Foros de Conocimiento
medtronic PRODUCTOS
boston_scientific PRODUCTOS
TERUMO PRODUCTOS
Biotronik PRODUCTOS
Sirtex PRODUCTOS
Striker Neurovascular PRODUCTOS
BIOSENSORS PRODUCTOS

ESTUDIOS


19 marzo 2013

STROKE. Burden of Intracranial Steno-Occlusive Lesions on Initial Computed Tomography Angiography Predicts Poor Outcome in Patients With Acute Stroke

Alexander Y. Lau, MD; Ka-sing Lawrence Wong, MD; Michael Lev, MD; Karen Furie, MD; Wade Smith, MD, PhD; Anthony S. Kim, MD, MAS

Background and Purpose: Computed tomography angiography is an accurate noninvasive method to diagnose intracranial steno-occlusive disease (ICAD) at initial presentation for stroke. We aimed to identify features of computed tomography angiography associated with unfavorable outcome.

26 marzo 2013

STROKE. Malignant Emboli on Transcranial Doppler During Carotid Stenting Predict Postprocedure Diffusion-Weighted Imaging Lesions

Mohammed A. Almekhlafi, MD, MSc, FRCPC; Andrew M. Demchuk, MD, FRCPC; Sachin Mishra, MD; Simerpreet Bal, DM; Bijoy K. Menon, MD, DM; Samuel Wiebe, MD, MSc, FRCPC; Fiona M. Clement, PhD; John H. Wong, MD, MSc, FRCSC; Michael D. Hill, MD, MSc, FRCPC; Mayank Goyal, MD, FRCPC

Background and Purpose: Carotid angioplasty and stenting (CAS) has a higher incidence of periprocedural stroke compared with endarterectomy. Identifying CAS steps with the highest likelihood of embolization may have important implications. We evaluated CAS safety by correlating the findings of procedural transcranial Doppler with postprocedure diffusion-weighted imaging (DWI) lesions.

18 abril 2013

STROKE. Rescue Treatment of Thromboembolic Complications During Endovascular Treatment of Cerebral Aneurysms

Waleed Brinjikji, MD; Jennifer S. McDonald, PhD; David F. Kallmes, MD; Harry J. Cloft, MD, PhD

Background and Purpose: Acute intraprocedural thrombus formation complicating endovascular cerebral aneurysm treatment is often treated with intra-arterial or intravenous administration of thrombolytic agents or glycoprotein IIb/IIIa (GpIIb/IIIa) inhibitors. We sought to evaluate the morbidity and mortality associated with such treatments using a large multihospital database.

19 marzo 2013

STROKE. Stent-Assisted Coiling of Intracranial Aneurysms Predictors of Complications, Recanalization, and Outcome in 508 Cases

Nohra Chalouhi, MD; Pascal Jabbour, MD; Saurabh Singhal, MD; Ross Drueding, BA; Robert M. Starke, MD; Richard T. Dalyai, MD; Stavropoula Tjoumakaris, MD; L. Fernando Gonzalez, MD; Aaron S. Dumont, MD; Robert Rosenwasser, MD; Ciro G. Randazzo, MD

Background and Purpose: Self-expanding stents are increasingly used for treatment of complex intracranial aneurysms. We assess the safety and the efficacy of intracranial stenting and determine predictors of treatment outcomes.

28 febrero 2013

STROKE. Comparative Effectiveness of Unruptured Cerebral Aneurysm Therapies. Propensity Score Analysis of Clipping Versus Coiling

Jennifer S. McDonald, PhD; Robert J. McDonald, MD, PhD; Jiaquan Fan, PhD; David F. Kallmes, MD; Giuseppe Lanzino, MD; Harry J. Cloft, MD, PhD

Background and Purpose: Endovascular therapy has increasingly become the most common treatment for unruptured cerebral aneurysms in the United States. We evaluated a national, multi-hospital database to examine recent utilization trends and compare periprocedural outcomes between clipping and coiling treatments of unruptured aneurysms.

13 febrero 2013

STROKE. Asymptomatic Carotid Artery Stenosis and the Risk of Ischemic Stroke According to Subtype in Patients With Clinical Manifest Arterial Disease

Anne G. den Hartog, MD; Sefanja Achterberg, MD; Frans L. Moll, MD, PhD; L. Jaap Kappelle, MD, PhD; Frank L.J. Visseren, MD, PhD; Yolanda van der Graaf, MD, PhD; Ale Algra, MD, PhD; Gert Jan de Borst, MD, PhD; on behalf of the SMART Study Group

Background and Purpose: Because best medical treatment is improving, the risk of stroke in asymptomatic carotid artery stenosis (ACAS) may decline. We evaluated the risk of ischemic stroke and stratified it according to stroke subtype in patients with ACAS during long-term follow-up.

