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Journal of Neurointerventional Surgery

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https://www.readbyqxmd.com/read/29151041/assessment-of-thrombus-length-in-acute-ischemic-stroke-by-post-contrast-magnetic-resonance-angiography
#1
Ramanan Ganeshan, Alexander H Nave, Jan F Scheitz, Katharina A Schindlbeck, Karl Georg Haeusler, Christian H Nolte, Kersten Villringer, Jochen B Fiebach
OBJECTIVES: Post-contrast magnetic resonance angiography (PC-MRA) enables visualization of vessel segments distal to an intra-arterial thrombus in acute ischemic stroke. We hypothesized that PC-MRA also allows clot length measurement in different intracranial vessels. METHODS: Patients with MRI-confirmed ischemic stroke and intracranial artery occlusion within 24 hours of symptom onset were prospectively evaluated. PC-MRA was added to a standard stroke MRI protocol...
November 18, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29146831/stent-assisted-coiling-of-cerebral-aneurysms-a-single-center-clinical-and-angiographic-analysis
#2
Jun Wang, Jan Vargas, Alejandro Spiotta, Imran Chaudry, Raymond D Turner, Jonathan Lena, Aquilla Turk
OBJECTIVE: This study retrospectively compared the clinical and angiographic outcomes of treating cerebral aneurysms with Neuroform (NEU), Enterprise (EP), and Low-profile Visualized Intraluminal Support (LVIS/LVIS Jr) stents. MATERIALS AND METHODS: We conducted a retrospective analysis of a procedural database. All aneurysm procedures using any of the three types of self-expanding nitinol stents (NEU, EP and LVIS/LVIS Jr) were included. Intra-procedure complications, post-procedure complications, and angiographic results (Raymond-Roy grade scale, RRGS) were analyzed retrospectively...
November 16, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29146830/mechanical-thrombectomy-performs-similarly-in-real-world-practice-a-2016-nationwide-study-from-the-czech-republic
#3
Ondrej Volny, Antonin Krajina, Silvie Belaskova, Michal Bar, Petra Cimflova, Roman Herzig, Daniel Sanak, Ales Tomek, Martin Köcher, Miloslav Rocek, Radek Padr, Filip Cihlar, Miroslava Nevsimalova, Lubomir Jurak, Roman Havlicek, Martin Kovar, Petr Sevcik, Vladimir Rohan, Jan Fiksa, Bijoy K Menon, Robert Mikulik
BACKGROUND: Randomized clinical trials have proven mechanical thrombectomy (MT) to be a highly effective and safe treatment in acute stroke. The purpose of this study was to compare neurothrombectomy data from the Czech Republic (CR) with data from the HERMES meta-analysis. METHODS: Available nationwide data for the CR from 2016 from the Safe Implementation of Treatments in Stroke-Thrombectomy (SITS-TBY) registry for patients with terminal internal carotid artery (ICA) and/or middle cerebral artery (MCA) occlusions were compared with data from HERMES...
November 16, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29146829/is-bridging-therapy-still-required-in-stroke-due-to-carotid-artery-terminus-occlusions
#4
Romain Bourcier, Pierre-Louis Alexandre, François Eugène, Béatrice Delasalle-Guyomarch, Benoit Guillon, Basile Kerleroux, Suzana Saleme, Gaultier Marnat, Samy Boucebci, Mahmood Mirza, Jean-Christophe Ferré, Chrysanthi Papagiannaki, Hubert Desal
INTRODUCTION: Studies comparing endovascular stroke treatment using mechanical thrombectomy (MT) with or without prior IV tissue plasminogen activator (tPa) have included only 30% of internal carotid artery terminus occlusions (ICA-O), a known predictor of recanalization failure with IV tPa. OBJECTIVE: To carry out a retrospective multicenter analysis of prospectively collected data of consecutive patients to investigate the impact of intravenous thrombolysis on ICA-O by comparing patients treated with MT alone or bridging therapy (BT)...
November 16, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29146828/john-allcock-and-a-brief-history-of-allcock-s-test
#5
LETTER
Visish M Srinivasan, Michael George Zaki Ghali, Peter Kan
No abstract text is available yet for this article.
