts. She had suffered a severe migraine during the previous 3 weeks and had been evaluated at an outside hospital. For the migraine, she had undergone noncontrast CT head scan and lumbar puncture with normal results. She had been treated with enough narcotics to induce nausea, vomiting, and dehydration but eventually was discharged without headache one week before presentation. The day of admission was her first trip outside the house. After shopping a while, she complained to her mother of a strange feeling and went into the ladies’ room. When she did not return, the mother investigated and found her awake but confused and paralyzed on the left side. Paramedics were summoned who surmised she could be having a stroke and contacted the closest medical center. Upon arrival at the outlying hospital, a neurologist was summoned.

17 julio 2019

Radial Artery Catheterization for Neuroendovascular Procedures

Omaditya Khanna, Ahmad Sweid, Nikolaos Mouchtouris, Kavya Shivashankar, Vivan Xu, Lohit Velagapudi, Geoffrey Stricsek, Abdelaziz Amllay, Pavlos Texakalidis, M. Reid Gooch, Stavropoula Tjoumakaris, Robert H. Rosenwasser and Pascal M. Jabbour

Abstract Background and Purpose— Radial artery catheterization is an alternate route of access that has started to gain more widespread use for neuroendovascular procedures, and there have been few studies that describe its safety and efficacy. We present our institution’s experience in performing neuroendovascular interventions via a transradial approach, with excellent clinical outcomes and patient satisfaction measures.

10 julio 2019

Thrombectomy Results in Reduced Hospital Stay, More Home-Time, and More Favorable Living Situations in DEFUSE 3

William J. Tate, Laura C. Polding, Stephanie Kemp, Michael Mlynash, Jeremy J. Heit, Michael P. Marks, Gregory W. Albers and Maarten G. Lansberg

Abstract Background and Purpose— The DEFUSE 3 trial (Endovascular Therapy Following Imaging Evaluation for Ischemic Stroke) demonstrated that endovascular thrombectomy in the 6- to 16-hour time window improves functional outcomes of patients with evidence of salvageable tissue on baseline computed tomography or magnetic resonance imaging. The purpose of this study is to assess the effect of endovascular therapy on length of hospital stay, home-time during the first 3 months poststroke, and living situation poststroke in DEFUSE 3.

06 agosto 2019

Stroke Care and Application of Thrombolysis in Ibero-America

María Alonso de Leciñana, Michael V. Mazya, Nikolaos Kostulas, Oscar H. Del Brutto, Carlos Abanto, Ayrton R. Massaro, Mario de Bastos, Sheila Martins, Sebastian F. Ameriso, Fernando Gongora-Rivera, Claudio Sacks, Arnold Hoppe, Patricio Abad, Gloria Meza, Antonio Arauz-Gongora, Nils Wahlgren, Exuperio Díez-Tejedor and on behalf of the SITS-SIECV Investigators

Abstract Background and Purpose— Standardized registries may provide valuable data to further improve stroke care. Our aim was to obtain updated information about characteristics of stroke patients and management of stroke across the Ibero-American countries, using a common in-hospital registry (Safe Implementation of Treatments in Stroke–Sociedad Iberoamericana de Enfermedades Cerebrovasculares) as a basis for further quality improvement.

24 julio 2019

Functional Outcome Following Stroke Thrombectomy in Clinical Practice

Frank A. Wollenweber, Steffen Tiedt, Anna Alegiani, Burkhard Alber, Christopher Bangard, Jörg Berrouschot, Felix J. Bode, Tobias Boeckh-Behrens, Georg Bohner, Albrecht Bormann, Michael Braun, Franziska Dorn, Bernd Eckert, Fabian Flottmann, Gerhard F. Hamann, Karl-Heinz Henn, Moriz Herzberg, Andreas Kastrup, Lars Kellert, Christoffer Kraemer, Lars Krause, Manuel Lehm, Jan Liman, Stephan Lowens, Anastasios Mpotsaris, Panagiotis Papanagiotou, Martina Petersen, Gabor C. Petzold, Waltraud Pfeilschifter, Marios-Nikos Psychogios, Arno Reich, Regina von Rennenberg, Joachim Röther, Jan-Hendrik Schäfer, Eberhard Siebert, Andreas Siedow, Laszlo Solymosi, Sven Thonke, Marlies Wagner, Silke Wunderlich, Sarah Zweynert, Christian H. Nolte, Christian Gerloff, Götz Thomalla, Martin Dichgans and Jens Fiehler

Abstract Background and Purpose— Endovascular treatment for large vessel occlusion in ischemic stroke has proven to be effective in large clinical trials. We aimed to provide real-world estimates of endovascular treatment reperfusion rates and functional outcome on a countrywide scale.

