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infrarenal abdominal aortic aneurysm

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https://www.readbyqxmd.com/read/28433338/morbidity-of-endovascular-abdominal-aortic-aneurysm-repair-is-directly-related-to-diameter
#1
Douglas M Overbey, Natalia O Glebova, Brandon C Chapman, Patrick W Hosokawa, John C Eun, Mark R Nehler
OBJECTIVE: Previous randomized controlled trials have defined specific size thresholds to guide surgical decision-making in patients presenting with an abdominal aortic aneurysm (AAA). With recent advances in endovascular techniques, the anatomic considerations of AAA repair are rapidly changing. Our specific aims were to evaluate the most recent national population data to compare anatomic differences and perioperative outcomes in patients with AAA. METHODS: The American College of Surgeons National Surgical Quality Improvement Program was queried from 2011 to 2015 using the targeted vascular public use file...
April 19, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28410923/infrarenal-endograft-clamping-in-late-open-conversions-after-endovascular-abdominal-aneurysm-repair
#2
Paolo Perini, Alessandro de Troia, Tiziano Tecchio, Matteo Azzarone, Claudio Bianchini Massoni, Pierfranco Salcuni, Antonio Freyrie
OBJECTIVE: The aim of this study was to report the technical aspects and outcomes of late open conversion (LOC) after endovascular aneurysm repair (EVAR) in a single center by using exclusively infrarenal clamping of the endograft as an alternative to suprarenal or supraceliac aortic clamping. METHODS: A retrospective analysis of EVAR requiring late explantation (>30 days) from January 1996 to October 2016 was performed. Patients' demographics, type of endograft, duration of implantation, reason for removal, extent of stent graft removal, type of reconstruction, 30-day mortality, postoperative complications, and long-term survival were obtained for analysis...
April 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28390921/long-term-comparison-of-endovascular-and-open-repair-of-abdominal-aortic-aneurysms-retrospective-analysis-of-matched-cohorts-with-propensity-score
#3
Masayuki Sugimoto, Akio Koyama, Kiyoaki Niimi, Akio Kodama, Hiroshi Banno, Kimihiro Komori
BACKGROUND: Although recent guidelines recommend EVAR for robust younger patients, we have been limiting our indication to older patients or those who are physically frail. This study compares long-term outcomes of our series of abdominal aortic aneurysms (AAA) treated with endovascular repair (ER) and open surgery (OS), using propensity-score matching. METHODS: Between June 2007 and October 2014, 819 patients with infrarenal AAA underwent elective repair at our institution...
April 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28389251/five-year-natural-history-of-screening-detected-sub-aneurysms-and-abdominal-aortic-aneurysms-in-70-year-old-women-and-systematic-review-of-repair-rate-in-women
#4
P Söderberg, A Wanhainen, S Svensjö
OBJECTIVE: The aim of this study was to report on the natural history of a population based cohort of 70 year old women with screening detected dilated aortas, and to systematically review publications reporting the rate of intact infrarenal aneurysm repair in women. MATERIAL AND METHODS: In a previous study, 5140 (74%) of 6925 invited women attended an ultrasound (US) examination of the abdominal aorta at age 70 years. All 52 women with screening detected sub-aneurysms (SA, diameter 25-29 mm) and abdominal aortic aneurysms (AAA, diameter ≥30 mm), were followed for 5 years with US...
April 4, 2017: European Journal of Vascular and Endovascular 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
#5
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/28374721/-gastrointestinal-bleeding-caused-by-false-symptomatic-infrarenal-abdominal-aortic-aneurysm
#6
V F Kulikovsky, Yu N Shevtsov, A A Karpachev, A V Soloshenko, A L Yarosh, A V Lopin, D L Mukhachev, B V Kas'yanov
No abstract text is available yet for this article.
2017: Khirurgiia
https://www.readbyqxmd.com/read/28366303/comparison-of-midterm-results-for-the-talent-and-endurant-stent-graft
#7
Yannick W 't Mannetje, Philippe W M Cuypers, Ben R Saleem, Aron S Bode, Joep A W Teijink, Marc R H M van Sambeek
OBJECTIVE: Stent graft evolution is often addressed as a cause for improved outcomes of endovascular aneurysm repair for patients with an abdominal aortic aneurysm. In this study, we directly compared the midterm result of Endurant stent graft with its predecessor, the Talent stent graft (both Medtronic, Santa Rosa, Calif). METHODS: Patient treated from January 2005 to December 2010 in a single tertiary center in The Netherlands with a Talent or Endurant stent graft were eligible for inclusion...
March 30, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28359795/estimation-of-v-possum-and-e-pass-scores-in-prediction-of-acute-kidney-injury-in-patients-after-elective-open-abdominal-aortic-aneurysm-surgery
#8
Andrzej Siemiatkowski, Agnieszka Jablonowska, Joanna Pietrewicz, Jerzy Glowinski
BACKGROUND: V-POSSUM and E-PASS scoring systems are usually used to predict morbidity and early mortality in surgical patients. We conducted this study to assess the validity of the V-POSSUM and E-PASS scores in predicting risk of acute kidney injury (AKI) development in patients undergoing elective open abdominal aortic aneurysm (AAA) repair. METHODS: We studied a consecutive series of 171 patients with AAA, qualified for elective open infrarenal repair. Patients underwent a thorough examination and the physiological and surgical stress components of the V-POSSUM and E-PASS scores were calculated...
March 27, 2017: Annals of Vascular Surgery
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
#9
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
#10
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
#11
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-incidence-of-rupture-of-abdominal-aortic-aneurysm-in-a-mid-european-region
#12
Payman Majd, Wael Ahmad, Thomas Luebke, Jan Sigge Brunkwall
BACKGROUND: This study aims to examine the relationship between weather changes (atmospheric pressure and temperature) and incidence of rupture of abdominal aortic aneurysm (AAA). METHODS: All patients with ruptured infrarenal AAA and who were referred to our institution between August 1998 and August 2015 were prospectively entered into a database 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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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...
May 2017: Journal of Vascular Surgery
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