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infrarenal abdominal aortic aneurysm

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https://www.readbyqxmd.com/read/28341503/endovascular-repair-of-a-large-abdominal-aortic-aneurysm-in-a-patient-presenting-with-lower-extremity-edema-as-a-result-of-inferior-vena-cava-thrombosis
#1
Nan Li, Ming Xue, Deng-Ke Hong, Xing-Sheng Chen
PURPOSE: Abdominal aortic aneurysm (AAA) can present with symptoms because of aneurysmal compression of adjacent organ systems. This condition has always been treated by open surgical repair. Here, we report a case of an AAA complicated by inferior vena cava (IVC) thrombosis and deep venous thrombosis (DVT) due to IVC compression by aneurysm successfully treated by endovascular aneurysm repair (EVAR). CASE REPORT: A 50-year-old man presented with three-day right lower extremity edema...
March 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28320577/pre-operative-functional-cardiovascular-reserve-is-associated-with-acute-kidney-injury-after-intervention
#2
A Saratzis, J Shakespeare, O Jones, M J Bown, A Mahmood, C H E Imray
BACKGROUND: Acute kidney injury (AKI) is a common complication after endovascular intervention, associated with poor short and long-term outcomes. However, the mechanisms underlying AKI development remain poorly understood. The impact of pre-existing cardiovascular disease and low cardiovascular reserve (CVR) in AKI is unclear; it remains unknown whether AKI is primarily related to pre-existing comorbidity or to procedural parameters. The association between CVR and AKI after EVAR was therefore assessed...
March 17, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28288888/a-novel-modification-of-the-murine-elastase-infusion-model-of-abdominal-aortic-aneurysm-formation
#3
Guohua Hu, Zhihui Dong, Weiguo Fu
OBJECT: To create a novel procedure that will decrease the mortality of experimental animals in the intra-arterial infusion of elastase abdominal aortic aneurysm model. METHODS: Novel models were created by means of direct puncture the infrarenal abdominal aortic aorta, intraluminal elastase in the 1cm segment of abdominal aorta. Femoral artery cannula approach and infusing with elastase was considered as the traditional group, and that infusing with saline solution as the control group...
March 10, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28288886/the-atmospheric-pressure-and-temperature-seem-to-have-no-effect-on-the-incidance-of-rupture-of-abdmonial-aortic-aneurysm-in-a-mid-european-region
#4
Payman Majd, Wael Ahmad, Thomas Luebke, Jan Sigge Brunkwall
BACKGROUND/OBJECTIVE: This study aims to examine the relationship between weather changes (atmospheric pressure and temprature) and incidence of rupture of abdominal aortic aneurysm. METHODS: All patients with ruptured infrarenal abdominal aortic aneurysm (AAA) and who were referred to our institution between August 1998 and August 2015 were prospectively entered into a database out of which a retrospective review of a ruptured AAA was performed. The needed information about the daily atmospheric pressure and air temperature could be extracted from the meteorological unit in Cologne...
March 10, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28285957/comparison-of-renal-outcomes-in-patients-treated-by-zenith-%C3%A2-fenestrated-and-zenith-%C3%A2-abdominal-aortic-aneurysm-stent-grafts-in-us-prospective-pivotal-trials
#5
L R de Souza, G S Oderich, M A Farber, S Haulon, P V Banga, A H Pereira, P Gloviczki, S C Textor, F Jia
OBJECTIVE/BACKGROUND: Fenestrated endovascular repair (FEVAR) has been used to treat complex abdominal aortic aneurysms (AAAs). The risk of renal function deterioration compared with infrarenal endovascular aortic repair (EVAR) has not been determined. METHODS: Patients with preserved renal function (estimated glomerular filtration rate [eGFR] > 45 mL/minute) enrolled in two prospective, non-randomised studies evaluating Zenith fenestrated and AAA stent grafts were matched (1:2) by propensity scores for age, sex, hypertension, diabetes, and pre-operative eGFR...