12 agosto 2019

Efficacy and Safety of Rivaroxaban Versus Aspirin in Embolic Stroke of Undetermined Source and Carotid Atherosclerosis

George Ntaios, Balakumar Swaminathan, Scott D. Berkowitz, Rubens José Gagliardi, Wilfried Lang, James E. Siegler, Pablo Lavados, Hardi Mundl, Natan Bornstein, Elena Meseguer, Pierre Amarenco, Brett Cucchiara, Pol Camps-Renom, Konstantinos Makaritsis, Eleni Korompoki, Vasileios Papavasileiou, Joan Marti-Fabregas, Haralampos Milionis, Konstantinos Vemmos, Stuart J. Connolly, Robert G. Hart and on behalf of the NAVIGATE ESUS Investigators

Abstract Background and Purpose— The sources of emboli in patients with embolic stroke of undetermined source (ESUS) are multiple and may not respond uniformly to anticoagulation. In this exploratory subgroup analysis of patients with carotid atherosclerosis in the NAVIGATE (New Approach Rivaroxaban Inhibition of Factor Xa in a Global Trial Versus ASA to Prevent Embolism)-ESUS trial, we assessed whether the treatment effect in this subgroup is consistent with the overall trial population and investigated the association of carotid atherosclerosis with recurrent ischemic stroke.

18 julio 2019

Site Experience and Outcomes in the Trevo Acute Ischemic Stroke (TRACK) Multicenter Registry

Raul G. Nogueira, Diogo C. Haussen, Alicia Castonguay, Leticia C. Rebello, Michael Abraham, Ajit Puri, Amer Alshekhlee, Aniel Majjhoo, Hamed Farid, Ira Finch, Joey English, Maxim Mokin, Michael T. Froehler, Mo Kabbani, Muhammad A. Taqi, Nirav Vora, Ramy El Khoury, Randall C. Edgell, Roberta Novakovic, Thanh Nguyen, Vallabh Janardhan, Enrol Veznedaroglu, Shyam Prabhakaran, Ron Budzik, Michael R. Frankel, Brittany L. Nordhaus and Osama O. Zaidat

Abstract Background and Purpose— It remains unclear how experience influences outcomes after the advent of stent retriever technology. We studied the relationship between site experience and outcomes in the Trevo Acute Ischemic Stroke multicenter registry.

18 julio 2019

Blood Pressure and Outcome After Mechanical Thrombectomy With Successful Revascularization

Mohammad Anadani, Mohamad Y. Orabi, Ali Alawieh, Nitin Goyal, Andrei V. Alexandrov, Nils Petersen, Sreeja Kodali, Ilko L. Maier, Marios-Nikos Psychogios, Christa B. Swisher, Ovais Inamullah, Akash P. Kansagra, James A. Giles, Stacey Q. Wolfe, Jasmeet Singh, Benjamin Gory, Pierre De Marini, Peter Kan, Fábio A. Nascimento, Luis Idrovo Freire, Abhi Pandhi, Hunter Mitchell, Joon-Tae Kim, Kyle M. Fargen, Sami Al Kasab, Jan Liman, Shareena Rahman, Michelle Allen, Sébastien Richard and Alejandro M. Spiotta

Abstract Background and Purpose— Successful reperfusion can be achieved in more than two-thirds of patients treated with mechanical thrombectomy. Therefore, it is important to understand the effect of blood pressure (BP) on clinical outcomes after successful reperfusion. In this study, we investigated the relationship between BP on admission and during the first 24 hours after successful reperfusion with clinical outcomes.

