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ABSTRACT


STROKE. Stroke Treatment Academic Industry Roundtable. The Next Generation of Endovascular Trials

Tudor G. Jovin, Gregory W. Albers, David S. Liebeskind, for the STAIR IX Consortium

Background and Purpose: The STAIR (Stroke Treatment Academic Industry Roundtable) meeting aims to advance acute stroke therapy development through collaboration between academia, industry, and regulatory institutions. In pursuit of this goal and building on recently available level I evidence of benefit from endovascular therapy (ET) in large vessel occlusion stroke, STAIR IX consensus recommendations were developed that outline priorities for future research in ET.

STROKE. Effects of Exercise Therapy on Balance Capacity in Chronic Stroke. Systematic Review and Meta-Analysis

Hanneke J.R. van Duijnhoven, Anita Heeren, Marlijn A.M. Peters, Janne M. Veerbeek, Gert Kwakkel, Alexander C.H. Geurts, Vivian Weerdesteyn

Background and Purpose: The purpose of this systematic review and meta-analysis was to investigate the effects of exercise training on balance capacity in people in the chronic phase after stroke. Furthermore, we aimed to identify which training regimen was most effective.

STROKE. ASPECTS (Alberta Stroke Program Early CT Score) Assessment of the Perfusion–Diffusion Mismatch

Louis Lassalle, Guillaume Turc, Marie Tisserand, Sylvain Charron, Pauline Roca, Stephanie Lion, Laurence Legrand, Myriam Edjlali, Olivier Naggara, Jean-François Meder, Jean-Louis Mas, Jean-Claude Baron, Catherine Oppenheim

Background and Purpose: Rapid and reliable assessment of the perfusion-weighted imaging (PWI)/diffusion-weighted imaging (DWI) mismatch is required to promote its wider application in both acute stroke clinical routine and trials. We tested whether an evaluation based on the Alberta Stroke Program Early CT Score (ASPECTS) reliably identifies the PWI/DWI mismatch.

STROKE. Vascular Tortuosity May Be Associated With Cervical Artery Dissection

Bum Joon Kim, Ewha Yang, Na-Young Kim, Mi-Jung Kim, Dong-Wha Kang, Sun U. Kwon, Jong S. Kim

Background and Purpose: Dissection is an increasingly recognized cause of ischemic stroke, which occurs spontaneously or after trauma, in relatively young patients. We hypothesized that there might be a predisposing factor weakening the vascular wall and that arterial tortuosity might be higher in patients with dissection.

STROKE. Blood Flow Into Basilar Tip Aneurysms. A Predictor for Recanalization After Coil Embolization

Shin-ichiro Sugiyama, Kuniyasu Niizuma, Kenichi Sato, Sherif Rashad, Misaki Kohama, Hidenori Endo, Toshiki Endo, Yasushi Matsumoto, Makoto Ohta, Teiji Tominaga

Background and Purpose: Hemodynamic forces may play a role in the recanalization of coiled aneurysms. The purpose of this study was to investigate the influence of presurgical hemodynamics on the efficacy of coil embolization for basilar tip aneurysms.

STROKE. Neurologic Examination at 24 to 48 Hours Predicts Functional Outcomes in Basilar Artery Occlusion Stroke

Srikant Rangaraju, Tudor G. Jovin, Michael Frankel, Wouter J. Schonewille, Ale Algra, L. Jaap Kappelle, Raul G. Nogueira and on behalf of the BASICS Study Group

Background and Purpose: Accurate long-term outcome prognostication in basilar artery occlusion strokes may guide clinical management in the subacute stage. We determine the prognostic value of the follow-up neurological examination using the National Institutes of Health stroke scale (NIHSS) and identify 24- to 48-hour NIHSS risk categories in basilar artery occlusion patients.

STROKE. Remote Lower White Matter Integrity Increases the Risk of Long-Term Cognitive Impairment After Ischemic Stroke in Young Adults

Pauline Schaapsmeerders, Anil M. Tuladhar, Renate M. Arntz, Sieske Franssen, Noortje A.M. Maaijwee, Loes C.A. Rutten-Jacobs, Hennie C. Schoonderwaldt, Lucille D.A. Dorresteijn, Ewoud J. van Dijk, Roy P.C. Kessels, Frank-Erik de Leeuw

Background and Purpose: Poststroke cognitive impairment occurs frequently in young patients with ischemic stroke (18 through 50 years of age). Accumulating data suggest that stroke is associated with lower white matter integrity remote from the stroke impact area, which might explain why some patients have good long-term cognitive outcome and others do not. Given the life expectancy of decades in young patients, we therefore investigated remote white matter in relation to long-term cognitive function.

STROKE. Increased Frontal Lobe Activation After Aneurysmal Subarachnoid Hemorrhage

Leodante da Costa, Benjamin T. Dunkley, Allison Bethune, Amanda Robertson, Anne Keller, Elizabeth W. Pang

Background and Purpose: Neurocognitive deficits are common among survivors of aneurysmal subarachnoid hemorrhage, even among those with good outcomes and no structural lesions. This study aims to probe the neurophysiological underpinnings of cognitive dysfunction among patients with ruptured intracranial aneurysms using magnetoencephalography (MEG).

