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https://www.readbyqxmd.com/read/28688878/retrospective-review-of-billowing-phenomenon-a-mimic-of-endoleak-following-placement-of-endologix-covered-stent-for-the-treatment-of-abdominal-aortic-aneurysm
#1
Naseem Helo, Arthur C Chang, Christine Hyun, Christian Bianchi, Theodore H Teruya, Alex C Yi, Kenneth S Chon
BACKGROUND: Billowing is a unique CT finding of the Endologix stent graft where a rim of contrast is observed outside the stent's endoskeleton but still contained within the graft cover. The purpose of this study is to evaluate the incidence and clinical outcome of billowing following an Endologix stent graft placement. METHODS: All patients who underwent Abdominal Aortic Aneurysm (AAA) repair with endovascular placement of an Endologix stent graft from January 2002-September 2013 that were followed with imaging were included in the study...
July 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28602623/comparison-of-outcomes-for-short-neck-and-juxtarenal-aortic-aneurysms-treated-with-the-nellix-endograft-versus-conventional-endovascular-aneurysm-sealing
#2
Daniele Psacharopulo, Michelangelo Ferri, Emanuele Ferrero, Sandeep S Bahia, Andrea Viazzo, Alberto Pecchio, Fulvio Ricceri, Franco Nessi
OBJECTIVE: The objective of this study was to evaluate the results of the off-label use of the Nellix endograft (Endologix, Irvine, Calif) for the treatment of short-neck aneurysms and juxtarenal aortic aneurysms (JAAs) compared with the outcomes of patients with infrarenal abdominal aortic aneurysms treated in accordance with the manufacturer's instructions for use. METHODS: Data available from patients treated with the Nellix endograft from September 2013 to January 2016 were reviewed to create a case-control analysis (1:2)...
June 8, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28377907/initial-clinical-experience-with-the-endologix-afx-unibody-stent-graft-system-for-treating-patients-with-abdominal-aortic-aneurysms-a-case-controlled-comparative-study
#3
George N Kouvelos, Petroula Nana, Vasilios Bouris, Michalis Peroulis, Aikaterini Drakou, Nikolaos Rousas, Athanasios Giannoukas, Miltiadis I Matsagkas
PURPOSE: The newly designed unibody AFX endograft system for endovascular aortic aneurysm repair is the only graft with anatomical fixation to the aortic bifurcation in comparison to most other grafts that use the infrarenal neck as the main fixation point. The aim of this study was to assess the preliminary results of the AFX stent-graft system used with infrarenal aortic component and compare them with those obtained in patients treated with a well established endograft of the same material and pure infrarenal fixation as the Gore Excluder...
March 2017: Vascular Specialist International
https://www.readbyqxmd.com/read/28341512/change-in-aortic-neck-diameter-after-endovascular-aortic-aneurysm-repair
#4
Marcus R Kret, Kenneth Tran, Jason T Lee
INTRODUCTION: and Objectives: Implications of aortic neck dilatation following EVAR are unclear. Previous studies are limited to comparisons of individual, early-generation devices. We compared aortic neck dilatation among contemporary stent-grafts. METHODS: We reviewed pre- and post-op CTA for EVARs performed from 2008-2014. Images were analyzed using 3-D centerline reconstructions. Aortic neck diameter was measured in orthogonal planes at and 10 mm below the lowest renal artery...
March 21, 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
#5
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
#6
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/28163172/endovascular-management-of-para-prosthetic-aortocaval-fistula-case-report-and-systematic-review-of-the-literature
#7
Claudio Bianchini Massoni, Giulia Rossi, Tiziano Tecchio, Paolo Perini, Antonio Freyrie
The aim of this article is to report a case of asymptomatic para-anastomotic aortocaval fistula (ACF) treated by endovascular aortic repair, and to review data of the literature on arteriovenous fistulae secondary to abdominal aortic surgery. A 78-year-old male complained of worsening pain in the right lower limb since 2 months. He presented a history of right femoropopliteal bypass for peripheral arterial occlusive disease and elective surgical treatment for a non-ruptured infrarenal aortic aneurysm (Dacron tube graft)...