March 10, 2017: European Journal of Vascular and Endovascular Surgery
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/28279653/comparison-of-renal-complications-between-endografts-with-suprarenal-and-infrarenal-fixation
#7
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/28274752/a-novel-chronic-advanced-stage-abdominal-aortic-aneurysm-murine-model
#8
Guanyi Lu, Gang Su, John P Davis, Basil Schaheen, Emily Downs, R Jack Roy, Gorav Ailawadi, Gilbert R Upchurch
OBJECTIVE: The purpose of this study was to establish a reliable, chronic model of abdominal aortic aneurysm (AAA). METHODS: Wild-type 8-week-old C56BL/6 male mice (n = 120) were equally divided into three groups: (1) BAPN group: 0.2% 3-aminopropionitrile fumarate salt (BAPN) drinking water was provided to mice 2 days before surgery until the end of study. Sham aneurysm induction surgery was performed using 5 μL of heat deactivated elastase. (2) Elastase group: mice were given regular drinking water without BAPN...
March 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28268109/the-incidence-and-fate-of-endoleaks-vary-between-ruptured-and-elective-endovascular-abdominal-aortic-aneurysm-repair
#9
Adam A Quinn, Manish Mehta, Mehdi J Teymouri, Megan E Keenan, Philip S K Paty, Yi Zhou, Benjamin B Chang, Paul Feustel
BACKGROUND: The number of ruptured abdominal aortic aneurysm (r-AAA) patients who are treated by endovascular means is increasing as ruptured endovascular aneurysm repair (r-EVAR) enters the mainstream. However, even today, data on the incidence and behavior of endoleaks after r-EVAR are scarce. This study analyzed whether endoleaks behave differently after EVAR for rupture vs elective AAA repair. METHODS: From 2002 to 2013, there were 2052 patients who underwent EVAR for treatment of rupture (n = 166 [8...
March 4, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28259577/outcomes-of-fenestrated-and-branched-endovascular-repair-of-complex-abdominal-and-thoracoabdominal-aortic-aneurysms
#10
Andres Schanzer, Jessica P Simons, Julie Flahive, Jonathan Durgin, Francesco A Aiello, Danielle Doucet, Robert Steppacher, Louis M Messina
BACKGROUND: More than 80% of infrarenal aortic aneurysms are treated by endovascular repair. However, adoption of fenestrated and branched endovascular repair for complex aortic aneurysms has been limited, despite high morbidity and mortality associated with open repair. There are few published reports of consecutive outcomes, inclusive of all fenestrated and branched endovascular repairs, starting from the inception of a complex aortic aneurysm program. Therefore, we examined a single center's consecutive experience of fenestrated and branched endovascular repair of complex aortic aneurysms...
March 1, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28255495/early-and-late-endograft-limb-proximal-migration-with-resulting-type-1b-endoleak-following-an-evar-for-ruptured-aaa
#11
Patrick T Jasinski, Demetri Adrahtas, Spyridon Monastiriotis, Apostolos K Tassiopoulos
Introduction. Seal zone failure after EVAR leads to type 1 endoleaks and increases the risk of delayed aortic rupture. Type 1b endoleaks, although rare, represent a true risk to the repair. Case Presentation. We report the case of a 65-year-old female who underwent emergent endovascular repair for a ruptured infrarenal abdominal aortic aneurysm and developed bilateral type 1b endoleaks following proximal migration of both endograft limbs. The right-side failure was diagnosed within 48 hours from the initial repair and the left side at the 1-year follow-up...
2017: Case Reports in Vascular Medicine
https://www.readbyqxmd.com/read/28254395/trends-in-use-of-the-only-food-and-drug-administration-approved-commercially-available-fenestrated-endovascular-aneurysm-repair-device-in-the-united-states
#12
Jessica P Simons, Bing Shue, Julie M Flahive, Francesco A Aiello, Robert C Steppacher, Elizabeth A Eaton, Louis M Messina, Andres Schanzer
BACKGROUND: Fenestrated endografts are customized, patient-specific, endovascular devices with potential to significantly reduce morbidity and mortality of short-neck infrarenal and juxtarenal abdominal aortic aneurysm repair. The Zenith fenestrated endovascular graft (ZFEN) for abdominal aortic aneurysms (Cook Medical, Bloomington, Ind), Food and Drug Administration-approved in 2012, remains the only fenestrated device available in the United States. This technology is among the most technically complex catheter-based procedures and, therefore, inherently associated with serious risk for device-related complications...
February 19, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28238928/endovascular-and-open-repair-of-ruptured-infrarenal-aortic-aneurysms-at-a-tertiary-care-center
#13
Matthew A Schechter, Luigi Pascarella, Steven Thomas, Richard L McCann, Leila Mureebe
OBJECTIVE: The mortality of ruptured infrarenal abdominal aortic aneurysms (rAAA) has been reported as high as 90%. Loss of consciousness and a systolic blood pressure of < 80mmHg on presentation are the most important predictors of mortality after emergent open repair (OR). Endovascular repair of abdominal aortic aneurysm (EVAR) has reduced short-term operative mortality and morbidity for elective abdominal aortic aneurysm repair, and many be advocated for wider application of EVAR for rAAA...
