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Journal of Neurointerventional Surgery

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https://www.readbyqxmd.com/read/28302864/segmental-upper-mid-basilar-artery-sacrifice-in-a-child-using-a-micro-vascular-plug-device-for-treatment-of-a-basilar-arteriovenous-fistula-compressing-the-brainstem
#1
Alfred P See, Michael A Kochis, Darren B Orbach
No abstract text is available yet for this article.
March 16, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28289148/admission-hyperglycemia-and-outcomes-in-large-vessel-occlusion-strokes-treated-with-mechanical-thrombectomy
#2
Nitin Goyal, Georgios Tsivgoulis, Abhi Pandhi, Kira Dillard, Aristeidis H Katsanos, Georgios Magoufis, Jason J Chang, Ramin Zand, Daniel Hoit, Apostolos Safouris, Asim Choudhri, Anne W Alexandrov, Andrei V Alexandrov, Adam S Arthur, Lucas Elijovich
BACKGROUND AND PURPOSE: Higher admission serum glucose levels have been associated with poor outcomes in patients with acute ischemic stroke (AIS) treated with IV thrombolysis. We sought to evaluate the association of admission serum glucose with early outcomes of patients with emergent large vessel occlusion (ELVO) treated with mechanical thrombectomy (MT). METHODS: Consecutive AIS patients due to ELVO treated with MT in three tertiary stroke centers were evaluated...
March 13, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28265011/tourniquet-parent-artery-occlusion-after-flow-diversion
#3
Visish M Srinivasan, Maxim Mokin, Edward A M Duckworth, Stephen Chen, Ajit Puri, Peter Kan
BACKGROUND: The Pipeline Embolization Device (PED) is increasingly used for both on- and off-label purposes for treatment of intracranial aneurysms. The device gradually slows flow of blood into the aneurysm, but the high metal coverage of PED promotes endothelialization of the device. Occasionally, this leads to in-stent stenosis that is clinically well tolerated. We present a multi-institutional Pipeline series that includes three cases of gradual asymptomatic occlusion within the PED and parent vessel...
March 6, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28265010/venous-collateral-drainage-patterns-predict-clinical-worsening-in-dural-venous-sinus-thrombosis
#4
Sunil A Sheth, Harry Trieu, David S Liebeskind, Jeffrey L Saver, Viktor Szeder, Reza Jahan, Satoshi Tateshima, Gary Duckwiler
BACKGROUND: Dural venous sinus thrombosis (DVST) is an increasingly recognized cause of a wide array of neurological symptoms, with outcomes that range from complete recovery to death. The condition of approximately 23% of patients with DVST will worsen after initial presentation, as a result of restricted venous outflow and venous hypertension, but early identification of this subset is challenging. A venous collateral scale (VCS) that grades alternative drainage routes may improve prediction of clinical deterioration...
March 6, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28251915/3d-guided-direct-puncture-therapeutic-embolization-of-intracranial-tumors
#5
Jildaz Caroff, Nidhal Benachour, Léon Ikka, Jérôme Nevoux, Fabrice Parker, Valerio Da Ros, Cristian Mihalea, Marta Iacobucci, Jacques Moret, Laurent Spelle
BACKGROUND: Direct punctures of intracranial tumors have rarely been described in the literature. OBJECTIVE: To assess the feasibility, safety, efficacy, and advantages of using 3D DSA-guided direct puncture rather than the traditional transarterial route to preoperatively devascularize intracranial lesions in particular clinical situations, paying special attention to any correlation with surgical observations; we present the largest series to date. METHODS: Between July 2015 and July 2016, data from all presurgical embolizations performed in our institution were prospectively collected...
