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ABSTRACT


01 enero 2014

THE LANCET NEUROLOGY. Childhood arterial ischaemic stroke incidence, presenting features, and risk factors: a prospective population-based study

Andrew A Mallick MB BCh a, Vijeya Ganesan MD b, Prof Fenella J Kirkham MD b c, Penny Fallon MBBS d, Tammy Hedderly MBBS e f, Tony McShane MD g, Alasdair P Parker MD h, Evangeline Wassmer MBChB i, Elizabeth Wraige MBBS f, Samir Amin MSc j, Hannah B Edwards MA j, Prof Kate Tilling PhD k, Dr Finbar J O´Callaghan PhD

Background: Arterial ischaemic stroke is an important cause of acquired brain injury in children. Few prospective population-based studies of childhood arterial ischaemic stroke have been undertaken. We aimed to investigate the epidemiology and clinical features of childhood arterial ischaemic stroke in a population-based cohort.

01 enero 2014

THE LANCET NEUROLOGY. Development of the PHASES score for prediction of risk of rupture of intracranial aneurysms: a pooled analysis of six prospective cohort studies

Dr Jacoba P Greving PhD a, Marieke J H Wermer MD b, Prof Robert D Brown MD c, Prof Akio Morita MD d e, Seppo Juvela MD f, Masahiro Yonekura MD g, Toshihiro Ishibashi MD h, Prof James C Torner PhD i, Prof Takeo Nakayama MD j, Prof Gabriël J E Rinkel MD k, Prof Ale Algra MD

Background: The decision of whether to treat incidental intracranial saccular aneurysms is complicated by limitations in current knowledge of their natural history. We combined individual patient data from prospective cohort studies to determine predictors of aneurysm rupture and to construct a risk prediction chart to estimate 5-year aneurysm rupture risk by risk factor status.

01 febrero 2013

THE LANCET NEUROLOGY. A multilevel intervention to increase community hospital use of alteplase for acute stroke (INSTINCT): a cluster-randomised controlled trial

Dr Phillip A Scott MD a b, William J Meurer MD a b c, Shirley M Frederiksen MS a b, Prof John D Kalbfleisch PhD d, Zhenzhen Xu PhD d, Prof Mary N Haan DrPH e f, Robert Silbergleit MD a b, Prof Lewis B Morgenstern MD a b c e, for the INSTINCT Investigators

Background: Use of alteplase improves outcome in some patients with stroke. Several types of barrier frequently prevent its use. We assessed whether a standardised, barrier-assessment, multicomponent intervention could increase alteplase use in community hospitals in Michigan, USA.

01 enero 2013

THE LANCET NEUROLOGY. Transient isolated brainstem symptoms preceding posterior circulation stroke: a population-based study

Nicola LM Paul MRCP a, Michela Simoni MRCP a, Prof Peter M Rothwell FMedSci a, for the Oxford Vascular Study

Background: Transient isolated brainstem symptoms (eg, isolated vertigo, dysarthria, diplopia) are not consistently classified as transient ischaemic attacks (TIAs) and data for prognosis are limited. If some of these transient neurological attacks (TNAs) are due to vertebrobasilar ischaemia, then they should be common during the days and weeks preceding posterior circulation strokes. We aimed to assess the frequency of TNAs before vertebrobasilar ischaemic stroke.

01 marzo 2014

JOURNAL OF VASCULAR SURGERY. Impact of contralateral carotid or vertebral artery occlusion in patients undergoing carotid endarterectomy or carotid artery stenting

Shin-Seok Yang, MD , Young-Wook Kim, MD, PhD , Dong-Ik Kim, MD, PhD , Keon-ha Kim, MD, PhD , Pyoung Jeon, MD, PhD , Gyeong-Moon Kim, MD, PhD , Chin-Sang Chung, MD, PhD , Kwang-Ho Lee, MD, PhD

Objective: To determine the impact of contralateral carotid occlusion (CCO) and/or vertebral artery occlusion (VAO) on the development of early postoperative neurologic complications after carotid endarterectomy (CEA) or carotid artery stenting (CAS).

01 marzo 2014

JOURNAL OF VASCULAR SURGERY. The effect of ballooning following carotid stent deployment on hemodynamic stability

Umair Qazi, MD, MPH , Tammam E. Obeid, MBBS , Ngozi Enwerem, MBBS, MPH , Eric Schneider, PhD , Jessica R. White, BS , Julie A. Freischlag, MD , Bruce A. Perler, MD , Mahmoud B. Malas, MD, MHS

Objective: While patient eligibility for carotid artery stenting (CAS) is well established, the intraoperative technique remains widely varied. The decision to perform poststent ballooning (PSB) is operator-dependent and often influenced by the interpretation of poststent angiography. While visually creating a greater luminal diameter, it is unclear whether PSB has immediate risks or long-term benefits. The purpose of this report is to determine whether PSB has any effects on periprocedural hemodynamic stability.

