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ABSTRACT


21 enero 2016

AMERICAN JOURNAL OF NEURORADIOLOGY. Smoking Does Not Affect Occlusion Rates and Morbidity-Mortality after Pipeline Embolization for Intracranial Aneurysms

A. Rouchaud, W. Brinjikji, H.J. Cloft, G. Lanzino, T. Becske and D.F. Kallmes

BACKGROUND AND PURPOSE: Smoking is a major risk factor for patients with intracranial aneurysms, yet the effects of smoking on outcomes of aneurysm with flow-diverter treatment remain unknown. We studied the impact of smoking on long-term angiographic and clinical outcomes after flow-diverter treatment of intracranial aneurysms.

21 enero 2016

AMERICAN JOURNAL OF NEURORADIOLOGY. Current Trends and Results of Endovascular Treatment of Unruptured Intracranial Aneurysms at a Single Institution in the Flow-Diverter Era

O. Petr, W. Brinjikji, H. Cloft, D.F. Kallmes and G. Lanzino

BACKGROUND AND PURPOSE: During the past several years, the number of unruptured aneurysms treated with endovascular techniques has increased. Traditionally, coil embolization was the treatment of choice for these lesions; however, recently flow diversion has become a viable, and in some cases superior, treatment option. The current single-center study presents results and trends of endovascular treatment with flow diversion and coil embolization in an unselected group of patients with unruptured intracranial aneurysms in a “real world“ setting during the flow-diverter era.

07 abril 2016

AMERICAN JOURNAL OF NEURORADIOLOGY. Association between Postprocedural Infarction and Antiplatelet Drug Resistance after Coiling for Unruptured Intracranial Aneurysms

M.S. Kim, K.I. Jo, J.Y. Yeon, J.S. Kim, K.H. Kim, P. Jeon and S.C. Hong

BACKGROUND AND PURPOSE: Procedure-related thromboembolism is a major limitation of coil embolization, but the relationship between thromboembolic infarction and antiplatelet resistance is poorly understood. The purpose of this study was to verify the association between immediate postprocedural thromboembolic infarction and antiplatelet drug resistance after endovascular coil embolization for unruptured intracranial aneurysm.

21 enero 2016

AMERICAN JOURNAL OF NEURORADIOLOGY. Occlusion of Posterior Fossa Dural Sinuses in Vein of Galen Malformation

A. Berenstein, N. Toma, Y. Niimi and S. Paramasivam

BACKGROUND AND PURPOSE: Spontaneous or progressive occlusion of the posterior fossa dural sinuses is often observed in patients with vein of Galen malformation, which can affect the clinical course. The aim of this study was to examine the patency of the posterior fossa dural sinuses in patients with vein of Galen malformation and to analyze the clinical and angiographic course of this condition.

14 enero 2016

AMERICAN JOURNAL OF NEURORADIOLOGY. Outcomes Are Not Different between Patients with Intermediate and High DWI-ASPECTS after Stent-Retriever Embolectomy for Acute Anterior Circulation Stroke

S.K. Kim, W. Yoon, M.S. Park, T.W. Heo, B.H. Baek and Y.Y. Lee

BACKGROUND AND PURPOSE: Questions remain as to what benefits embolectomy provides to patients presented with considerable early ischemic changes on baseline imaging studies. This study aimed to investigate the impact of the Alberta Stroke Program Early CT Score applied to DWI on treatment outcomes in patients with acute stroke undergoing stent-retriever embolectomy.

28 enero 2016

AMERICAN JOURNAL OF NEURORADIOLOGY. Clinical Impact of Ventilation Duration in Patients with Stroke Undergoing Interventional Treatment under General Anesthesia: The Shorter the Better?

O. Nikoubashman, K. Schürmann, T. Probst, M. Müller, J.P. Alt, A.E. Othman, S. Tauber, M. Wiesmann and A. Reich

BACKGROUND AND PURPOSE: Whether general anesthesia for neurothrombectomy in patients with ischemic stroke has a negative impact on clinical outcome is currently under discussion. We investigated the impact of early extubation and ventilation duration in a cohort that underwent thrombectomy under general anesthesia.

