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https://www.readbyqxmd.com/read/28335160/short-and-mid-term-evaluation-of-the-risk-of-persistent-type-ii-endoleak-after-endovascular-treatment-of-an-uncomplicated-aneurysm-of-the-abdominal-aorta-with-the-nellix-%C3%A2-stentgraft-a-french-multicentric-study
#1
Heloise Samba, Alsac Jean-Marc, Robert Martinez, Adrien Kaladji, Pierre Julia, Alain Cardon, Patrick Feugier
No abstract text is available yet for this article.
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28294661/-nellix-new-possibilities-in-the-treatment-of-the-aorto-iliac-aneurysm-our-initial-experiences
#2
László Hidi, Csaba Csobay-Novák, Attila Nemes, Balázs Nemes, Zoltán Oláh, Dániel Pál, Péter Sótonyi
INTRODUCTION: The Endologix developed an aortoiliac stent graft system that is different than the conventional implantation technique (Nellix, EVAS-endovascular aneurysm sealing system). The first implantation in Hungary has been performed in the beginning of 2016 at Heart and Vascular Center. METHODS: Nellix: two endobags surrounding ballon-expandable covered stent (10 mm) with optional length, biocompatible polymer which is able to be injected into the endobags and a procedure-coordinating console...
March 2017: Magyar Sebészet
https://www.readbyqxmd.com/read/28285931/flow-and-wall-shear-stress-characterization-after-endovascular-aneurysm-repair-and-endovascular-aneurysm-sealing-in-an-infrarenal-aneurysm-model
#3
Johannes T Boersen, Erik Groot Jebbink, Michel Versluis, Cornelis H Slump, David N Ku, Jean-Paul P M de Vries, Michel M P J Reijnen
BACKGROUND: Endovascular aneurysm repair (EVAR) with a modular endograft has become the preferred treatment for abdominal aortic aneurysms. A novel concept is endovascular aneurysm sealing (EVAS), consisting of dual endoframes surrounded by polymer-filled endobags. This dual-lumen configuration is different from a bifurcation with a tapered trajectory of the flow lumen into the two limbs and may induce unfavorable flow conditions. These include low and oscillatory wall shear stress (WSS), linked to atherosclerosis, and high shear rates that may result in thrombosis...
March 9, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28097196/chimney-technique-with-nellix-endovascular-aneurysm-sealing-system-in-a-patient-with-single-kidney-and-juxtarenal-abdominal-aortic-aneurysm
#4
Kaspars Kisis, Janis Savlovskis, Marcis Gedins, Natalija Ezite, Edgars Zellans, Dainis Krievins
We present a saccular asymptomatic juxtarenal abdominal aortic aneurysm in a 70-year-old male with a very short left renal artery supplying the only kidney. The case was successfully treated with the Nellix EndoVascular Aneurysm Sealing system combined with a chimney technique.
August 2016: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/28076989/improvement-of-patient-eligibility-with-the-use-of-new-generation-endografts-for-the-treatment-of-abdominal-aortic-aneurysms-a-comparison-study-among-currently-used-endografts-and-literature-review
#5
REVIEW
Nikolaos Kontopodis, George Papadopoulos, Nikolaos Galanakis, Dimitrios Tsetis, Christos V Ioannou
BACKGROUND: Newer generation devices have attempted to accommodate a wider range of aortoiliac anatomies offering endovascular aneurysm repair (EVAR) to more patients with abdominal aortic aneurysms (AAAs). We aim to examine the anatomic suitability for the ultra-low profile Ovation endograft in our AAA patients and to compare them with other contemporary devices. METHODS: 158 consecutive AAA patients treated with EVAR or open surgical repair (OSR) were tested for EVAR eligibility according to the most commonly used endografts' instructions for use...
March 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28027891/ruptured-abdominal-aortic-aneurysm-post-evas-nellix-explantation
#6
M Cherchi, S Camparini
No abstract text is available yet for this article.
December 24, 2016: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27989321/patient-selection-for-endovascular-sac-sealing-of-abdominal-aortic-aneurysm
#7
REVIEW
Robert K Fisher, Francesco Torella, Andrew England, Richard G McWilliams
Endovascular sealing is a developing technique for treatment of abdominal aortic aneurysm that draws on novel concepts utilizing polymer filling of endobags within the aorto-iliac lumen. The morphologic indications and patient selection, while similar to those of endovascular aneurysm repair, differ in some regards. The Instructions for Use for the Nellix sealing device may expand the indications for aneurysm treatment and are closely scrutinized in this article. The authors draw on current evidence and their own experience and opinion in the discussion around appropriate patient selection and its influence on outcomes after endovascular aneurysm sealing...