March 1, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28242653/comparison-of-eye-lens-doses-imparted-during-interventional-and-non-interventional-neuroimaging-techniques-for-assessment-of-intracranial-aneurysms
#6
N Guberina, U Dietrich, M Forsting, A Ringelstein
BACKGROUND: A neurointerventional examination of intracranial aneurysms often involves the eye lens in the primary beam of radiation. OBJECTIVE: To assess and compare eye-lens doses imparted during interventional and non-interventional imaging techniques for the examination of intracranial aneurysms. METHODS: We performed a phantom study on an anthropomorphic phantom (ATOM dosimetry phantom 702-D; CIRS, Norfolk, Virginia, USA) and assessed eye-lens doses with thermoluminescent dosimeters (TLDs) type 100 (LiF:Mg, Ti) during (1) interventional (depiction of all cerebral arteries with triple 3D-rotational angiography and twice 2-plane DSA anteroposterior and lateral projections) and (2) non-interventional (CT angiography (CTA)) diagnosis of intracranial aneurysms...
February 27, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28235955/validation-of-cerebral-arteriovenous-malformation-hemodynamics-assessed-by-dsa-using-quantitative-magnetic-resonance-angiography-preliminary-study
#7
Sophia F Shakur, Denise Brunozzi, Ahmed E Hussein, Andreas Linninger, Chih-Yang Hsu, Fady T Charbel, Ali Alaraj
BACKGROUND: The hemodynamic evaluation of cerebral arteriovenous malformations (AVMs) using DSA has not been validated against true flow measurements. OBJECTIVE: To validate AVM hemodynamics assessed by DSA using quantitative magnetic resonance angiography (QMRA). MATERIALS AND METHODS: Patients seen at our institution between 2007 and 2016 with a supratentorial AVM and DSA and QMRA obtained before any treatment were retrospectively reviewed...
February 24, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28235954/a-case-of-right-middle-cerebral-artery-tendonectomy-following-mitral-valve-replacement-surgery
#8
Mary C Thomas, Josser E Delgado Almandoz, Adam J Todd, Mark L Young, Jennifer L Fease, Jill Marie Scholz, Anna M Milner, Maximilian Mulder, Yasha Kayan
Following mechanical mitral valve replacement surgery, a 69-year-old woman had an ischemic stroke in the right middle cerebral artery territory. Mechanical thrombectomy showed the embolus to be a piece of chordae tendineae excised during the valve replacement surgery.
February 24, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28235953/nickel-associated-delayed-multiple-white-matter-lesions-after-stent-assisted-coil-embolization-of-intracranial-unruptured-aneurysm
#9
Hun Soo Park, Ichiro Nakagawa, Shohei Yokoyama, Daisuke Wajima, Takeshi Wada, Yasushi Motoyama, Kimihiko Kichikawa, Hiroyuki Nakase
Metal-induced encephalopathy after stent-assisted coil embolization is extremely rare. The present report describes two patients who presented with symptomatic intracranial parenchymal edematous lesions after stent-assisted coil embolization. A 64-year-old woman underwent stent-assisted coil embolization for a left internal carotid artery aneurysm; 21 days after the procedure she presented with right hand weakness and MRI revealed multifocal white matter lesions. Another woman aged 52 years underwent stent-assisted coil embolization for right vertebral artery aneurysm; 18 days after the procedure she presented with left-sided sensory disturbance and MRI demonstrated multiple white matter lesions...
February 24, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28235952/rete-mirabile-associated-with-pial-arteriovenous-fistula-imaging-features-with-literature-review
#10
Prabath Kumar Mondel, Rashmi Saraf, Uday S Limaye
A rete mirabile is a vascular network of intercommunicating small arteries or arterioles that replace the definitive adult artery supplying the brain. It supplies the brain in lower mammals but is not seen in normal human embryological development. A 26-year-old man presented with worsening tinnitus that was interfering with his sleep. On CT and digital subtraction angiography he was found to have a temporal lobe pial arteriovenous fistula with bilateral carotid and vertebral rete mirabile. The patient was offered open surgical and endovascular treatment options for pial arteriovenous fistula but he refused both and opted for conservative medical management...
