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Suprarenal aneurysm

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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
#1
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/28279653/comparison-of-renal-complications-between-endografts-with-suprarenal-and-infrarenal-fixation
#2
S L Zettervall, P A Soden, S E Deery, K Ultee, K E Shean, F Shuja, R L Amdur, M L Schermerhorn
OBJECTIVES: Surgeons have multiple grafts options available for the endovascular treatment of abdominal aortic aneurysm (EVAR), and some hypothesize that suprarenal fixation endografts may result in higher rates of renal complications than infrarenal endografts. This study aimed to compare the outcomes of contemporary suprarenal and infrarenal endografts. METHODS: The Targeted Vascular Module of the National Surgical Quality Improvement Project was utilised to identify patients undergoing EVAR for infrarenal aneurysm from 2011 to 2013...
March 6, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28274751/predictors-of-early-aortic-neck-dilatation-after-endovascular-aneurysm-repair-with-endoanchors
#3
Apostolos K Tassiopoulos, Spyridon Monastiriotis, William D Jordan, Bart E Muhs, Kenneth Ouriel, Jean Paul De Vries
OBJECTIVE: Dilatation of the aorta within the proximal neck after endovascular aneurysm repair (EVAR) can be associated with late endoleaks and migration. This study was designed to identify predictors of early neck dilation in patients undergoing EVAR with Heli-FX EndoAnchors (Medtronic, Santa Rosa, Calif) measured perioperatively to 1 year at different longitudinal levels of neck length. METHODS: The study group of Aneurysm Treatment Using the Heli-FX Aortic Securement System (ANCHOR) comprises 257 consecutive patients prospectively enrolled between April 2012 and September 2014 undergoing EVAR with Heli-FX EndoAnchor implantation at 38 investigational sites...
March 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28270294/effect-of-bortezomib-on-angiotensin-%C3%A2-induced-abdominal-aortic-aneurysm-in-apoe-mice
#4
Fangda Li, Huihua Li, Cui Tian, Hao Nie, Yuehong Zheng
Objective To investigate the role of proteasome inhibitor bortezomib (BTZ) in inflammatory response in abdominal aortic aneurysm (AAA) formation induced by angiotensin Ⅱ (Ang Ⅱ). Methods Ang Ⅱ-induced ApoE(-/-) mice AAA models were established. Forty male ApoE(-/-) mice (8-10-week-old) were randomly and equally divided into four groups:Sham group,BTZ group,Ang Ⅱ group,and Ang Ⅱ+BTZ group.HE staining,immunohistochemical staining,and flow cytometry were used to analyze the inflammatory response. Real-time quantitative polymerase chain reaction (qPCR) was used to analyze the mRNA expression of intercellular cell adhesion molecule-1 (ICAM-1)...
February 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28237648/risk-factors-for-abdominal-aortic-aneurysm-in-the-korean-population
#5
Sang-Ah Han, Jin Hyun Joh, Ho-Chul Park
BACKGROUND: Ultrasound screening shows a clinical benefit in reducing abdominal aortic aneurysm (AAA)-related mortality. However, its cost-effectiveness remains unclear. Understanding the relationship between risk factors and AAA is important to maximize the benefit of AAA screening. However, risk factors for AAA have not been reported in Korea. The purpose of this study was to determine the prevalence of and risk factors for AAA among the Korean population. METHODS: The study population consisted of patients >50 years of age who consented for AAA screening...
February 22, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28216344/perioperative-outcome-of-endovascular-repair-for-complex-abdominal-aortic-aneurysms
#6
Klaas H J Ultee, Sara L Zettervall, Peter A Soden, Jeremy Darling, Hence J M Verhagen, Marc L Schermerhorn
BACKGROUND: As endovascular aneurysm repair (EVAR) continues to advance, eligibility of patients with anatomically complex abdominal aortic aneurysms (AAAs) for EVAR is increasing. However, whether complex EVAR is associated with favorable outcome over conventional open repair and how outcomes compare with infrarenal EVAR remains unclear. This study examined perioperative outcomes of patients undergoing complex EVAR, focusing on differences with complex open repair and standard infrarenal EVAR...
February 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28205454/graft-complexity-related-outcomes-of-fenestrated-endografting-for-abdominal-aortic-aneurysms
#7
Kyriakos Oikonomou, Piotr Kasprzak, Wilma Schierling, Reinhard Kopp, Karin Pfister
PURPOSE: To report the outcomes of fenestrated endovascular aneurysm repair (FEVAR) and compare early and midterm results in relation to stent-graft complexity. METHODS: Between August 2006 and December 2014, 141 consecutive patients (mean age 72±7.6 years, range 50-89; 120 men) were treated electively with FEVAR for short-neck, juxtarenal, or suprarenal aortic aneurysms. Forty-five patients treated with stent-grafts featuring renal-only fenestrations were assigned to group A, while 96 patients receiving additional fenestrations for the superior mesenteric and/or celiac arteries were assigned to group B...
