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Journal of Neurointerventional Surgery

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https://www.readbyqxmd.com/read/28082448/congenital-anomaly-of-the-posterior-arch-of-the-atlas-a-rare-risk-factor-for-posterior-circulation-stroke
#1
Zhi-Yuan Ouyang, Min-Jian Qiu, Zhe Zhao, Xiao-Bing Wu, Lu-Sha Tong
We report an extremely rare case involving a posterior arch anomaly of the atlas, causing a vertebral artery dissection (VAD) induced posterior circulation stroke. A 16-year-old girl was admitted to hospital because of new onset dizziness. VAD related multiple infarction in the posterior circulation was revealed. The congenital posterior arch anomaly of the atlas, along with instability of the atlantoaxial joint, were discovered accidentally during follow-up. This is the first case of ischemic stroke related to atlantal posterior arch aplasia and atlantoaxial instability...
January 12, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28082447/a-pilot-study-and-novel-angiographic-classification-for-superior-sagittal-sinus-stenting-in-patients-with-non-thrombotic-intracranial-venous-occlusive-disease
#2
Daniel M S Raper, Thomas J Buell, Dale Ding, I Jonathan Pomeraniec, R Webster Crowley, Kenneth C Liu
OBJECTIVE: Safety and efficacy of superior sagittal sinus (SSS) stenting for non-thrombotic intracranial venous occlusive disease (VOD) is unknown. The aim of this retrospective cohort study is to evaluate outcomes after SSS stenting. METHODS: We evaluated an institutional database to identify patients who underwent SSS stenting. Radiographic and clinical outcomes were analyzed and a novel angiographic classification of the SSS was proposed. RESULTS: We identified 19 patients; 42% developed SSS stenosis after transverse sinus stenting...
January 12, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28082446/elevated-mean-platelet-volume-is-associated-with-poor-outcome-after-mechanical-thrombectomy
#3
Feng Peng, Weihong Zheng, Fengli Li, Jinjing Wang, Zhaoji Liu, Xingyu Chen, Lulu Xiao, Wen Sun, Xinfeng Liu
BACKGROUND: Elevated mean platelet volume (MPV), indicating higher platelet activity, could be a predictor of prognosis in patients with acute ischemic stroke receiving medical therapy. OBJECTIVE: To investigate the relationship between MPV and functional outcome in patients with acute anterior circulation stroke 3 months after undergoing mechanical thrombectomy (MT). METHODS: A total of 153 consecutive patients with acute stroke following MT, in two separate stroke centers, were enrolled between May 2013 and March 2016...
January 12, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28077523/autologous-adipose-derived-mesenchymal-stem-cells-improve-healing-of-coiled-experimental-saccular-aneurysms-an-angiographic-and-histopathological-study
#4
Aymeric Rouchaud, Waleed Brinjikji, Daying Dai, Yong-Hong Ding, Tina Gunderson, Dana Schroeder, Laurent Spelle, David F Kallmes, Ramanathan Kadirvel
PURPOSE: Long-term occlusion of coiled aneurysms frequently fails, probably because of poor intrasaccular healing and inadequate endothelialization across the aneurysm neck. The purpose of this study was to determine if attachment of autologous mesenchymal stem cells (MSCs) to platinum coils would improve the healing response in an elastase-induced aneurysm model in rabbits. MATERIALS AND METHODS: With approval from the institutional animal care and use committee, aneurysms were created in rabbits and embolized with control platinum coils (Axium; Medtronic) (n=6) or coils seeded ex vivo with autologous adipose-tissue MSCs (n=7)...
January 11, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28073989/patency-of-the-vein-of-labb%C3%A3-after-venous-stenting-of-the-transverse-and-sigmoid-sinuses
#5
Daniel M S Raper, Dale Ding, Ching-Jen Chen, Thomas J Buell, R Webster Crowley, Kenneth C Liu
BACKGROUND: Venous sinus stenting is an emerging treatment for patients with idiopathic intracranial hypertension and evidence of venous stenosis. Stents placed across the transverse and sigmoid sinuses often cover the vein of Labbé (VOL), a major anastomotic vein draining the cerebral hemisphere. The patency of the VOL after stenting and its clinical implications are poorly understood. METHODS: A retrospective analysis was performed of a prospectively collected database of patients undergoing venous sinus stenting...