01 febrero 2014

JOURNAL OF ENDOVASCULAR THERAPY. Carotid Artery Stenting in Patients With Left ICA Stenosis and Bovine Aortic Arch: A Single-Center Experience in 60 Consecutive Patients Treated Via the Right Radial or Brachial Approach

Piero Montorsi , MD; Stefano Galli , MD; Paolo M. Ravagnani , MD; Daniela Trabattoni , MD; Franco Fabbiocchi , MD; Alessandro Lualdi , MD; Giovanni Ballerini , MD; Daniele Andreini , MD; Gianluca Pontone , MD; Luigi Caputi , MD; and Antonio L. Bartorelli , MD

Purpose: To assess the safety and efficacy of carotid artery stenting (CAS) of the left internal carotid artery (LICA) from a right radial/brachial approach in patients with bovine aortic arch.

26 julio 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Experimental Evaluation of Immediate Recanalization Effect and Recanalization Efficacy of a New Thrombus Retriever for Acute Stroke Treatment In Vivo

P. Mordasini, C. Brekenfeld, J.V. Byrne, U. Fischer, M. Arnold, S. Jung, G. Schroth and J. Gralla

Background and Purpose: Currently, several new stent retriever devices for acute stroke treatment are under development and early clinical evaluation. Preclinical testing under standardized conditions is an important first step to evaluate the technical performance and potential of these devices. The aim of this study was to evaluate the immediate recanalization effect, recanalization efficacy, thrombus-device interaction, and safety of a new stent retriever intended for thrombectomy in patients with acute stroke.

14 junio 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Factors Influencing Clinically Meaningful Recanalization after IV-rtPA in Acute Ischemic Stroke

A. Murphy, S.P. Symons, J. Hopyan and R.I. Aviv

Background and Purpose: Recanalization may not result in better clinical outcomes after ischemic stroke. We determined the incidence and significant predictors of CMR, defined as CT angiographic recanalization and a good clinical outcome, after IV-rtPA in acute ischemic stroke. A CMR score was devised and tested.

26 julio 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. A Meta-Analysis of Observational Intra-Arterial Stroke Therapy Studies Using the Merci Device, Penumbra System, and Retrievable Stents

M.A. Almekhlafi, B.K. Menon, E.A. Freiheit, A.M. Demchuk and M. Goyal

Background and Purpose: The time from arterial puncture to successful recanalization is an important milestone toward timely recanalization. With the significant improvement in recanalization rates by using thrombectomy devices, procedural time to recanalization is becoming a determinant factor in choosing among available devices. We aimed to assess the impact of time to recanalization on the outcome of intra-arterial stroke therapies.

26 julio 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. The Clinical and Radiographic Importance of Distinguishing Partial from Near-Complete Reperfusion Following Intra-Arterial Stroke Therapy

M.V. Jayaraman, J.A. Grossberg, K.M. Meisel, A. Shaikhouni and B. Silver

Background and Purpose: Reperfusion following intra-arterial stroke therapy is associated with improved clinical outcomes. However, the degree of reperfusion needed to achieve successful outcomes is unknown. The purpose of this analysis was to determine whether the degree of reperfusion has an impact on final infarct volumes and clinical outcomes.

16 agosto 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Intracranial Aneurysm Neck Size Overestimation with 3D Rotational Angiography: The Impact on Intra-Aneurysmal Hemodynamics Simulated with Computational Fluid Dynamics

J.J. Schneiders, H.A. Marquering, L. Antiga, R. van den Berg, E. VanBavel and C.B. Majoie

Background and Purpose: 3DRA is considered the reference standard for the assessment of intracranial aneurysm morphology. However, it has been shown that 3DRA may overestimate neck size compared with 2D DSA. The purpose of this study was to determine the impact of neck size overestimation with 3DRA on intra-aneurysmal hemodynamics.

06 junio 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. Potential for the Use of the Solitaire Stent for Recanalization of Middle Cerebral Artery Occlusion without a Susceptibility Vessel Sign

Y.J. Bae, C. Jung, J.H. Kim, B.S. Choi, E. Kim, M.-K. Han, H.-J. Bae and M.H. Han

Background and Purpose: Absence of the MCA susceptibility vessel sign (negative MCA susceptibility vessel sign) on gradient recalled-echo MR imaging in acute stroke is commonly associated with in situ stenosis and thrombotic occlusion. We evaluated the effectiveness and safety of the Solitaire stent as the first-line device for the recanalization of MCA occlusion with a negative MCA susceptibility vessel sign

18 julio 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. Comparative Effectiveness of Ruptured Cerebral Aneurysm Therapies: Propensity Score Analysis of Clipping versus Coiling

J.S. McDonald, R.J. McDonald, J. Fan, D.F. Kallmes, G. Lanzino and H.J. Cloft

Background and Purpose: The relative merits of treating ruptured aneurysms with clipping versus coiling continue to be a topic of debate. We evaluated a national, multihospital patient data base to examine recent trends in ruptured aneurysm therapies and to compare peri-procedural outcomes between clipping and coiling treatments.

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