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Pipeline OR flow diverter OR flow diverting OR flow divertion AND aneurysm

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https://www.readbyqxmd.com/read/28108500/ophthalmic-artery-occlusion-after-pipeline-embolization-device-placement-with-reconstitution-of-flow-via-an-endoleak-a-report-of-two-cases
#1
Michael L Adix, Ian A Kaminsky, In Sup Choi
The Pipeline Embolization Device (PED) is a flow diverting stent used in the treatment of a wide variety of intracranial aneurysms. The device differs from traditional stents used in stent-assisted coil embolization in that it has a tighter lattice structure with smaller cell sizes designed specifically to disrupt blood flow into aneurysms rather than only to retain coils within aneurysms. While the PED has been shown to be safe and effective, it has a unique risk profile that includes side branch and perforator vessel occlusion...
January 20, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28104636/fred-flow-diverter-a-study-on-safety-and-efficacy-in-a-consecutive-group-of-50-patients
#2
H Luecking, T Engelhorn, S Lang, P Goelitz, S Kloska, K Roessler, A Doerfler
BACKGROUND AND PURPOSE: Endovascular flow diverters are increasingly used for the treatment of cerebral aneurysms. We assessed the safety and efficacy of the Flow-Redirection Endoluminal Device (FRED) in a consecutive series of 50 patients. MATERIALS AND METHODS: Inclusion criteria were wide-neck, blister-like, or fusiform/dissecting aneurysms independent of size, treated with the FRED between February 2014 and May 2015. Assessment criteria were aneurysm occlusion, manifest ischemic stroke, bleeding, or death...
January 19, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28100649/incidence-of-delivery-wire-recapture-failure-with-the-pipeline-flex-device
#3
Michael A Mooney, Karam Moon, Bradley A Gross, Andrew F Ducruet, Felipe C Albuquerque
BACKGROUND: The Pipeline Flex embolization device has several advantages over the first-generation Pipeline embolization device (Covidien, Dublin, Republic of Ireland). Despite these advantages, we have observed frequent difficulty in recapturing the device's delivery wire. OBJECTIVE: To prospectively document the incidence of failure to recapture the delivery wire. METHODS: We tracked our experience in patients undergoing endovascular treatment with a flow-diverting stent for cerebral aneurysms between 1 May and 30 September 2016...
January 18, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28064352/pipeline-embolization-device-for-the-treatment-of-a-traumatic-intracranial-aneurysm-in-a-child
#4
Felipe Padovani Trivelato, Marco Túlio Salles Rezende, Luiz Venâncio Fonseca, Lucas Eduardo Bonadio, Alexandre Cordeiro Ulhôa, Daniel Giansante Abud
INTRODUCTION: Traumatic intracranial aneurysms in children are rare and may occur as the result of closed or penetrating head trauma. Their natural history seems to be more aggressive. Most traumatic aneurysms have complex shape, tending to have a large neck or even a fusiform morphology. CASE REPORT: We present a case of a traumatic carotid artery aneurysm in a 9-year-old girl that was successfully treated with pipeline embolization device. DISCUSSION: Due to its dissecting nature, wall friability and lack of a substantial neck can make surgical clipping and selective coiling difficult and risky...
January 7, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28057633/compacting-a-single-flow-diverter-versus-overlapping-flow-diverters-for-intracranial-aneurysms-a-computational-study
#5
R J Damiano, V M Tutino, N Paliwal, D Ma, J M Davies, A H Siddiqui, H Meng
BACKGROUND AND PURPOSE: Locally compacting the mesh of a flow diverter by a dynamic push-pull technique can accelerate intracranial aneurysm healing. We asked how this deployment strategy compares with overlapping 2 flow diverters for aneurysmal flow reduction. MATERIALS AND METHODS: Using a high-fidelity virtual stent placement method, we simulated 3 flow-diverter strategies (single noncompacted, 2 overlapped, and single compacted) in 3 aneurysms (fusiform, large saccular, and medium saccular)...