February 3, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28127120/results-of-repair-of-iliac-artery-aneurysms-with-the-sandwich-technique
#8
Ryan A Shutze, Wes Oglesby, Allen Lee, William P Shutze
Patients undergoing endovascular repair (EVAR) of aortoiliac or iliac artery aneurysm may require sacrifice of one or both internal iliac arteries (IIAs). Until Food and Drug Administration-approved commercial grafts became available, endovascular IIA preservation was accomplished using the "sandwich" technique, but limited information is available regarding the results of this method. After obtaining institutional review board approval, we identified patients undergoing IIA preservation with the sandwich technique during EVAR at our institution...
January 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28034587/factors-that-affect-cost-and-clinical-outcome-of-endovascular-aortic-repair-for-abdominal-aortic-aneurysm
#9
Monica S O'Brien-Irr, Linda M Harris, Hasan H Dosluoglu, Gregory S Cherr, Mariel Rivero, Sonya Noor, G Richard Curl, Maciej L Dryjski
OBJECTIVE: This study evaluated the effect of indication for use (IFU), additional graft components, and percutaneous closure of endovascular aortic repair (PEVAR) on clinical outcomes and cost of endovascular aortic repair (EVAR). METHODS: Clinical and financial data were obtained for all elective EVARs completed at a university-affiliated medical center between January 2012 and June 2013. Data were analyzed by χ(2), Student t-test for independent samples, and Kaplan-Meier survival...
April 2017: Journal of 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
#10
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
#11
MULTICENTER STUDY
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/27981889/percutaneous-implantation-of-a-unibody-endograft-to-treat-non-aneurysmal-aortoiliac-disease
#12
Marcus Vinícius Martins Cury, Thiago Osawa Rodrigues, Antônio Augusto Tadeu Issa
This case-series report describes the use of an Endologix AFX(®) stent graft for the treatment of non-aneurysmal aortic disease. Over a period of 26 months, this device was successfully implanted in six patients with aortic bifurcation < 15 mm to treat critical limb ischemia secondary to dissection, ulcer, or coarctation.
March 2017: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/27956648/abdominal-aortic-aneurysm-with-renal-arteries-originating-above-the-superior-mesenteric-artery
#13
Ajit Rao, Adam Korayem, Rami Tadros, Peter Faries, Michael Marin, Rajiv Chander
A 63-year-old female presented to clinic following an incidental finding of an abdominal aortic aneurysm (AAA). Preoperative imaging was consistent with an infrarenal AAA over 5-cm in diameter with both renal arteries originating above the superior mesenteric artery (SMA). The patient subsequently underwent an endovascular aneurysm repair (EVAR) using the AFX stent-graft (Endologix, Inc, Irvine, Calif). Notably, the proximal stent-graft piece was unsheathed with the image intensifier in a lateral position to ensure deployment below the SMA...
January 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27908810/emergent-treatment-of-a-ruptured-thoraco-abdominal-aortic-aneurysm-by-off-label-rescue-implantation-of-the-ovation-%C3%A2-stent-graft-in-nonagenarians-patient
#14
Chiara Pranteda, Pasqualino Sirignano, Federica Fornelli, Wassim Mansour, Nunzio Montelione, Laura Capoccia, Francesco Speziale
We report a case of a compassionate treatment of a ruptured thoraco-abdominal aortic aneurysm in a 92-year-old patient. Patient was admitted to our emergency department for acute onset of pain irradiating to the back. Computed tomographic angiography showed the presence of a thoraco-abdominal aortic aneurysm with a contained rupture at infrarenal level. Given of the presence of a relative healthy visceral aorta, we decided to treat the patient by Ovation(®) (Endologix, Irvine, CA - USA) implantation in an off-label fashion...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27776696/preservation-of-hypogastric-flow-and-control-of-iliac-aneurysm-size-in-the-treatment-of-aortoiliac-aneurysms-using-the-nellix-endovascular-aneurysm-sealing-endograft
#15
MULTICENTER STUDY
Dainis K Krievins, Janis Savlovskis, Andrew H Holden, Kaspars Kisis, Andrew A Hill, Marcis Gedins, Natalija Ezite, Christopher K Zarins
OBJECTIVE: The purpose of this study was to determine the long-term effectiveness of endovascular aneurysm sealing (EVAS) in the treatment of complex aortoiliac aneurysms with preservation of hypogastric artery flow. METHODS: We reviewed all patients with abdominal aortic aneurysms (AAAs) and common iliac aneurysms (CIAs) enrolled and treated in prospective studies of EVAS using the Nellix endograft (Endologix, Irvine, Calif) at two centers from 2008 to 2014. Patients with 1 year or more of computed tomography follow-up underwent quantitative morphometric assessment by two independent vascular radiologists blinded to clinical outcome results...