22 julio 2019

Factors Associated With the Decision-Making on Endovascular Thrombectomy for the Management of Acute Ischemic Stroke

Gustavo Saposnik, Bijoy K. Menon, Nima Kashani, Alexis T. Wilson, Shinichi Yoshimura, Bruce C.V. Campbell, Blaise Baxter, Alejandro Rabinstein, Francis Turjman, Urs Fischer, Johanna M. Ospel, Peter J. Mitchell, Pillai N. Sylaja, Mathew Cherian, Byungmoon Kim, Ji-Hoe Heo, Anna Podlasek, Mohammed Almekhlafi, Mona M. Foss, Andrew M. Demchuk, Michael D. Hill and Mayank Goyal

Abstract Background and Purpose— Little is known about the real-life factors that clinicians use in selection of patients that would receive endovascular treatment (EVT) in the real world. We sought to determine patient, practitioner, and health system factors associated with therapeutic decisions around endovascular treatment.

17 julio 2019

Magnitude of Benefit of Combined Endovascular Thrombectomy and Intravenous Fibrinolysis in Large Vessel Occlusion Ischemic Stroke

Dashiell F. Young-Saver, Jeffrey Gornbein, Sidney Starkman and Jeffrey L. Saver

Abstract Background and Purpose— Quantifying the benefit magnitude of combined endovascular thrombectomy (EVT) and intravenous thrombolysis (IVT) versus nonreperfusion care in patients with acute ischemic stroke caused by large vessel occlusion would aid organization of regional stroke care systems

01 agosto 2019

Racial and Ethnic Disparities in the Utilization of Thrombectomy for Acute Stroke

Lorenzo Rinaldo, Alejandro A. Rabinstein, Harry Cloft, John M. Knudsen, Leonardo Rangel Castilla and Waleed Brinjikji

Abstract Background and Purpose— Racial and ethnic disparities in the access to mechanical thrombectomy (MT) for treatment of acute ischemic stroke (AIS) secondary to large vessel occlusion have been previously described. The effect of recent randomized trials validating MT as an effective therapy for AIS secondary to large vessel occlusion on such disparities has not been investigated.

15 agosto 2019

Sex Differences in Outcome After Endovascular Stroke Therapy for Acute Ischemic Stroke

Sunil A. Sheth, Songmi Lee, Steven J. Warach, Jan Gralla, Reza Jahan, Mayank Goyal, Raul G. Nogueira, Osama O. Zaidat, Vitor M. Pereira, Adnan Siddiqui, Helmi Lutsep, David S. Liebeskind, Louise D. McCullough and Jeffrey L. Saver

Abstract Background and Purpose— We determined the effect of sex on outcome after endovascular stroke thrombectomy in acute ischemic stroke, including lifelong disability outcomes.

15 agosto 2019

Does Sex Modify the Effect of Endovascular Treatment for Ischemic Stroke?

Vicky Chalos, Inger R. de Ridder, Hester F. Lingsma, Scott Brown, Robert J. van Oostenbrugge, Mayank Goyal, Bruce C.V. Campbell, Keith W. Muir, Francis Guillemin, Serge Bracard, Philip White, Antoni Dávalos, Tudor G. Jovin, Michael D. Hill, Peter J. Mitchell, Andrew M. Demchuk, Jeffrey L. Saver, Wim H. van Zwam, Diederik W.J. Dippel and on behalf of the HERMES Collaborators

Abstract Background and Purpose— Previous studies have reported less favorable outcome and less effect of endovascular treatment (EVT) after ischemic stroke in women than in men. Our aim was to study the influence of sex on outcome and on the effect of EVT for ischemic stroke in recent randomized trials on EVT.

01 agosto 2019

Exploring Reperfusion Following Endovascular Thrombectomy

Jayme C. Kosior, Brian Buck, Robert Wannamaker, Mahesh Kate, Natalia A. Liapounova, Jeremy L. Rempel and Kenneth Butcher

Abstract Background and Purpose— Cerebral perfusion in acute ischemic stroke patients is often assessed before endovascular thrombectomy (EVT), but rarely after. Perfusion data obtained following EVT may provide additional prognostic information. We developed a tool to quantitatively derive perfusion measurements from digital subtraction angiography (DSA) data and examined perfusion in patients following EVT.

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