January 5, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28048545/we-de-207a-04-advances-in-radiological-neuro-endovascular-interventional-imaging
#6
S Rudin
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048454/we-de-207a-00-advances-in-image-guided-neurointerventions-clinical-pull-and-technology-push
#7
Jeffrey Siewerdsen, Rebecca Fahrig
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047800/we-de-207a-01-parallels-in-the-evolution-of-x-ray-angiographic-systems-and-devices-used-for-minimally-invasive-endovascular-therapy
#8
C Strother
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047144/we-de-207a-02-advances-in-cone-beam-ct-anatomical-and-functional-imaging-in-angio-suite-to-enable-one-stop-shop-stroke-imaging-workflow
#9
G Chen
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046482/we-de-207a-03-recent-advances-in-devices-used-in-neuro-interventions
#10
M Gounis
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28029187/off-label-uses-for-flow-diversion-in-intracranial-aneurysm-management
#11
Fawaz Al-Mufti, Krishna Amuluru, Gomez Francisco, Vincent Dodson, Mohammad El-Ghanem, Charles J Prestigiacomo, Chirag D Gandhi
Treatment of complex aneurysms using microsurgical and other conventional neuroendovascular techniques remains challenging. As a result, stent- and balloon-assisted coiling are instead performed to treat morphologically complex aneurysms, which include giant, wide-necked, and fusiform aneurysms. While these techniques have had success in treating these complex aneurysms, recanalization rates associated with these techniques are still problematic. In the constant effort to improve the outcome of complex aneurysm treatment, flow-diverting stents (FDSs) have emerged in recent years as the preferred treatment...
December 28, 2016: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28007770/flow-diversion-in-ruptured-intracranial-aneurysms-a-meta-analysis
#12
T P Madaelil, C J Moran, D T Cross, A P Kansagra
BACKGROUND: Flow diversion is now an established technique to treat unruptured intracranial aneurysms not readily amenable to endovascular coil embolization or open microsurgical occlusion. The role of flow-diverting devices in treating ruptured aneurysms is less clear. PURPOSE: To estimate rates of angiographic occlusion and good clinical outcome in patients with ruptured intracranial aneurysms treated with flow-diverting devices. DATA SOURCES: Systematic review of Ovid MEDLINE, PubMed, Cochrane databases, and EMBASE from inception to December 2015 for articles that included ruptured aneurysms treated with flow diversion...
December 22, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28007769/surpass-flow-diverter-for-treatment-of-posterior-circulation-aneurysms
#13
C A Taschner, S Vedantham, J de Vries, A Biondi, J Boogaarts, N Sakai, P Lylyk, I Szikora, S Meckel, H Urbach, P Kan, R Siekmann, J Bernardy, M J Gounis, A K Wakhloo
BACKGROUND AND PURPOSE: Flow diverters for the treatment of posterior circulation aneurysms remain controversial. We aimed to identify factors contributing to outcome measures in patients treated with the Surpass flow diverter for aneurysms in this location. MATERIALS AND METHODS: We conducted an observational study of 53 patients who underwent flow-diverter treatment for posterior circulation aneurysms at 15 centers. Key outcome measures were mortality, complete aneurysm occlusion, and modified Rankin Scale score at follow-up...
December 22, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27979794/middle-cerebral-artery-bifurcation-aneurysms-treated-by-extrasaccular-flow-diverters-midterm-angiographic-evolution-and-clinical-outcome
#14
C Iosif, C Mounayer, K Yavuz, S Saleme, S Geyik, H S Cekirge, I Saatci
BACKGROUND AND PURPOSE: Flow diverters have been increasingly used lately in off-label, distal intracranial aneurysm treatments. Our aim was to evaluate the effectiveness of flow diverters in the treatment of middle cerebral artery bifurcation aneurysms and to analyze midterm angiographic patterns of regional flow modifications for safety and clinical outcomes. MATERIALS AND METHODS: Consecutive patients treated from January 2010 to December 2014 by the authors by using endovascular flow-diverting stents for MCA bifurcation aneurysms were evaluated retrospectively with prospectively maintained data...
December 15, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27977003/single-stage-endovascular-treatment-of-multiple-intracranial-aneurysms-with-combined-endovascular-techniques-is-it-safe-to-treat-all-at-once
#15
Cagatay Andic, Fatih Aydemir, Ozgur Kardes, Murat Gedikoglu, Sule Akin
BACKGROUND AND PURPOSE: Multiple aneurysms have a high reported incidence, but the optimal treatment strategy is not clear. The aim of this study was to evaluate the safety and effectiveness of single-stage endovascular treatment of multiple aneurysms with a combination of various endovascular techniques. MATERIALS AND METHODS: Fifty-three consecutive patients with multiple intracranial aneurysms who underwent single-stage endovascular treatment for ≥2 aneurysms from June 2011 to May 2016 were included in the study...