February 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28205450/push-up-technique-and-anatomical-deployment-with-the-endurant-stent-graft-system-for-severely-angulated-aneurysm-necks
#8
Shizuyuki Dohi, Yasutaka Yokoyama, Taira Yamamoto, Kenji Kuwaki, Akifusa Hariya, Kan Kajimoto, Hironobu Yamaoka, Akie Shimada, Ryo Tsuruta, Atsushi Amano
PURPOSE: To describe a technique suitable for treating severely angulated (>75°) necks during endovascular aneurysm repair using the Endurant stent-graft. TECHNIQUE: In the push-up technique, the suprarenal stent is released early to fix the proximal stent-graft in place so that each stent in the neck can be deployed individually without displacing the device upward. It is important to push the delivery system up after each stent deployment to allow the fabric between the stents to fold up circumferentially...
February 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28128541/fenestrated-and-chimney-endovascular-aneurysm-repair-versus-open-surgery-for-complex-abdominal-aortic-aneurysms
#9
Vicente A Sala-Almonacil, José M Zaragozá-García, Mauricio Ramírez-Montoya, Vicente Molina-Nácher, Inmaculada Martínez-Perelló, Francisco J Gómez-Palonés
BACKGROUND: Many patients with complex abdominal aortic aneurysms are unfit for open repair. New endovascular technologies and bailout techniques are being used for managing those complex anatomies. The purpose of this study is to compare the results obtained with advanced endovascular aneurysm repair techniques (fenestrated and chimney endografts) to those obtained with open repair for the treatment of complex abdominal aortic aneurysms not anatomically suitable for standard endovascular exclusion (infrarenal neck <10 mm, juxtarenal, suprarenal and Crawford's type IV thoracoabdominal aneurysms)...
January 27, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28073666/standard-endovascular-aneurysm-repair-in-patients-with-wide-infrarenal-aneurysm-necks-is-associated-with-increased-risk-of-adverse-events
#10
Nelson F G Oliveira, Frederico M Bastos Gonçalves, Marie Josee Van Rijn, Quirina de Ruiter, Sanne Hoeks, Jean-Paul P M de Vries, Joost A van Herwaarden, Hence J M Verhagen
OBJECTIVE: Endovascular aneurysm repair (EVAR) has progressively expanded to treat more challenging anatomies. Although EVAR in patients with wide infrarenal necks has been reported with acceptable results, there is still controversy regarding the longer-term outcomes. Our aim is to determine the impact of infrarenal neck diameter on midterm outcome following EVAR with a single endograft with suprarenal fixation. METHODS: A retrospective case-control study was designed using data from a prospective multicenter database...
January 7, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27986483/contemporary-open-repair-of-ruptured-abdominal-aortic-aneurysms
#11
Jeffrey J Siracuse, Brianna M Krafcik, Alik Farber, Jeffrey A Kalish, Andrew McChesney, Denis Rybin, Gheorghe Doros, Mohammad H Eslami
OBJECTIVE: Although endovascular repair of ruptured abdominal aortic aneurysms (rAAAs) is increasingly more prevalent and may yield better results, open repair of rAAAs is still commonly performed. Our goal was to assess the contemporary practice patterns and outcomes of open repair of rAAA. METHODS: The 2011-2014 American College of Surgeons National Surgical Quality Improvement Program targeted open AAA database was queried for all rAAAs. Patient characteristics, presentation, aneurysm details, and operative details were analyzed to identify factors that may affect outcome in this population of patients...
December 13, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27974495/a-systematic-review-of-proximal-neck-dilatation-after-endovascular-repair-for-abdominal-aortic-aneurysm
#12
George N Kouvelos, Kyriakos Oikonomou, George A Antoniou, Eric L G Verhoeven, Athanasios Katsargyris
PURPOSE: To provide an updated systematic literature review and summarize current evidence on proximal aortic neck dilatation (AND) after endovascular aneurysm repair (EVAR). METHODS: A review of the English-language medical literature from 1991 to 2015 was conducted using MEDLINE and EMBASE to identify studies reporting AND after EVAR. Studies considered for inclusion and full-text review fulfilled the following criteria: (1) reported AND after EVAR, (2) included at least 5 patients, and (3) provided data on AND quantification...
February 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/27894713/abdominal-aortic-aneurysm-in-marfan-syndrome
#13
Tracy Hagerty, Patrick Geraghty, Alan C Braverman
OBJECTIVE: Marfan syndrome (MFS) leads to aortic root aneurysm, while descending thoracic aortic aneurysm (TAA) occurs less commonly. Abdominal aortic aneurysm (AAA) is rarely reported in MFS. Risk factors for AAA are poorly understood and there are no guidelines for AAA screening in MFS. We sought to characterize AAA among Marfan patients in our center. METHODS: The records of 12 adults with MFS and AAA disease were reviewed. Clinical features, imaging, operative reports, and outcomes were analyzed...