September 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/27989319/percutaneous-interventions-following-endovascular-aneurysm-sac-sealing-endoleak-embolization-and-limb-related-adverse-events
#8
REVIEW
S Ameli-Renani, R A Morgan
The Nellix endovascular aneurysm sealing system is a novel alternative to conventional endovascular aneurysm repair for aortic aneurysm management using paired balloon-expandable endografts supported by polymer-filled endobags to achieve sealing and anatomic fixation. Part of the promise of endovascular aneurysm sealing is increased resistance to lateral and longitudinal forces and a potential for reduced rates of device-related failures, particularly endoleaks. Initial efficacy data on this device are encouraging, but our knowledge of its associated complications and their management is limited...
September 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/27989318/appearance-of-the-nellix-endoprosthesis-on-postoperative-imaging-implications-for-patient-and-device-surveillance
#9
REVIEW
N J Hilliard, P Hayes, A P Winterbottom
The Nellix stent graft has novel features that influence interpretation of imaging follow-up, in particular, the use of endobags that seal the aneurysm sac. The polymer within the endobags contains a small amount of contrast medium, which causes a predictable temporal change in appearances. Understanding of these features allows correct image evaluation. In this article, we review the appearance of Nellix on computed tomography, ultrasound, magnetic resonance imaging, and plain radiography. We describe the special considerations that are important to consider when reviewing imaging, including endobag position and seal, endobag configuration, endobag and polymer maturation, and endobag gas...
September 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/27989316/treating-iliac-aneurysm-using-the-nellix-endovascular-sac-sealing-system
#10
REVIEW
Marwan Youssef, Sebastian Zerwes, Rudolf Jakob, Fritz Dünschede, Bernhard Dorweiler, Christian F Vahl
As endovascular treatment of abdominal aortic aneurysms has become established, there has been growing focus on treatment of the aneurysmal iliac artery. Isolated, large iliac aneurysms >30 mm pose a risk of rupture, but, in addition, 20% to 30% of abdominal aortic aneurysms are associated with iliac aneurysmal dilatation, which can compromise long-term outcomes. Endovascular solutions are evolving and until recently have utilized standard stent graft technology. The endovascular aortic sealing system was introduced as a new, effective method for the treatment of infrarenal aortic aneurysms...
September 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/27989314/clinical-outcomes-after-nellix-endovascular-aneurysm-sealing
#11
REVIEW
Andrew Holden
The published evidence on clinical outcomes of Nellix Endovascular Aneurysm Sealing for elective abdominal aortic aneurysm repair has confirmed low procedural morbidity and reintervention rate. This early clinical experience with Nellix is encouraging, despite the device and procedural steps being in evolution, and patients being treated outside of the recommended instructions for use. The long-term follow-up of a treated patient cohort is now available and demonstrates low aneurysm-related mortality and morbidity...
September 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/27988156/benchtop-quantification-of-gutter-formation-and-compression-of-chimney-stent-grafts-in-relation-to-renal-flow-in-chimney-endovascular-aneurysm-repair-and-endovascular-aneurysm-sealing-configurations
#12
Johannes T Boersen, Esme J Donselaar, Erik Groot Jebbink, Roeliene Starreveld, Simon P Overeem, Cornelis H Slump, Jean-Paul P M de Vries, Michel M P J Reijnen
BACKGROUND: The chimney technique has been successfully used to treat juxtarenal aortic aneurysms. The two main issues with this technique are gutter formation and chimney graft (CG) compression, which induce a risk for type Ia endoleaks and stent thrombosis, respectively. In this benchtop study, the geometry and renal artery flow of chimney endovascular aneurysm repair configurations were compared with chimney configurations with endovascular aneurysm sealing (ch-EVAS). METHODS: Seven flow phantoms were constructed, including one control and six chimney endovascular aneurysm repairs (Endurant [Medtronic Inc, Minneapolis, Minn] and AFX [Endologix Inc, Irvine, Calif]) or ch-EVAS (Nellix, Endologix) configurations, combined with either balloon-expandable or self-expanding CGs with an intended higher positioning of the right CG in comparison to the left CG...
December 14, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27986486/one-year-pivotal-trial-outcomes-of-the-nellix-system-for-endovascular-aneurysm-sealing
#13
Jeffrey P Carpenter, Robert Cuff, Clifford Buckley, Christopher Healey, Sajjad Hussain, Michel M P J Reijnen, Jose Trani, Dittmar Böckler
OBJECTIVE: The Nellix EndoVascular Aneurysm Sealing (EVAS) System (Endologix, Inc, Irvine, Calif) is a novel approach to abdominal aortic aneurysm (AAA) treatment whereby polymer is used to fill the AAA sac. We report 1-year results of the investigational device exemption pivotal trial. METHODS: Eligible patients were treated at 30 sites in the United States and Europe. Inclusion criteria required an asymptomatic infrarenal AAA, with a neck length ≥10 mm and ≤60° angle, iliac artery blood lumen diameter 9 to 35 mm, access artery diameter ≥6 mm, and serum creatinine ≤2 mg/dL...