February 24, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28223428/periprocedural-outcomes-and-early-safety-with-the-use-of-the-pipeline-flex-embolization-device-with-shield-technology-for-unruptured-intracranial-aneurysms-preliminary-results-from-a-prospective-clinical-study
#11
Mario Martínez-Galdámez, Saleh M Lamin, Konstantinos G Lagios, Thomas Liebig, Elisa F Ciceri, Rene Chapot, Luc Stockx, Swarupsinh Chavda, Christoph Kabbasch, Giuseppe Farago, Hannes Nordmeyer, Thierry Boulanger, Mariangela Piano, Edoardo P Boccardi
BACKGROUND AND PURPOSE: The Pipeline Embolization Device (PED) has become a routine first-line option for treatment of intracranial aneurysms (IAs). We assessed the early safety and technical success of a new version of PED, Pipeline Flex Embolization Device with Shield Technology (Pipeline Shield), which has the same design and configuration but has been modified to include a surface synthetic biocompatible polymer. MATERIALS AND METHODS: The Pipeline Flex Embolization Device with Shield Technology (PFLEX) study is a prospective, single-arm, multicenter study for the treatment of unruptured IAs using Pipeline Shield...
February 20, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28219938/endovascular-treatment-of-intracranial-aneurysms-with-the-woven-endobridge-device-mid-term-and-long-term-results
#12
Benjamin Mine, Alexandra Goutte, Denis Brisbois, Boris Lubicz
PURPOSE: To evaluate the clinical and anatomical results of treatment of intracranial aneurysms (IA) with the Woven EndoBridge (WEB) device, with emphasis on mid term and long term follow-up. METHODS: Between November 2010 and November 2015, we retrospectively identified, in our prospectively maintained database, all patients treated by WEB device placement for an IA at three institutions. Clinical charts, procedural data, and angiographic results were reviewed...
February 20, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28213478/endovascular-mechanical-thrombectomy-for-cerebral-venous-sinus-thrombosis-a-systematic-review
#13
REVIEW
Adeel Ilyas, Ching-Jen Chen, Daniel M Raper, Dale Ding, Thomas Buell, Panogiotis Mastorakos, Kenneth C Liu
BACKGROUND: Cerebral venous sinus thrombosis (CVST) is an uncommon form of stroke that, when severe, can be a therapeutic challenge. Endovascular mechanical thrombectomy (EMT) techniques have significantly evolved over the past decade, but data regarding the efficacy and safety of EMT for CVST are poorly defined. OBJECTIVE: To summarize the large number of case series on this relatively rare condition and establish trends in the outcomes of EMT for CVST. METHODS: A literature review was performed using PubMed and Medline to identify reports of three or more patients with CVST treated with EMT...
February 17, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28196918/m1-macrophages-are-required-for-murine-cerebral-aneurysm-formation
#14
Kamil W Nowicki, Koji Hosaka, Frank J Walch, Edward W Scott, Brian L Hoh
INTRODUCTION: Macrophages and neutrophils have been separately implicated in cerebral aneurysm formation. The interactions between different myeloid subsets and the contributions of macrophage phenotypes in these lesions over time are not known. The purpose of the study was to examine macrophage phenotypic changes in cerebral aneurysms. METHODS: We induced aneurysm formation in C57BL/6 mice and quantified contributions of M1 and M2 macrophages in aneurysm specimens with or without neutrophil blockade...
February 14, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28184003/a-survey-of-intracranial-aneurysm-treatment-practices-among-united-states-physicians
#15
Kyle M Fargen, Hector E Soriano-Baron, Julia T Rushing, William Mack, J Mocco, Felipe Albuquerque, Andrew F Ducruet, Maxim Mokin, Italo Linfante, Stacey Q Wolfe, John A Wilson, Joshua A Hirsch
BACKGROUND: Recent surveys have failed to examine cerebrovascular aneurysm treatment practices among US physicians. OBJECTIVE: To survey physicians who are actively involved in the care of patients with cerebrovascular aneurysms to determine current aneurysm treatment preferences. METHODS: A 25-question SurveyMonkey online survey was designed and distributed electronically to members of the Society of NeuroInterventional Surgery, Society of Vascular and Interventional Neurology, and the American Association of Neurological Surgeons/Congress of Neurological Surgeons Combined Cerebrovascular Section...