26 febrero 2013

STROKE. Safety of Thrombolysis in Stroke Mimics. Results From a Multicenter Cohort Study

Sanne M. Zinkstok, MD; Stefan T. Engelter, MD; Henrik Gensicke, MD; Philippe A. Lyrer, MD; Peter A. Ringleb, MD; Ville Artto, MD, PhD; Jukka Putaala, MD, PhD; Elena Haapaniemi, MD, PhD; Turgut Tatlisumak, MD, PhD; Yaohua Chen, MD; Didier Leys, MD, PhD; Hakan Sarikaya, MD; P. Michel, MD; Céline Odier, MD; Jörg Berrouschot, MD; Marcel Arnold, MD; Mirjam R. Heldner, MD; Andrea Zini, MD; Valentina Fioravanti, MD; Visnja Padjen, MD; Ljiljana Beslac-Bumbasirevic, MD, PhD; Alessandro Pezzini, MD; Yvo B. Roos, MD, PhD; Paul J. Nederkoorn, MD, PhD

Background and Purpose: Intravenous thrombolysis for acute ischemic stroke is beneficial within 4.5 hours of symptom onset, but the effect rapidly decreases over time, necessitating quick diagnostic in-hospital work-up. Initial time strain occasionally results in treatment of patients with an alternate diagnosis (stroke mimics). We investigated whether intravenous thrombolysis is safe in these patients.

29 abril 2014

FRONTIERS. Clinical outcome after intra-arterial stroke therapy in the very elderly: why is it so heterogeneous?

Ronil V. Chandra1*, Thabele M. Leslie-Mazwi2, Brijesh P. Mehta2, Albert J. Yoo3 and Claus Z. Simonsen4

Very elderly patients (i.e., ≥80 years) are disproportionally affected by acute ischemic stroke. They account for a third of hospital stroke admissions, but two-thirds of overall stroke-related morbidity and mortality. There is some evidence of clinical benefit in treating selected very elderly patients with intravenous thrombolysis (IVT). For very elderly patients ineligible or non-responsive to IVT, intra-arterial therapy (IAT) may have promise in improving clinical outcome. However, its unequivocal efficacy in the general population remains to be proven in randomized trials. Small cohort studies reveal that the rate of good clinical outcome for very elderly patients after IAT is highly variable, ranging from 0 to 28%. In addition, they experience higher rates of futile reperfusion than younger patients. Thus, it is imperative to understand the factors that impact on clinical outcome in very elderly patients after IAT. The aim of this review is to examine the factors that may be responsible for the heterogeneous clinical response of the very elderly to IAT. This will allow the reader to integrate the current available evidence to individualize intra-arterial stroke therapy in very elderly patients. Placing emphasis on pre-stroke independent living, smaller infarct core size, short procedure times, and avoiding general anesthesia where feasible, will help improve rates of good clinical outcome.

08 junio 2013

JOURNAL OF NEUROINTERVENTIONAL SURGERY. New devices. Original research. Double-lumen arterial balloon catheter technique for Onyx embolization of dural arteriovenous fistulas: initial experience

Albert Ho Yuen Chiu1,2, Grace Aw1, Jason David Wenderoth1

Background: Dural arteriovenous fistulas are vascular malformations with variable clinical symptoms that range in severity from completely asymptomatic to seizures, dementia, loss of vision and intracranial hemorrhage. Historically, surgical obliteration was the treatment of choice but, more recently, endovascular embolization has become the first-line treatment. The liquid embolic agent Onyx (ethyl vinyl copolymer) has become the agent of choice, but problems with reflux around the delivery microcatheter and inadvertent venous penetration have arisen.

20 marzo 2013

JOURNAL OF NEUROINTERVENTIONAL SURGERY. Ischemic stroke. Original research. Learning curve of Wingspan stenting for intracranial atherosclerosis: single-center experience of 95 consecutive patients

Simon Chun Ho Yu1, Thomas Wai Hong Leung2, Kwok Tung Lee1, Lawrence Ka Sing Wong2

Background: Symptomatic brain hemorrhage was a significant cause of periprocedural stroke or death following stenting in the Stenting and Aggressive Medical Management for Preventing Recurrent Stroke in Intracranial Stenosis trial, which called into question the safety of Wingspan stenting for intracranial atherosclerosis. This study analyzed the role of a learning curve in the safety and outcome of Wingspan stenting from the experience of 95 consecutive patients at a single center.

Utilizamos cookies propias para el correcto funcionamiento del sitio web y mejorar nuestros servicios. Pulse el botón Aceptar todas para aceptar su uso. Puede cambiar la configuración u obtener más información en nuestra Política de cookies o pulsando Modificar configuración.