January 10, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28062806/intercostal-artery-pseudoaneurysm-with-spontaneous-resolution-in-the-setting-of-an-artery-of-adamkiewicz
#6
Aanchal Agarwal, Yuranga Weerakkody, Martin Marshall, Tejinder Singh
We report an extremely unique and previously unreported case of a pseudoaneurysm arising from an intercostal artery that also gave origin to the artery of Adamkiewicz. Due to the potential risk of losing the artery of Adamkiewicz, a conservative approach was indicated. On short interval follow-up imaging, the pseudoaneurysm and associated hematoma spontaneously resolved with preservation of the intercostal artery. We performed a literature review of the natural course of pseudoaneurysm as well as their occurrence in the intercostal arteries...
January 6, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28062805/intravenous-thrombolysis-before-endovascular-therapy-for-large-vessel-strokes-can-lead-to-significantly-higher-hospital-costs-without-improving-outcomes
#7
Ansaar T Rai, SoHyun Boo, Chelsea Buseman, Amelia K Adcock, Abdul R Tarabishy, Maurice M Miller, Thomas D Roberts, Jennifer R Domico, Jeffrey S Carpenter
BACKGROUND: Limited efficacy of IV recombinant tissue plasminogen activator (rt-PA) for large vessel occlusions (LVO) raises doubts about its utility prior to endovascular therapy. PURPOSE: To compare outcomes and hospital costs for anterior circulation LVOs (middle cerebral artery, internal carotid artery terminus (ICA-T)) treated with either primary endovascular therapy alone (EV-Only) or bridging therapy (IV+EV)). METHODS: A single-center retrospective analysis was performed...
January 6, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28062804/delayed-enhancing-lesions-after-coil-embolization-of-aneurysms-clinical-experience-and-benchtop-analyses
#8
Se Won Oh, Na Young Shin, Ho-Joon Lee, Byung Moon Kim, Dong Joon Kim
BACKGROUND: Foreign body emboli during endovascular treatment (EVT) may cause delayed enhancing lesions (DELs). OBJECTIVE: To report our experiences of this complication in patients treated for cerebral aneurysms and to investigate the cause of the lesions by benchtop analyses. METHODS: Three patients with DELs on MRI after EVT were retrospectively investigated. Unusual friction had occurred in the midst of coil delivery in two patients. The imaging findings, cause of the lesions due to the devices used for the procedure, treatment, and follow-up results were assessed...
January 6, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28062803/posterior-circulation-perforator-aneurysms-a-proposed-management-algorithm
#9
Thomas J Buell, Dale Ding, Daniel M S Raper, Ching-Jen Chen, Harry R Hixson, R Webster Crowley, Avery J Evans, Mary E Jensen, Kenneth C Liu
INTRODUCTION: Subarachnoid hemorrhage (SAH) from posterior circulation perforator aneurysms (PCPAs) is rare and its natural history is unknown. Diagnosis may be difficult, acute management is poorly defined, and long-term recurrent SAH rates and clinical outcome data are lacking. METHODS: We searched our institution's records for cases of PCPA rupture and analyzed patient demographics, Hunt and Hess (HH) grades, diagnostic imaging, management, and clinical outcomes...
January 6, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28062802/moving-target-transient-rotational-stenosis-precipitating-jugular-bow-hunter-s-syndrome
#10
Waleed Brinjikji, Christopher S Graffeo, Avital Perry, Terence Zimmerman, Jeffrey R Janus, Pearce P Morris, Gregory D Cascino, Giuseppe Lanzino
A 60-year-old man presented with a 10-month history of of stereotypical spells characterized by vertigo, tinnitus, blurred vision, left hemibody numbness, and occasional syncope, precipitated by turning his head leftwards. Cerebral angiography and CT angiography of the head and neck with provocative maneuvers did not demonstrate vertebral artery narrowing. However, there was narrowing of the left internal jugular vein due to extrinsic compression from the sternocleidomastoid with leftward head rotation in the setting of hypoplasia of the right internal jugular vein...