November 25, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27890849/hybrid-treatment-of-a-suprarenal-aortic-aneurysm-with-an-infrarenal-aortobifemoral-surgical-graft-and-a-fenestrated-stent-graft
#14
Sebastian Nagel, Athanasios Katsargyris, Kyriakos Oikonomou, Eric L G Verhoeven
BACKGROUND: The aim of this study was to report a hybrid technique for the treatment of a suprarenal aortic aneurysm (SAA) in a patient with iliac occlusive disease. Initially, an infrarenal aortobifemoral surgical graft was implanted, followed by deployment of a fenestrated bifurcated stent graft at the suprarenal part of the aorta. METHODS: A 69-year-old man presented with a 51-mm saccular suprarenal aortic aneurysm and iliac occlusive disease with intermittent claudication...
February 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27890835/acute-kidney-injury-after-open-repair-of-intact-abdominal-aortic-aneurysms
#15
REVIEW
Charles Dariane, Raphaël Coscas, Celia Boulitrop, Isabelle Javerliat, Eve Vilaine, Olivier Goeau-Brissonniere, Marc Coggia, Ziad A Massy
BACKGROUND: These last years, considerable attention has been given to renal issues following endovascular aortic repair but acute kidney injury (AKI) also remains one of the most frequent complications following open repair (OR). Since AKI definition has evolved, our aim was to review the etiology, incidence, classifications, and consequences of AKI after OR for intact abdominal aortic aneurysm (AAA). METHODS: A review of the English language literature published between 2004 and 2016 was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) criteria...
February 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27890833/pulse-wave-analysis-after-treatment-of-abdominal-aortic-aneurysms-with-the-ovation-device
#16
Efstratios Georgakarakos, Christos Argyriou, George S Georgiadis, Miltos K Lazarides
BACKGROUND: Ovation aortic stent-graft system is a new device for the endovascular treatment of Abdominal Aortic Aneurysms achieving fixation via a 35-mm long, rigid anchored suprarenal stent and sealing stent at the infrarenal level by a means of a polymer-filling pair of inflatable O-rings, which cause narrowing of flow lumen and regional stenosis. Thus, concerns have been raised regarding hemodynamic consequences associated with this new design. Our preliminary report showed no significant increase of aortic pulse wave velocity (aPWV) immediately after implantation of the ovation in 3 patients...
November 25, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27866882/commentary-on-the-endovascular-sealing-device-in-combination-with-parallel-grafts-for-treatment-of-juxta-suprarenal-abdominal-aortic-aneurysms-short-term-results-of-a-novel-alternative
#17
M Knowles, C Timaran
No abstract text is available yet for this article.
January 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27769755/noninvasive-regional-aortic-stiffness-for-monitoring-the-early-stage-of-abdominal-aortic-aneurysm-in-mice
#18
Qiulun Lu, Xiuxin Jiang, Cheng Zhang, Wei Zhang, Wencheng Zhang
BACKGROUND: Abdominal aortic aneurysm (AAA) affects more than 5% of the population in developed countries. To study the formation and progression of AAA, we developed a non-invasive method to analyse regional aortic stiffness to monitor the formation and progression of AAA. METHODS: Saline or Angiotensin II (AngII) was subcutaneously infused in apolipoprotein E knockout (ApoE(-/-)) mice for 28 days; a high-resolution imaging system was used to identify changes in arterial stiffness measured by pulse-wave velocity (PWV) and aortic lumen diameter in the suprarenal aorta...
August 17, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/27767064/angiopoietin-2-attenuates-angiotensin-ii-induced-aortic-aneurysm-and-atherosclerosis-in-apolipoprotein-e-deficient-mice
#19
Hongyou Yu, Corey S Moran, Alexandra F Trollope, Lynn Woodward, Robert Kinobe, Catherine M Rush, Jonathan Golledge
Angiogenesis and inflammation are implicated in aortic aneurysm and atherosclerosis and regulated by angiopoietin-2 (Angpt2). The effect of Angpt2 administration on experimental aortic aneurysm and atherosclerosis was examined. Six-month-old male apolipoprotein E deficient (ApoE(-/-)) mice were infused with angiotensin II (AngII) and administered subcutaneous human Fc-protein (control) or recombinant Angpt2 (rAngpt2) over 14 days. Administration of rAngpt2 significantly inhibited AngII-induced aortic dilatation and rupture of the suprarenal aorta (SRA), and development of atherosclerosis within the aortic arch...
October 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27720319/a-multicenter-experience-with-infected-abdominal-aortic%C3%A2-endograft-explantation
#20
Xavier Chaufour, Julien Gaudric, Yann Goueffic, Réda Hassen Khodja, Patrick Feugier, Sergei Malikov, Guillaume Beraud, Jean-Baptiste Ricco
OBJECTIVE: Endovascular aneurysm repair (EVAR) is widely used with excellent results, but its infectious complications can be devastating. In this paper, we report a multicenter experience with infected EVAR, symptoms, and options for explantation and their outcome. METHODS: We have reviewed all consecutive endograft explants for infection at 11 French university centers following EVAR, defined as index EVAR, from 1998 to 2015. Diagnosis of infected aortic endograft was made on the basis of clinical findings, cultures, imaging studies, and intraoperative findings...
February 2017: Journal of Vascular Surgery
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