21 abril 2016

AMERICAN JOURNAL OF NEURORADIOLOGY. Endovascular Treatment versus Best Medical Treatment in Patients with Acute Ischemic Stroke: A Meta-Analysis of Randomized Controlled Trials

A.I. Qureshi, M.F. Ishfaq, H.A. Rahman and A.P. Thomas

BACKGROUND AND PURPOSE: Endovascular treatment has emerged as a minimally invasive technique for patients with acute ischemic stroke to achieve recanalization. Our aim was to determine the effects of endovascular treatment on clinical and safety outcomes compared with best medical treatment.

01 marzo 2007

JOURNAL OF NEUROSURGERY. Clinical and radiographic analysis of cervical disc arthroplasty compared with allograft fusion: a randomized controlled clinical trial

Praveen V. Mummaneni, M.D.1, J. Kenneth Burkus, M.D.2, Regis W. Haid, M.D.3, Vincent C. Traynelis, M.D.4, and Thomas A. Zdeblick, M.D.5

OBJECT: The authors report the results of a prospective randomized multicenter study in which the results of cervical disc arthroplasty were compared with anterior cervical discectomy and fusion (ACDF) in patients treated for symptomatic single-level cervical degenerative disc disease (DDD).

01 julio 2016

JOURNAL OF NEUROSURGERY. Preoperative and postoperative predictors of long-term outcome after endovascular treatment of poor-grade aneurysmal subarachnoid hemorrhage

Bing Zhao, MD1,2,*, Hua Yang, MD3, Kuang Zheng, MD1, Zequn Li, MD1, Ye Xiong, MD1, Xianxi Tan, MD1, Ming Zhong, MD1, and the AMPAS Study Group

OBJECTIVE: An increasing number of patients with poor-grade aneurysmal subarachnoid hemorrhage (aSAH) have received endovascular treatment. Endovascular treatment of poor-grade aSAH, however, is based on single-center retrospective studies, and predictors of long-term outcome have not been well defined. Using results from a multicenter prospective registry, the authors aimed to develop preoperative and postoperative prognostic models to predict poor outcome after endovascular treatment of poor-grade aSAH.

01 julio 2016

JOURNAL OF NEUROSURGERY. Carotid artery stenosis with a high-intensity signal plaque on time-of-flight magnetic resonance angiography and association with evidence of intraplaque hypoxia

Atsushi Ogata, MD, PhD1, Masatou Kawashima, MD, PhD1, Tomihiro Wakamiya, MD, PhD1, Masashi Nishihara, MD2, Jun Masuoka, MD, PhD1, Yukiko Nakahara, MD, PhD1, Ryo Ebashi, MD1, Kohei Inoue, MD, PhD1, Yukinori Takase, MD, PhD1, Hiroyuki Irie, MD, PhD2, and Tatsuya Abe, MD, PhD1

OBJECTIVE: Hypoxia induces angiogenesis and plays a major role in the progression of carotid plaques. During carotid intervention, plaques with high-intensity signals on time-of-flight (TOF) magnetic resonance angiography (MRA) often cause ischemic stroke and embolic complications. However, the role of intraplaque hypoxia before carotid endarterectomy (CEA) and carotid artery stenting is not presently understood. In this study the authors aimed to investigate the relationship between intraplaque hypoxia and MRA findings.

24 junio 2016

JOURNAL OF NEUROSURGERY. Stent deployment protocol for optimized real-time visualization during endovascular neurosurgery

Michael A. Silva, BA, Alfred P. See, MD, Hormuzdiyar H. Dasenbrock, MD, Ramsey Ashour, MD, Priyank Khandelwal, MBBS, Nirav J. Patel, MD, Kai U. Frerichs, MD, and Mohammad A. Aziz-Sultan, MD

Abstract: Successful application of endovascular neurosurgery depends on high-quality imaging to define the pathology and the devices as they are being deployed. This is especially challenging in the treatment of complex cases, particularly in proximity to the skull base or in patients who have undergone prior endovascular treatment. The authors sought to optimize real-time image guidance using a simple algorithm that can be applied to any existing fluoroscopy system. Exposure management (exposure level, pulse management) and image post-processing parameters (edge enhancement) were modified from traditional fluoroscopy to improve visualization of device position and material density during deployment. Examples include the deployment of coils in small aneurysms, coils in giant aneurysms, the Pipeline embolization device (PED), the Woven EndoBridge (WEB) device, and carotid artery stents. The authors report on the development of the protocol and their experience using representative cases.