February 23, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28237648/risk-factors-for-abdominal-aortic-aneurysm-in-the-korean-population
#14
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/28222985/concurrent-renal-artery-stent-during-endovascular-infrarenal-aortic-aneurysm-repair-confers-higher-risk-for-30-day-acute-renal-failure
#15
Besma Nejim, Isibor Arhuidese, Muhammmad Rizwan, Lana Khalil, Satinderjit Locham, Devin Zarkowsky, Philip Goodney, Mahmoud B Malas
OBJECTIVE: Concurrent renal artery angioplasty and stenting (RAAS) during endovascular aneurysm repair (EVAR) of infrarenal abdominal aortic aneurysm (AAA) has been practiced in an attempt to maintain renal perfusion. The aim of this study was to identify the current practice of RAAS during EVAR and its effect on perioperative renal outcome. METHODS: Patients with infrarenal AAA were identified from the American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP, 2011-2014) database...
April 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28216366/implications-of-concomitant-hypogastric-artery-embolization-with-endovascular-repair-of-infrarenal-abdominal-aortic-aneurysms
#16
Behzad S Farivar, Richa Kalsi, Charles B Drucker, Carly B Goldstein, Rajabrata Sarkar, Shahab Toursavadkohi
OBJECTIVE: Hypogastric artery embolization (HAE) is associated with significant risk of ischemic complications. We assessed the impact of HAE on 30-day outcomes of endovascular aneurysm repair (EVAR) of infrarenal abdominal aortic aneurysms. METHODS: We queried the American College of Surgeons National Surgical Quality Improvement Program database from 2011 to 2014 to identify and to compare clinical features, operative details, and 30-day outcomes of EVAR with those of concomitant HAE with EVAR (HAE + EVAR)...
February 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28216360/the-influence-of-prototype-testing-in-three-dimensional-aortic-models-on-fenestrated-endograft-design
#17
Fadi Taher, Juergen Falkensammer, Jamie McCarte, Johann Strassegger, Miriam Uhlmann, Philipp Schuch, Afshin Assadian
OBJECTIVE: The fenestrated Anaconda endograft (Vascutek/Terumo, Inchinnan, UK) is intended for the treatment of abdominal aortic aneurysms with an insufficient infrarenal landing zone. The endografts are custom-made with use of high-resolution, 1-mm-slice computed tomography angiography images. For every case, a nonsterile prototype and a three-dimensional (3D) model of the patient's aorta are constructed to allow the engineers as well as the physician to test-implant the device and to review the fit of the graft...
February 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28216357/measuring-abdominal-aortic-diameters-in-routine-abdominal-computed-tomography-scans-and-implications-for-abdominal-aortic-aneurysm-screening
#18
Rachel Claridge, Sam Arnold, Neil Morrison, André M van Rij
OBJECTIVE: This study aimed to determine the prevalence and relevance of incidental abdominal aortic aneurysm (AAA) on routine abdominal computed tomography (CT) and to audit the performance of radiologists to identify and report AAA. METHODS: A retrospective audit of all abdominal CT scans performed on men and women ≥50 years at Dunedin Public Hospital between January 2013 and September 2014 was carried out. All CT scans for planning of AAA treatment or follow-up were excluded...
February 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28216344/perioperative-outcome-of-endovascular-repair-for-complex-abdominal-aortic-aneurysms
#19
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/28190721/lombard-aorfix-high-angulation-device-sac-behavior-following-implantation
#20
Edward A McGillicuddy, Mark Fillinger, William P Robinson, Kim Hodgson, William D Jordan, Adam W Beck, Mahmoud Malas, Michael Belkin
OBJECTIVE: Short neck length, and angulated infrarenal aortic necks, are historically associated with sac expansion following endovascular abdominal aortic aneurysm repair. Aorfix (Lombard Medical, Inc, Irvine, Calif), a conformable stent graft US Food and Drug Administration approved for highly angulated necks, was investigated in the US Pythagoras Trial. We investigated the incidence of, and factors related to, sac regression and expansion following implantation of the Aorfix device...
February 9, 2017: Journal of Vascular Surgery
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