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ABSTRACT


03 diciembre 2013

STROKE. Clinical Sciences. Balloon Guide Catheter Improves Revascularization and Clinical Outcomes With the Solitaire Device. Analysis of the North American Solitaire Acute Stroke Registry

Thanh N. Nguyen, MD, FRCPC; Timothy Malisch, MD; Alicia C. Castonguay, PhD; Rishi Gupta, MD; Chung-Huan J. Sun, MD; Coleman O. Martin, MD; William E. Holloway, MD; Nils Mueller-Kronast, MD; Joey D. English, MD, PhD; Italo Linfante, MD; Guilherme Dabus, MD; Franklin A. Marden, MD; Hormozd Bozorgchami, MD; Andrew Xavier, MD; Ansaar T. Rai, MD; Michael T. Froehler, MD, PhD; Aamir Badruddin, MD; Muhammad Taqi, MD; Michael G. Abraham, MD; Vallabh Janardhan, MD; Hashem Shaltoni, MD; Roberta Novakovic, MD; Albert J. Yoo, MD; Alex Abou-Chebl, MD; Peng R. Chen, MD; Gavin W. Britz, MD; Ritesh Kaushal, MD; Ashish Nanda, MD; Mohammad A. Issa, MD; Hesham Masoud, MD; Raul G. Nogueira, MD; Alexander M. Norbash, MD; Osama O. Zaidat, MD, MS

Background and Purpose: Efficient and timely recanalization is an important goal in acute stroke endovascular therapy. Several studies demonstrated improved recanalization and clinical outcomes with the stent retriever devices compared with the Merci device. The goal of this study was to evaluate the role of the balloon guide catheter (BGC) and recanalization success in a substudy of the North American Solitaire Acute Stroke (NASA) registry.

19 noviembre 2013

STROKE. Clinical Sciences. Extending the Indications of Flow Diversion to Small, Unruptured, Saccular Aneurysms of the Anterior Circulation

Nohra Chalouhi, MD; Robert M. Starke, MD; Steven Yang, BS; Cory D. Bovenzi, BS; Stavropoula Tjoumakaris, MD; David Hasan, MD; L. Fernando Gonzalez, MD; Robert Rosenwasser, MD; Pascal Jabbour, MD

Background and Purpose: Flow diverters are currently indicated for treatment of large and complex intracranial aneurysms. The purpose of this study was to determine whether the indications of flow diversion can be safely extended to unruptured, small, saccular aneurysms (<10 mm) of the anterior circulation.

25 julio 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. Angioarchitectural Characteristics Associated with Complications of Embolization in Supratentorial Brain Arteriovenous Malformation

J. Pan, H. He, L. Feng, F. Viñuela, Z. Wu and R. Zhan

Background and Purpose: Embolization is an important therapeutic technique in brain arteriovenous malformations; however, little has been reported on the factors contributing to complications. We retrospectively reviewed a large series of supratentorial brain AVMs to identify the angioarchitectural characteristics that might be associated with the complications of embolization and poor clinical outcomes.

18 julio 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. Differences in the Angiographic Evaluation of Coiled Cerebral Aneurysms between a Core Laboratory Reader and Operators: Results of the Cerecyte Coil Trial

I. Rezek, R.K. Lingineni, M. Sneade, A.J. Molyneux, A.J. Fox and D.F. Kallmes

Background and Purpose: Independent evaluation of angiographic images is becoming widely applied in the assessment of treatment outcomes of cerebral aneurysms. In the current study, we assessed the agreement between an independent core laboratory and the operators regarding angiographic appearance in a recent randomized, controlled trial.

01 agosto 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. Hyperattenuated Intracerebral Lesions after Mechanical Recanalization in Acute Stroke

N. Lummel, G. Schulte-Altedorneburg, C. Bernau, T. Pfefferkorn, M. Patzig, H. Janssen, C. Opherk, H. Brückmann and J. Linn

Background and Purpose: Following mechanical recanalization of an acute intracranial vessel occlusion, hyperattenuated lesions are frequently found on postinterventional cranial CT. They represent either blood or—more frequently—enhancement of contrast agent. Here, we aimed to evaluate the prognostic value of these hyperattenuated intracerebral lesions.