17 junio 2016

JOURNAL OF NEUROSURGERY. Effect of short-term ε-aminocaproic acid treatment on patients undergoing endovascular coil embolization following aneurysmal subarachnoid hemorrhage

Mahdi Malekpour, MD1, Charles Kulwin, MD1, Bradley N. Bohnstedt, MD1, Golnar Radmand, MSc2, Rishabh Sethia, BS1, Stephen K. Mendenhall, MD1, Jonathan Weyhenmeyer, MD1, Benjamin K. Hendricks, MD1, Thomas Leipzig, MD1, Troy D. Payner, MD1, Mitesh V. Shah, MD1, John Scott, MD1, Andrew DeNardo, MD1, Daniel Sahlein, MD1, and Aaron A. Cohen-Gadol, MD, MSc1,3

OBJECTIVE: Aneurysmal rebleeding before definitive obliteration of the aneurysm is a cause of mortality and morbidity. There are limited data on the role of short-term antifibrinolytic therapy among patients undergoing endovascular intervention.

17 junio 2016

JOURNAL OF NEUROSURGERY. Is there an inherited anatomical conformation favoring aneurysmal formation of the anterior communicating artery?

Romain Bourcier, MD1,2,3, Cédric Lenoble, MD1, Béatrice Guyomarch-Delasalle, MSc2,3, Benjamin Daumas-Duport, MD1, Chrysanthi Papagiannaki, MD4, Richard Redon, PhD2,3, and Hubert Desal, MD, PhD1,2,3

OBJECTIVE: The pathophysiological mechanisms responsible for the formation of intracranial aneurysms (IAs) remain only partially elucidated. However, current evidence suggests a genetic component. The purpose of this study was to investigate the specific anatomical variations in the arterial complex that are associated with the presence of anterior communicating artery (ACoA) aneurysms in the familial forms of IAs.

10 junio 2016

JOURNAL OF NEUROSURGERY. Patency of anterior circulation branch vessels after Pipeline embolization: longer-term results from 82 aneurysm cases

Leonardo Rangel-Castilla, MD1,4, Stephan A. Munich, MD1,4, Naser Jaleel, MD, PhD1,4, Marshall C. Cress, MD1,4, Chandan Krishna, MD1,4, Ashish Sonig, MD, MS, MCh1,4, Kenneth V. Snyder, MD, PhD1,2,3,4, Adnan H. Siddiqui, MD, PhD1,2,4,5,6, and Elad I. Levy, MD, MBA1,2,4,5

OBJECTIVE: The Pipeline Embolization Device (PED) has become increasingly used for the treatment of intracranial aneurysms. Given its high metal surface area coverage, there is concern for the patency of branch vessels that become covered by the device. Limited data exist regarding the patency of branch vessels adjacent to aneurysms that are covered by PEDs. The authors assessed the rate of intracranial internal carotid artery, anterior circulation branch vessel patency following PED placement at their institution.

03 junio 2016

JOURNAL OF NEUROSURGERY. A leap forward in the endovascular management of acute basilar artery occlusion since the appearance of stent retrievers: a single-center comparative study

Robert Fahed, MD1, Federico Di Maria, MD1, Charlotte Rosso, MD, PhD2,3,4, Nader Sourour, MD1, Vincent Degos, MD, PhD3,5, Sandrine Deltour, MD2, Flore Baronnet-Chauvet, MD, PhD2,3, Anne Léger, MD2, Sophie Crozier, MD, PhD2, Joseph Gabrieli, MD1,3, Yves Samson, MD2,3,4, Jacques Chiras, MD1,3, and Frédéric Clarençon, MD, PhD1,3

OBJECTIVE: Contrary to acute ischemic stroke involving the anterior circulation, no randomized trial has yet demonstrated the safety and effectiveness of endovascular management in acute basilar artery occlusion (BAO). Recently developed thrombectomy devices, such as stentrievers and aspiration systems, have helped in improving the endovascular management of acute ischemic stroke. The authors sought to assess the impact of these devices in the endovascular treatment of acute BAO.

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