February 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27908817/clinical-outcome-after-endovascular-sealing-of-abdominal-aortic-aneurysms-a-retrospective-cohort-study
#14
Maria Karouki, Charles Swaelens, Luigi Iazzolino, Richard G McWilliams, Robert K Fisher, Andrew England, Francesco Torella
BACKGROUND: The aim of this study is to present the clinical outcome of endovascular aneurysm sealing (EVAS) with the Nellix endoprosthesis in patients with abdominal aortic aneurysms treated in our institution. METHODS: This is a retrospective, single center, observational cohort study. A departmental database was interrogated to extract demographics, clinical information, and outcome of all patients treated with EVAS between December 2013 and December 2015. Outcome measures included technical success (successful device deployment and absence of any endoleak at completion angiography), mortality, major complications, incidence of endoleaks, aneurysm rupture, and reintervention...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27864459/feasibility-and-technical-aspects-of-proximal-nellix-in-nellix-extension-for-late-caudal-endograft-migration
#15
Esmé J Donselaar, Andrew Holden, Aleksandra C Zoethout, Clark J Zeebregts, Michel M P J Reijnen
PURPOSE: To describe the feasibility and technical aspects of a proximal Nellix-in-Nellix extension to treat caudal stent-graft migration after endovascular aneurysm sealing (EVAS) in the in vitro and in vivo settings. METHODS: In vitro studies were designed (1) to assess inner diameters of Nellix-in-Nellix extensions after postdilation with 12-mm balloons and (2) to test wall apposition in tubes with different diameters using a Nellix-in-Nellix stent-graft that extended out of the original Nellix stent-graft lumen by 10, 20, 30, and 40 mm...
November 17, 2016: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/27864458/three-dimensional-analysis-of-component-stability-of-the-nellix-endovascular-aneurysm-sealing-system-after-treatment-of-infrarenal-abdominal-aortic-aneurysms
#16
Bernhard Dorweiler, Christian Boedecker, Friedrich Dünschede, Christian F Vahl, Marwan Youssef
PURPOSE: To assess short-term stability and conformational changes of the Nellix EndoVascular Aneurysm Sealing (EVAS) System using 3-dimensional (3D) analysis. METHODS: Postoperative computed tomography (CT) scans obtained at 0, 3, and 12 months in 24 patients (mean age 75±7 years; 22 men) who underwent EVAS between December 2013 and December 2014 for intact abdominal aortic aneurysm (within the instructions for use) were evaluated for stent-graft deviation in multiple planes using dedicated 3D analysis software...
November 17, 2016: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/27823592/secondary-interventions-after-endovascular-aneurysm-sac-sealing-endoleak-embolization-and-limb-related-interventions
#17
REVIEW
Seyed Ameli-Renani, R A Morgan
The Nellix endovascular aneurysm sealing system is a novel alternative to conventional endovascular aneurysm repair for aortic aneurysm management using paired balloon expandable endografts supported by polymer-filled endobags to achieve sealing and anatomic fixation. Part of the promise of endovascular aneurysm sealing is increased resistance to lateral and longitudinal forces and thus a potential for reduced rates of device-related failures, particularly endoleaks. Initial efficacy data on this device are encouraging, but our knowledge of its associated complications and their management is limited...
March 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/27823591/nellix-endovascular-aneurysm-sealing-system-device-description-technique-of-implantation-and-literature-review
#18
REVIEW
Nayara Cioffi Batagini, David Hardy, Daniel G Clair, Lee Kirksey
Clinical outcome reports document that from 30% to 60% of endovascular aneurysm repair procedures are performed outside of US Food and Drug Administration-approved Instruction for Use, or "off label." Endovascular aneurysm repair performed outside of Instruction for Use has a significantly higher rate of device failure, potentially requiring device reintervention and even planned or emergent explant. The Nellix device has the potential to reduce the rate of aneurysm device failure through its novel design. The objective of this article was to introduce the Nellix EndoVascular Aneurysm Sealing System and indications for use and describe the technique of implantation...
March 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/27798382/commentary-relining-failing-abdominal-aortic-stent-grafts-with-the-nellix-endoprosthesis
#19
Francesco Torella, Richard G McWilliams, Robert K Fisher
No abstract text is available yet for this article.
February 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/27798381/endovascular-aneurysm-sealing-evas-and-chimney-evas-in-the-treatment-of-failed-endovascular-aneurysm-repairs
#20
Marwan Youssef, Sebastian Zerwes, Rudolf Jakob, Oroa Salem, Fritz Dünschede, Christian F Vahl, Bernhard Dorweiler
PURPOSE: To assess the technical success and clinical outcome of reinterventions using the Nellix Endovascular Aneurysm Sealing (EVAS) System to treat complications after endovascular aneurysm repair (EVAR). METHODS: Fifteen consecutive patients (mean age 79 years; 14 men) with prior EVAR were treated with EVAS between March 2014 and December 2015 at 2 institutions. The failed prior EVARs included 13 bifurcated endografts, 1 bifurcated graft plus fenestrated cuff, and 1 tube endograft...
February 2017: Journal of Endovascular Therapy
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