THE LANCET. Neurology. Safety and efficacy of minimally invasive surgery plus alteplase in intracerebral haemorrhage evacuation (MISTIE): a randomised, controlled, open-label, phase 2 trial

Prof Daniel F Hanley, MD, Richard E Thompson, PhD, John Muschelli, PhD, Michael Rosenblum, PhD, Nichol McBee, MPH, Karen Lane, CMA, Amanda J Bistran-Hall, BS, Steven W Mayo, PD, Penelope Keyl, PhD, Dheeraj Gandhi, MD, Tim C Morgan, MPH, Natalie Ullman, MPH, W Andrew Mould, BA, J Ricardo Carhuapoma, MD, Carlos Kase, MD, Wendy Ziai, MD, Carol B Thompson, MS, Gayane Yenokyan, PhD, Emily Huang, PhD, William C Broaddus, MD, R Scott Graham, MD, E Francois Aldrich, MD, Robert Dodd, MD, Cristanne Wijman, MD*, Jean-Louis Caron, MD, Judy Huang, MD, Paul Camarata, MD, A David Mendelow, FRCS[SN], Barbara Gregson, PhD, Scott Janis, PhD, Paul Vespa, MD, Neil Martin, MD, Prof Issam Awad, MD†, Prof Mario Zuccarello, MD† for the MISTIE Investigators‡ †Contributed equally

Background: Craniotomy, according to the results from trials, does not improve functional outcome after intracerebral haemorrhage. Whether minimally invasive catheter evacuation followed by thrombolysis for clot removal is safe and can achieve a good functional outcome is not known. We investigated the safety and efficacy of alteplase, a recombinant tissue plasminogen activator, in combination with minimally invasive surgery (MIS) in patients with intracerebral haemorrhage.

THE LANCET. Neurology. Validation and comparison of imaging-based scores for prediction of early stroke risk after transient ischaemic attack: a pooled analysis of individual-patient data from cohort studies

Prof Peter J Kelly, MD, Gregory W Albers, MD, Anastasios Chatzikonstantinou, MD, Gian Marco De Marchis, MD, Julia Ferrari, MD, Paul George, MD, Mira Katan, MD, Michael Knoflach, MD, Prof Jong S Kim, MD, Linxin Li, DPhil, Eun-Jae Lee, MD, Prof Jean-Marc Olivot, MD, Prof Francisco Purroy, PhD, Nicolas Raposo, MD, Prof Peter M Rothwell, FMedSci, Prof Vijay K Sharma, MD, Bo Song, MD, Prof Georgios Tsivgoulis, MD, Prof Cathal Walsh, PhD, Prof Yuming Xu, MD, Aine Merwick, PhD

Background: Identification of patients at highest risk of early stroke after transient ischaemic attack has been improved with imaging based scores. We aimed to compare the validity and prognostic utility of imaging-based stroke risk scores in patients after transient ischaemic attack.

AMERICAN JOURNAL OF NEURORADIOLOGY. Diagnostic Performance of Routine Brain MRI Sequences for Dural Venous Sinus Thrombosis

D. Patel, M. Machnowska, S. Symons, R. Yeung, A.J. Fox, R.I. Aviv and P. Jabehdar Maralani

BACKGROUND AND PURPOSE: Signs suggestive of unexpected dural venous sinus thrombosis are detectable on routine MR imaging studies without MRV. We assessed performance characteristics and interrater reliability of routine MR imaging for the diagnosis of dural venous sinus thrombosis, focusing on the superior sagittal, transverse, and sigmoid sinuses.

AMERICAN JOURNAL OF NEURORADIOLOGY. Comparison of CTA- and DSA-Based Collateral Flow Assessment in Patients with Anterior Circulation Stroke

I.G.H. Jansen, O.A. Berkhemer, A.J. Yoo, J.A. Vos, G.J. Lycklama à Nijeholt, M.E.S. Sprengers, W.H. van Zwam, W.J. Schonewille, J. Boiten, M.A.A. van Walderveen, R.J. van Oostenbrugge, A. van der Lugt, H.A. Marquering and C.B.L.M. Majoie on behalf of the MR CLEAN investigators (www.mrclean-trial.org)

BACKGROUND AND PURPOSE: Collateral flow is associated with clinical outcome after acute ischemic stroke and may serve as a parameter for patient selection for intra-arterial therapy. In clinical trials, DSA and CTA are 2 imaging modalities commonly used to assess collateral flow. We aimed to determine the agreement between collateral flow assessment on CTA and DSA and their respective associations with clinical outcome.

AMERICAN JOURNAL OF NEURORADIOLOGY. Clinical Significance of the Champagne Bottle Neck Sign in the Extracranial Carotid Arteries of Patients with Moyamoya Disease

C. Yasuda, S. Arakawa, T. Shimogawa, Y. Kanazawa, T. Sayama, S. Haga and T. Morioka

BACKGROUND AND PURPOSE: The champagne bottle neck sign represents a rapid reduction in the extracranial ICA diameters and is a characteristic feature of Moyamoya disease. However, the clinical significance of the champagne bottle neck sign is unclear. We investigated the relationship between the champagne bottle neck sign and the clinical and hemodynamic stages of Moyamoya disease.

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