November 16, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29127197/communicating-malapposition-of-flow-diverters-assessed-with-optical-coherence-tomography-correlates-with-delayed-aneurysm-occlusion
#6
Robert M King, Olivia W Brooks, Erin T Langan, Jildaz Caroff, Frédéric Clarençon, Takamitsu Tamura, John Michael Wainwright, Matthew J Gounis, Miklós Marosfői, Ajit S Puri
BACKGROUND: Optical coherence tomography (OCT) is a high resolution intravascular imaging method that allows visualization of flow diverter struts and the vessel wall. In this study, malapposition of the flow diverter that continues into the neck of the aneurysm, named communicating malapposition (CM), was investigated as a potential factor for delayed aneurysm healing. METHODS: 40 New Zealand White rabbits underwent elastase induced aneurysm creation, and were subsequently assigned to one of four treatment groups based on flow diverter type and administration of antiplatelet therapy...
November 10, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29127196/mechanical-thrombectomy-for-acute-ischemic-stroke-with-occlusion-of-the-m2-segment-of-the-middle-cerebral-artery-a-meta-analysis
#7
Hamidreza Saber, Sandra Narayanan, Mohan Palla, Jeffrey L Saver, Raul G Nogueira, Albert J Yoo, Sunil A Sheth
BACKGROUND: Endovascular thrombectomy has demonstrated benefit for patients with acute ischemic stroke from proximal large vessel occlusion. However, limited evidence is available from recent randomized trials on the role of thrombectomy for M2 segment occlusions of the middle cerebral artery (MCA). METHODS: We conducted a systematic review and meta-analysis to investigate clinical and radiographic outcomes, rates of hemorrhagic complications, and mortality after M2 occlusion thrombectomy using modern devices, and compared these outcomes against patients with M1 occlusions...
November 10, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29127195/microcatheter-contrast-injection-in-stent-retriever-neurothrombectomy-is-safe-and-useful-insights-from-swift-prime
#8
Radoslav Raychev, Reza Jahan, Jeffrey L Saver, Raul G Nogueira, Mayank Goyal, Vitor M Pereira, Elad Levy, Dileep R Yavagal, Christophe Cognard, David Liebeskind
Microcatheter contrast injection (MCI) prior to stent retriever deployment for the treatment of acute ischemic stroke may be useful for evaluation of distal anatomy and flow patterns beyond the occlusion. However, prior data from intra-arterialthrombolysis suggested that MCI increases the risk of intracranial hemorrhage (ICH). The safety and utility of MCI has not been investigated in the setting of thrombectomy. METHODS: We analyzed the Solitaire With the Intention For Thrombectomy as Primary Endovascular Treatment (SWIFT PRIME) trial to correlate pre-intervention MCI flow with collateral flow, and to investigate its impact on ICH and clinical outcome after thrombectomy with the Solitaire device...
November 10, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29127194/dump-the-pump-manual-aspiration-thrombectomy-mat-with-a-syringe-is-technically-effective-expeditious-and-cost-efficient
#9
Bradley A Gross, Ashutosh P Jadhav, Tudor G Jovin, Brian Thomas Jankowitz
INTRODUCTION: Syringe aspiration for manual aspiration thrombectomy (MAT) is a cost- and time-efficient alternative to an aspiration pump with likely similar efficacy. It is counterintuitive to expect the pump to perform better than direct vacuum with a syringe, as the pump must deliver vacuum additionally through a canister and meters of tubing. OBJECTIVE: To present in vitro and clinical results of MAT with a syringe. METHODS: An in vitro analysis was performed comparing vacuum pressures generated by syringe aspiration and with pump aspiration...
November 10, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29101306/diagnostic-accuracy-of-emergency-ct-angiography-for-presumed-tandem-internal-carotid-artery-occlusion-before-acute-endovascular-therapy
#10
Marcelo Rocha, William T Delfyett, Vikas Agarwal, Amin Aghaebrahim, Ashutosh Jadhav, Tudor G Jovin
BACKGROUND: Extracranial internal carotid artery (ICA) occlusion can be overestimated on emergent single phase CT angiography (CTA) of stroke patients with isolated intracranial ICA occlusion. We aimed to measure the ability of identifying the extracranial site of presumed tandem ICA occlusions on pre-procedural CTA relative to catheter angiography during acute endovascular stroke therapy. METHODS: Retrospective study of patients with intracranial ICA occlusion, with or without extracranial ICA occlusion, who underwent single phase CTA before acute endovascular treatment...