November 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27765483/endovascular-treatment-of-transatlantic-inter-society-consensus-d-aortoiliac-occlusive-disease-using-unibody-bifurcated-endografts
#16
Robert M Van Haren, Lee J Goldstein, Omaida C Velazquez, Jagajan Karmacharya, Arash Bornak
OBJECTIVE: Aortobifemoral bypass has been the gold standard treatment for extensive aortoiliac occlusive disease. Endovascular therapy and stenting of aortic and iliac occlusive lesions has proven to be efficacious, especially when dealing with short segment lesions. Endovascular treatment of TransAtlantic Inter-Society Consensus II (TASC) D aortoiliac occlusive lesions remains a challenge, but a valuable treatment option in poor surgical candidates. We present our operative technique and midterm results in treating TASC D aortoiliac occlusive disease using unibody bifurcated endografts...
February 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27728949/fenestrated-endografts-for-complex-abdominal-aortic-aneurysm-repair
#17
Arne de Niet, Michel Mpj Reijnen, Ignace Fj Tielliu, Jan Willem Hp Lardenoije, Clark J Zeebregts
Since the introduction of fenestrated endovascular aneurysm repair (FEVAR) in 1996, great advances have been made in endograft development. Custom-made and off-the-shelf fenestrated and branched endografts have been used to treat patients with complex abdominal aortic and thoraco-abdominal aneurysms. Most experience has been gained with the Cook Zenith® fenestrated endograft (Cook Medical Inc., Limerick, Ireland). The Cook Zenith® endograft is customized with fenestrations, (fixed) inner or outer branches, or a combination of them, to cover a wide range of complex aneurysms...
October 6, 2016: Surgical Technology International
https://www.readbyqxmd.com/read/27666797/juxtarenal-inflammatory-aneurysm-treated-with-bilateral-iliac-renal-bypass-using-the-gore-hybrid-device-and-total-sealing-of-the-aneurysmal-sac-with-a-nellix-device
#18
Ombretta Martinelli, Alban Malaj, Roberto Gattuso, Luigi Irace, Bruno Gossetti
The aim of this study is to present the treatment of a juxtarenal inflammatory aneurysm using a Nellix device (Endologix, Inc., Irvine, CA) to seal the entire aneurysmatic aorta combined with bilateral iliac-renal bypass using the Gore hybrid vascular graft (W. L. Gore & Associates, Inc., Flagstaff, AZ). A 63-year-old man was diagnosed with a 6-cm juxtarenal inflammatory aneurysm. It was initially decided to treat him with an aorto-aortic bypass and to revascularize the 2 renal arteries with "graft to renal artery bypass" using Gore hybrid vascular grafts...
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27263812/billowing-of-endologix-powerlink-stent-graft-in-post-endovascular-repair-of-abdominal-aortic-aneurysm-simultaneous-findings-on-ct-and-ultrasound-imaging
#19
Naseem Helo, Arthur C Chang, Christine Hyun, Kenneth S Chon, Alex C Yi
Endoleaks remain a main concern in endovascular aneurysm repair. A potential false positive in the diagnosis of endoleak surveillance includes "billowing," a phenomenon of the polytetrafluoroethylene plastic outer fabric of the stent graft is seen separated from the struts of the metallic endoskeleton. Contrast presents beyond the endoskeleton but is still contained within the graft. This is secondary to intermittent attachment of the graft to the endoskeleton, and is only found in the Endologix Powerlink. The finding of billowing has been previously reported and is a common knowledge by those who deploy the stent graft...
August 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27189768/failure-mode-analysis-of-the-endologix-endograft
#20
Gary W Lemmon, Rahgu L Motaganahalli, Tiffany Chang, James Slaven, Ben Aumiller, Bradford J Kim, Michael C Dalsing
OBJECTIVE: Type III (T-III) endoleaks following endovascular aneurysm repair (EVAR) remain a major concern. Our center experienced a recent concentration of T-III endoleaks requiring elective and emergency treatment and prompted our review of all EVAR implants over a 40-month period from April 2011 until August 2014. This report represents a single center experience with T-III endoleak management with analysis of factors leading to the T-III-related failure of EVAR. METHODS: A retrospective review of all the operative reports, medical records, and computed tomography scans were reviewed from practice surveillance...
September 2016: Journal of Vascular Surgery
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