January 6, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28062801/wire-escalation-in-emergent-revascularization-procedures-of-internal-carotid-artery-occlusions-the-use-of-high-tip-stiffness-microguidewires
#11
José E Cohen, Ronen R Leker, John M Gomori, Eyal Itshayek
OBJECTIVE: We examined the usefulness and safety of high tip stiffness cardiac microguidewires in the endovascular revascularization of selected cases of internal carotid artery (ICA) occlusion. METHODS: Files of patients with acute ischemic symptoms due to ICA occlusions managed from August 2010 to August 2016 by urgent endovascular revascularization were retrospectively reviewed with a waiver of informed consent. Cases where there was escalation to stiff tipped cardiovascular microguidewires after at least two failed attempts to cross the carotid occlusion with standard neuro-microguidewires were included...
January 6, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28044009/clot-friction-variation-with-fibrin-content-implications-for-resistance-to-thrombectomy
#12
Gillian M Gunning, Kevin McArdle, Mahmood Mirza, Sharon Duffy, Michael Gilvarry, Patrick A Brouwer
BACKGROUND: Despite significant advancements in the procedural efficacy of mechanical thrombectomy in patients with ischemic stroke in recent years, there still remains a portion of the population that does not achieve good recanalization. The reasons for this may be varied. We hypothesized that static friction between the clot and the vessel, or catheter wall might contribute to the difficulty in removing the clot. OBJECTIVE: To determine if there is a relationship between clot composition and the resistance to sliding (friction) which might contribute to resistance to clot removal...
January 2, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28031354/intra-arterial-nitroglycerin-as-directed-acute-treatment-in-experimental-ischemic-stroke
#13
Michael E Maniskas, Jill M Roberts, Rebecca Trueman, Annastazia E Learoyd, Amanda Gorman, Justin F Fraser, Gregory J Bix
BACKGROUND: Nitroglycerin (also known as glyceryl trinitrate (GTN)), a vasodilator best known for treatment of ischemic heart disease, has also been investigated for its potential therapeutic benefit in ischemic stroke. The completed Efficacy of Nitric Oxide in Stroke trial suggested that GTN has therapeutic benefit with acute (within 6 hours) transdermal systemic sustained release therapy. OBJECTIVE: To examine an alternative use of GTN as an acute therapy for ischemic stroke following successful recanalization...
December 28, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27998957/multicenter-experience-with-the-new-sofia-plus-catheter-as-a-primary-local-aspiration-catheter-for-acute-stroke-thrombectomy
#14
M A Möhlenbruch, C Kabbasch, A Kowoll, E Broussalis, M Sonnberger, M Müller, M Wiesmann, J Trenkler, M Killer-Oberpfalzer, W Weber, A Mpotsaris, M Bendszus, S Stampfl
INTRODUCTION: The direct aspiration first pass technique (ADAPT) has been introduced as a rapid and safe endovascular treatment strategy in patients with ischemic stroke. OBJECTIVE: To determine the technical feasibility, safety, and functional outcome with ADAPT using the new large-bore 6F SOFIA Plus catheter. METHODS: A retrospective analysis of prospectively collected data from six university hospitals was performed. The following parameters of all acute stroke procedures (June 2015- January 2016) using the SOFIA Plus catheter were analyzed: accessibility of the thrombus with the catheter, recanalization success (Thrombolysis in Cerebral Infarction ≥2b), time to recanalization, procedure-related complications...
December 20, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27998956/mechanical-thrombectomy-for-basilar-artery-thrombosis-a-comparison-of-outcomes-with-anterior-circulation-occlusions
#15
María Alonso de Leciñana, Michal M Kawiorski, Álvaro Ximénez-Carrillo, Antonio Cruz-Culebras, Andrés García-Pastor, Patricia Martínez-Sánchez, Andrés Fernández-Prieto, José Luis Caniego, Jose Carlos Méndez, Gustavo Zapata-Wainberg, Alicia De Felipe-Mimbrera, Fernando Díaz-Otero, Gerardo Ruiz-Ares, Remedios Frutos, Eduardo Bárcena-Ruiz, Eduardo Fandiño, Begoña Marín, José Vivancos, Jaime Masjuan, Antonio Gil-Nuñez, Exuperio Díez-Tejedor, Blanca Fuentes
BACKGROUND AND PURPOSE: The benefits of mechanical thrombectomy (MT) in basilar artery occlusions (BAO) have not been explored in recent clinical trials. We compared outcomes and procedural complications of MT in BAO with anterior circulation occlusions. METHODS: Data from the Madrid Stroke Network multicenter prospective registry were analyzed, including baseline characteristics, procedure times, procedural complications, symptomatic intracranial hemorrhage (SICH), modified Rankin Scale (mRS), and mortality at 3 months...