November 3, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29089416/voxel-based-analysis-of-recurrence-dynamics-in-intracranial-aneurysms-after-coiling
#11
Marielle Ernst, Anika Buchholz, Romain Bourcier, Hubert Desal, Pierre-Yves Le Floch, Markus Möhlenbruch, Martin Bendszus, Jens Fiehler
BACKGROUND: Understanding aneurysm growth is critical for the appropriate follow-up of patients after coil embolization and the need for retreatment. The purpose of the study was to stratify the growth dynamics of aneurysm recurrences after coiling by volumetric analysis and to determine predictive factors for aneurysm recurrences. METHODS: Source images of follow-up three-dimensional time of flight MR angiography (ToF-MRA) scans were compared with the first post-interventional ToF-MRA scan and analyzed for residual flow after co-registration using ANALYZE-software...
October 31, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29089415/periprocedural-heparin-use-in-acute-ischemic-stroke-endovascular-therapy-the-trevo-2-trial
#12
Melanie J Winningham, Diogo C Haussen, Raul G Nogueira, David S Liebeskind, Wade S Smith, Helmi L Lutsep, Tudor G Jovin, Bin Xiang, Fadi Nahab
BACKGROUND: The use of periprocedural heparin has previously been reported to be safe and potentially beneficial during thrombectomy with older generation devices. We aimed to evaluate the safety and clinical outcomes of heparin use in the stent retriever era. METHODS: A post hoc analysis of the TREVO 2 trial was performed comparing baseline characteristics and clinical outcomes between patients who received (HEP+) and those who did not receive periprocedural heparin (HEP-) while undergoing MERCI or TREVO clot retrieval...
October 31, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29089414/flow-diversion-for-anterior-choroidal-artery-acha-aneurysms-a-multi-institutional-experience
#13
Visish M Srinivasan, Michael George Zaki Ghali, Jacob Cherian, Maxim Mokin, Ajit S Puri, Ramesh Grandhi, Stephen R Chen, Jeremiah N Johnson, Peter Kan
BACKGROUND: Anterior choroidal artery (AChA) aneurysms represent a small subset of cerebral aneurysms. The Pipeline Embolization Device (PED) has been successfully applied to various aneurysms of the supraclinoid internal carotid artery (ICA). The treatment of these aneurysms requires special attention due to the eloquent territory supplied by the AChA. We report the largest and first dedicated series of flow diversion treatment of AChA aneurysms. METHODS: Four institutional neurointerventional databases were reviewed for cases of intracranial aneurysms treated with PED...
October 31, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29079663/favorable-revascularization-therapy-in-patients-with-aspects-%C3%A2-5-on-dwi-in-anterior-circulation-stroke
#14
Isabelle Mourand, Eitan Abergel, Daniel Mantilla, Xavier Ayrignac, Tzvika Sacagiu, Omer Faruk Eker, Gregory Gascou, Cyril Dargazanli, Carlos Riquelme, Marinette Moynier, Alain Bonafé, Caroline Arquizan, Vincent Costalat
BACKGROUND: A low baseline Alberta Stroke Programme Early CT Score (ASPECTS) is strongly associated with low rates of favorable outcome in patients with acute stroke. OBJECTIVE: To evaluate the efficacy and safety of revascularization therapy in patient with ASPECTS ≤5 in anterior circulation infarct. METHODS: We retrospectively analyzed 108 consecutive patients presenting low ASPECTS on diffusion-weighted imaging. Sixty patients were treated by mechanical thrombectomy, including 34 patients who received simultaneously intravenous thrombolysis...