February 9, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28184002/renal-cell-carcinoma-metastasis-involving-vertebral-hemangioma-dual-percutaneous-treatment-by-navigational-bipolar-radiofrequency-ablation-and-high-viscosity-cement-vertebroplasty
#16
Jean-Baptiste Zerlauth, Reto Meuli, Vincent Dunet
The case of a 70-year-old woman with progressive renal cell carcinoma (RCC) metastatic invasion of a L3 vertebral hemangioma treated by dual percutaneous radiofrequency ablation (RFA) and vertebroplasty is reported. The patient was surgically treated for RCC in 2001. Chemotherapy and immunotherapy were introduced in 2013 for ovarian, bladder and cerebral metastatic disease. An asymptomatic L3 benign hemangioma was noticed at this time. One-year CT and MRI follow-up studies demonstrated a nodular isolated soft tissue lesion involving the anterior edge of the hemangioma...
February 9, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28179543/flow-diverter-implantation-in-a-rat-model-of-sidewall-aneurysm-a-feasibility-study
#17
René Aquarius, Debby Smits, Matthew J Gounis, William P J Leenders, Joost de Vries
BACKGROUND: More challenging animal models are needed to elucidate the efficacy of flow diverter (FD) designs and the mechanisms behind observed complications. The purpose of this study is to demonstrate the feasibility of implanting a FD in a sidewall aneurysm rat model. METHODS: An end-to-side anastomosis was created in the abdominal aorta of 36 rats using a decellularized donor pouch. A FD was subsequently implanted. RESULTS: After up to 3 months of follow-up, we observed that rats displayed normal growth and behavior...
February 8, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28179542/surgical-technique-for-venous-patch-aneurysms-with-no-neck-in-a-rabbit-model
#18
Kilian Greim-Kuczewski, Alejandro Berenstein, Sebastian Kis, Anna Hauser, Monika Killer-Oberpfalzer
BACKGROUND: Animal experimental studies are crucial for the development of endovascular devices and embolization techniques for intracranial aneurysms. The aim of the study was to describe the surgical creation technique for an aneurysm with a dilated shape and no definable aneurysm neck. The model should be reproducible in size and shape and stay patent over a long period of time. It should constitute a challenge to endovascular therapy and provide a valuable testing environment for new endovascular devices and techniques...
February 8, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28153852/effect-of-heparin-on-secondary-brain-injury-in-patients-with-subarachnoid-hemorrhage-an-additional-h-therapy-in-vasospasm-treatment
#19
REVIEW
Markus Bruder, Sae-Yeon Won, Sepide Kashefiolasl, Marlies Wagner, Nina Brawanski, Nazife Dinc, Volker Seifert, Juergen Konczalla
OBJECTIVE: Secondary brain injury leads to high morbidity and mortality rates in patients with aneurysmal subarachnoid hemorrhage (aSAH). However, evidence-based treatment strategies are sparse. Since heparin has various effects on neuroinflammation, microthromboembolism and vasomotor function, our objective was to determine whether heparin can be used as a multitarget prophylactic agent to ameliorate morbidity in SAH. METHODS: Between June 1999 and December 2014, 718 patients received endovascular treatment after rupture of an intracranial aneurysm at our institution; 197 of them were treated with continuous unfractionated heparin in therapeutic dosages after the endovascular procedure...
February 2, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28151414/basilar-stroke-from-a-persistent-hypoglossal-artery
#20
Alfred P See, Jacob F Baranoski, Bruno C Flores, Andrew Ducruet, Felipe C Albuquerque
Occlusion of the basilar artery can be treated with endovascular thrombectomy, although the results have not been well studied. Persistent fetal cerebrovascular anatomy can lead to unusual presentation of carotid atherosclerotic disease and can be a barrier to successful mechanical thrombectomy if not recognized. This case presents a rare persistent carotico-basilar anastomosis which resulted in basilar occlusion via the persistent hypoglossal artery and coincident absence of contralateral vertebral arterial access due to a left vertebral artery terminating in the left posterior inferior cerebellar artery...
February 1, 2017: Journal of Neurointerventional Surgery
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