08 agosto 2013

AMERICAN JOURNAL OF NEURORADIOLOGY. When Is Carotid Angioplasty and Stenting the Cost-Effective Alternative for Revascularization of Symptomatic Carotid Stenosis? A Canadian Health System Perspective

M.A. Almekhlafi, M.D. Hill, S. Wiebe, M. Goyal, D. Yavin, J.H. Wong and F.M. Clement

Background and Purpose: Carotid revascularization procedures can be complicated by stroke. Additional disability adds to the already high costs of the procedure. To weigh the cost and benefit, we estimated the cost-utility of carotid angioplasty and stenting compared with carotid endarterectomy among patients with symptomatic carotid stenosis, with special emphasis on scenario analyses that would yield carotid angioplasty and stenting as the cost-effective alternative relative to carotid endarterectomy.

19 julio 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Mechanical Thrombectomy in Acute Stroke: Prospective Pilot Trial of the Solitaire FR Device while Under Conscious Sedation

S. Soize, K. Kadziolka, L. Estrade, I. Serre, S. Bakchine and L. Pierot

Background and Purpose: The best approach between general anesthesia and conscious sedation to perform mechanical thrombectomy remains unknown. The goal of our study was to evaluate the feasibility, safety, and efficacy of mechanical thrombectomy under conscious sedation in patients with acute ischemic stroke, using the Solitaire FR device, in a prospective, single-center, single-arm study.

12 julio 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Comparison of Stent-Retriever Devices versus the Merci Retriever for Endovascular Treatment of Acute Stroke

E. Broussalis, E. Trinka, W. Hitzl, A. Wallner, V. Chroust and M. Killer-Oberpfalzer

Background and Purpose: Revascularization of large cerebral artery occlusion is the therapeutic goal in stroke therapy. Currently, many recanalization devices are in clinical use. This study compares the outcome parameters, efficacy, and safety of the new generation of stent-retriever devices with the well-established Merci retriever.

02 agosto 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Canadian Experience with the Pipeline Embolization Device for Repair of Unruptured Intracranial Aneurysms

Background and Purpose: Flow-diverting stents, such as the PED, have emerged as a novel means of treating complex intracranial aneurysms. This retrospective analysis of the initial Canadian experience provides insight into technical challenges, clinical and radiographic outcomes, and complication rates after the use of flow-diverting stents for unruptured aneurysms.

02 agosto 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Prospective Comparison of Angio-Seal versus Manual Compression for Hemostasis after Neurointerventional Procedures under Systemic Heparinization

H.-F. Wong, C.-W. Lee, Y.-L. Chen, Y.-M. Wu, H.-H. Weng, Y.-H. Wang and H.-M. Liu

Background and Purpose: The use of arterial closure device in patients with prolonged high ACT values has not been extensively studied. The aim of this study was to compare the safety and efficacy of an arterial closure device, Angio-Seal, with manual compression in patients on anticoagulation following neurointerventional procedures.

21 junio 2012

AMERICAN JOURNAL OF NEURORADIOLOGY. Technical Feasibility and Application of Mechanical Thrombectomy with the Solitaire FR Revascularization Device in Acute Basilar Artery Occlusion

P. Mordasini, C. Brekenfeld, J.V. Byrne, U. Fischer, M. Arnold, M.R. Heldner, R. Lüdi, H.P. Mattle, G. Schroth and J. Gralla

Background and Purpose: Acute BAO is a devastating neurological condition associated with a poor clinical outcome and a high mortality rate. Recanalization has been identified as a major prognostic factor for good outcome in BAO. Mechanical thrombectomy using retrievable stents is an emerging treatment option for acute stroke. First clinical trials using stent retrievers have shown promising high recanalization rates. However, these studies mainly included large artery occlusions in the anterior circulation with only a few or single cases of BAO. Therefore, the purpose of this study was to evaluate technical feasibility, safety, and efficacy of mechanical thrombectomy using retrievable stent in the treatment of acute BAO.

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