November 14, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27956519/advancing-marksman-into-contralateral-vertebral-artery-in-the-treatment-of-intradural-vertebral-artery-dissecting-aneurysm-with-pipeline
#16
Yupeng Zhang, Shikai Liang, Chuhan Jiang
Unruptured vertebral arteries dissecting aneurysms have a benign clinical course. The most common symptoms compromise headache, neck pain, dizziness and vomiting. The optimal endovascular treatment option remains controversial. Reconstructive techniques have many advantages over deconstructive ones since the advent of flow diverters such as the Pipeline embolization device (PED). Here, we present a case successfully treated with a PED through a combination of the radial access and advancement of the Marksman catheter into the contralateral vertebral artery due to the special angio-architecture of the patient...
December 12, 2016: Interventional Neuroradiology
https://www.readbyqxmd.com/read/27956518/use-of-self-expanding-stents-for-better-intracranial-flow-diverter-wall-apposition
#17
Anna Luisa Kühn, Ajay K Wakhloo, Matthew J Gounis, Peter Kan, Katyucia de Macedo Rodrigues, J Diego Lozano, Miklos G Marosfoi, Mary Perras, Christopher Brooks, Mary C Howk, David E Rex, Francesco Massari, Ajit S Puri
BACKGROUND: Flow diverter (FD) malapposition is associated with stroke-related complications. We document the use of self-expanding nitinol stents to remove/reduce the ledge of a FD deployed for aneurysm treatment. METHODS: We identified five patients who were treated with the Pipeline embolization device (PED) in conjunction with a Neuroform EZ stent for inadequate wall apposition of the ends of the FD at our institution between May 2014 and July 2015. Among other parameters, angiographic results, cone-beam computed tomography assessment of wall apposition and patient clinical outcome were evaluated...
December 12, 2016: Interventional Neuroradiology
https://www.readbyqxmd.com/read/27942770/management-of-unruptured-saccular-aneurysms-of-the-m1%C3%A2-segment-with-flow-diversion-a%C3%A2-single-centre-experience
#18
Pervinder Bhogal, Rosa Martinez, Oliver Gansladt, Hansjörg Bäzner, Hans Henkes, Marta Aguilar
PURPOSE: The optimal strategy for the treatment of M1 segment aneurysms has not yet been determined as both standard microneurosurgical and endovascular techniques can pose challenges. We sought to determine the efficacy of flow diverting stents to treat small, unruptured aneurysms of the M1 segment. METHODS: We retrospectively reviewed our database of prospectively collected information for all patients treated with flow diversion for an unruptured saccular aneurysm of the middle cerebral artery (MCA) between February 2009 and February 2016...
December 11, 2016: Clinical Neuroradiology
https://www.readbyqxmd.com/read/27932668/quantitative-flow-measurement-after-placing-a-flow-diverter-for-a-distal-internal-carotid-artery-aneurysm
#19
Chien-Wei Chen, Ho-Fai Wong, Yu-Ling Ye, Yao-Liang Chen, Wei-Liang Chen, Chang-Hsien Ou, Yuan-Hsiung Tsai
OBJECTIVES: To evaluate the differences in arterial flow after flow diverter placement using quantitative flow measurements based on digital subtraction angiography (DSA). METHODS: Between November 2013 and November 2015, all patients who had flow diverters placed for distal internal carotid artery (ICA) aneurysms were reviewed. Patients in whom the stent was placed across the ostia of the ophthalmic artery (OphA) and anterior choroidal artery (AChA) were enrolled...
December 8, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27913801/the-pressure-reduction-coefficient-a-new-parameter-to-assess-aneurysmal-blood-stasis-induced-by-flow-diverters-disruptors
#20
Gregory Gascou, Riccardo Ferrara, Dominique Ambard, Mathieu Sanchez, Kyriakos Lobotesis, Franck Jourdan, Vincent Costalat
BACKGROUND AND PURPOSE: Pore density (PD), surface metal coverage (SMC) and the number of wires are all different parameters which can influence the efficacy of a flow disruptor/diverter. Nevertheless, the relative importance of a parameter to induce intra-aneurysmal blood stasis is still poorly evaluated. Therefore, comparison between devices based on a unique value is not reliable. The aim of this study was to propose a new bench top parameter (the pressure reduction coefficient (PRC; ξ)) in order to assess the global haemodynamic effect of each flow diverter/disruptor to slow flow...
December 2, 2016: Interventional Neuroradiology
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