December 20, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27998955/latest-generation-of-flat-detector-ct-as-a-peri-interventional-diagnostic-tool-a-comparative-study-with-multidetector-ct
#16
Johanna Rosemarie Leyhe, Ioannis Tsogkas, Amélie Carolina Hesse, Daniel Behme, Katharina Schregel, Ismini Papageorgiou, Jan Liman, Michael Knauth, Marios-Nikos Psychogios
BACKGROUND AND PURPOSE: Flat detector CT (FDCT) has been used as a peri-interventional diagnostic tool in numerous studies with mixed results regarding image quality and detection of intracranial lesions. We compared the diagnostic aspects of the latest generation FDCT with standard multidetector CT (MDCT). MATERIALS AND METHODS: 102 patients were included in our retrospective study. All patients had undergone interventional procedures. FDCT was acquired peri-interventionally and compared with postinterventional MDCT regarding depiction of ventricular/subarachnoidal spaces, detection of intracranial hemorrhage, and delineation of ischemic lesions using an ordinal scale...
December 20, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27986848/continuous-aspiration-prior-to-intracranial-vascular-embolectomy-captive-a-technique-which-improves-outcomes
#17
Ryan A McTaggart, Eric L Tung, Shadi Yaghi, Shawna M Cutting, Morgan Hemendinger, Heather I Gale, Grayson L Baird, Richard A Haas, Mahesh V Jayaraman
BACKGROUND: Modern stent retriever-based embolectomy for patients with emergent large vessel occlusion improves outcomes. Techniques aimed at achieving higher rates of complete recanalization would benefit patients. OBJECTIVE: To evaluate the clinical impact of an embolectomy technique focused on continuous aspiration prior to intracranial vascular embolectomy (CAPTIVE). METHODS: A retrospective review was performed of 95 consecutive patients with intracranial internal carotid artery or M1 segment middle cerebral artery occlusion treated with stent retriever-based thrombectomy over an 11-month period...
December 16, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27986847/mri-audit-of-complications-in-intracranial-stenosis-treated-with-wingspan-device
#18
Leonard L L Yeo, Y M Wu, Y L Chen, C H Yeh, T H Lee, H F Wong
OBJECTIVES: To evaluate the safety and efficacy of the Wingspan device for the treatment of symptomatic intracranial atherosclerotic stenosis (ICAS). METHODS: We audited a prospective ongoing database of consecutive patients who received Wingspan stenting between January 2013 and December 2015. All patients underwent MRI to audit any complications during the early follow-up period. We focused on the clinical demographics, lesion characteristics, treatment results, and periprocedural complications...
December 16, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27986846/hospital-transfer-associated-with-increased-mortality-after-endovascular-revascularization-for-acute-ischemic-stroke
#19
Lorenzo Rinaldo, Waleed Brinjikji, Brandon A McCutcheon, Mohamad Bydon, Harry Cloft, David F Kallmes, Alejandro A Rabinstein
BACKGROUND: Patients with an acute ischemic stroke (AIS) due to large vessel occlusion often require transfer to an endovascular center for treatment. OBJECTIVE: To assess the effect of hospital transfer on outcomes after endovascular revascularization. METHODS: Outcomes of endovascular revascularization were compared between directly admitted and transferred patients using data from a national database and our own institution. RESULTS: 118 institutions within the database reported outcomes of 8533 inpatient admissions for endovascular treatment of AIS...
December 16, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27974375/catch-plus-thrombectomy-device-in-acute-stroke-initial-evaluation
#20
Ahmet Peker, Ethem Murat Arsava, Mehmet Akif Topçuoğlu, Anıl Arat
OBJECTIVE: To report our initial experience with the Catch Plus thrombectomy device (CPD) in patients with acute ischemic stroke (AIS). MATERIALS AND METHODS: We retrospectively evaluated the procedural variables as well as the clinical and angiographic outcomes of patients with acute occlusion of a major intracranial artery in the anterior circulation who were treated with CPD at our center. Baseline characteristics (gender, age, comorbidities, cardiovascular risk factors, National Institutes of Health Stroke Scale (NIHSS) score, and vessel occlusion sites) of these patients were recorded...
December 14, 2016: Journal of Neurointerventional Surgery
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