October 27, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29079662/endovascular-treatment-for-cerebral-vasospasm-following-aneurysmal-subarachnoid-hemorrhage-predictors-of-outcome-and-retreatment
#15
Jennifer D Sokolowski, Ching-Jen Chen, Dale Ding, Thomas J Buell, Daniel M Raper, Natasha Ironside, Davis G Taylor, Robert M Starke, Kenneth Liu
OBJECTIVE: Although endovascular therapy has been widely adopted for the treatment of cerebral vasospasm after aneurysmal subarachnoid hemorrhage (aSAH), its effect on clinical outcomes remains incompletely understood. The aims of this retrospective cohort study are to evaluate the outcomes of endovascular intervention for post-aSAH vasospasm and identify predictors of functional independence at discharge and repeat endovascular vasospasm treatment. METHODS: We assessed the baseline and outcomes data for patients with aSAH who underwent endovascular vasospasm treatment at our institution, including intra-arterial (IA) vasodilator infusion and angioplasty...
October 27, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29054914/flow-diversion-for-the-treatment-of-posterior-inferior-cerebellar-artery-aneurysms-a-novel-classification-and-strategies
#16
Visish M Srinivasan, Michael George Zaki Ghali, Oleg E Reznik, Jacob Cherian, Maxim Mokin, Travis M Dumont, John R Gaughen, Ramesh Grandhi, Ajit S Puri, Stephen R Chen, Jeremiah N Johnson, Peter Kan
BACKGROUND: The pipeline embolization device (PED) is frequently used in the treatment of anterior circulation aneurysms, especially around the carotid siphon, with generally excellent results. However, treatment of posterior inferior cerebellar artery (PICA) aneurysms with flow diversion (FD) has not been specifically described or discussed. While there are reports of treating PICA aneurysms using placement of FD stents in the vertebral artery, there are no reports of treating these lesions by placement of flow diverting stents in the PICA vessel itself...
October 20, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29054913/treatment-of-recurrent-aneurysms-using-the-woven-endobridge-web-anatomical-and-clinical-results
#17
Matthias Gawlitza, Sebastien Soize, Anne-Christine Januel, Cristian Mihalea, Georgios-Emmanouil Metaxas, Christophe Cognard, Laurent Pierot
BACKGROUND: The safety and efficacy of the Woven EndoBridge (WEB) for the treatment of naïve intracranial aneurysms has been confirmed. PURPOSE: To analyze the safety and efficacy of the WEB in the treatment of recurrent aneurysms. METHODS: Anatomical and clinical results in consecutive patients with a recurrent aneurysm, who were treated using the WEB device in two French neurointerventional centers, were evaluated. RESULTS: Seventeen patients with 17 aneurysms were included...
October 20, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29025963/sacral-dural-arteriovenous-fistulas-a-diagnostic-and-therapeutic-challenge-single-centre-experience-of-13-cases-and-review-of-the-literature
#18
Andrea Gioppo, Giuseppe Faragò, Caterina Giannitto, Luigi Caputi, Andrea Saladino, Francesco Acerbi, Elisa Ciceri
BACKGROUND: Sacral dural arteriovenous fistulas (DAVFs) are rare vascular abnormalities of the spine characterised by slowly progressive symptoms that can mimic different myelopathy disorders. OBJECT: To report our single Institution experience with sacral DAVFs. METHODS: We retrospectively reviewed the clinical records of patients admitted from 1 January 2006 to 31 December 2016 with a diagnosis of sacral DAVFs, treated by endovascular embolisation or surgical clipping...
October 12, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29021314/augmented-3d-venous-navigation-for-neuroendovascular-procedures
#19
Raphaël Blanc, Robert Fahed, Pascal Roux, Stanislas Smajda, Gabriele Ciccio, Jean-Philippe Desilles, Hocine Redjem, Mikael Mazighi, Humain Baharvahdat, Michel Piotin
BACKGROUND: Endovascular venous access is increasingly used for the treatment of many cerebrovascular diseases. The quality of venous roadmapping through arterial injection can be problematic because of contrast media dilution, slow flow velocity, and unilateral opacification of the venous system. OBJECTIVE: To describe our experience with the VesselNavigator (Philips Healthcare, Best, The Netherlands) in performing live 3D roadmapping for intracranial venous procedures...
October 11, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29021313/periorbital-arteriovenous-malformations-a-word-of-caution
#20
EDITORIAL
Joseph J Gemmete
No abstract text is available yet for this article.
October 11, 2017: Journal of Neurointerventional Surgery
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