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infrarenal abdominal aortic aneurysm

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https://www.readbyqxmd.com/read/28502552/bifurcated-bifurcated-aneurysm-repair-is-a-novel-technique-to-repair-infrarenal-aortic-aneurysms-in-the-setting-of-iliac-aneurysms
#1
Susanna Hewon Shin, Benjamin Ware Starnes
BACKGROUND: Up to 40% of abdominal aortic aneurysms (AAAs) have coexistent iliac artery aneurysms (IAAs). In the past, successful endovascular repair required internal iliac artery (IIA) embolization, which can lead to pelvic or buttock ischemia. This study describes a technique that uses a readily available solution with a minimally altered off-the-shelf bifurcated graft in the IAA to maintain IIA perfusion. METHODS: From August 2009 to May 2015, 14 patients with AAAs and coexisting IAAs underwent repair with a bifurcated-bifurcated approach...
May 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28484713/quantitative-aortic-distensibility-measurement-using-ct-in-patients-with-abdominal-aortic-aneurysm-reproducibility-and-clinical-relevance
#2
Yunfei Zha, Gongling Peng, Liang Li, Chunying Yang, Xuesong Lu, Zhoufeng Peng
Purpose. To investigate the reproducibility of aortic distensibility (D) measurement using CT and assess its clinical relevance in patients with infrarenal abdominal aortic aneurysm (AAA). Methods. 54 patients with infrarenal abdominal aortic aneurysm were studied to determine their distensibility by using 64-MDCT. Aortic cross-sectional area changes were determined at two positions of the aorta, immediately below the lowest renal artery (level 1.) and at the level of its maximal diameter (level 2.) by semiautomatic segmentation...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28479444/intraoperative-type-iiib-endoleak-after-endograft-deployment-during-evar
#3
Konstantinos G Moulakakis, John Kakisis, George Geroulakos, Elias N Brountzos
Type IIIb endoleak usually occurs years after the initial endograft implantation and the cause is the chronic fatigue of the endograft. This rare case describes a type IIIb endoleak, appearing immediately after deployment of a new generation low profile stentgraft and highlights the diagnostic and treatment challenges associated with the type IIIb endoleak. A 74 years old man underwent elective EVAR for an infrarenal abdominal aortic aneurysm. A type IIIb endoleak near to the flow divider due to a fabric defect was diagnosed...
May 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28479434/giant-infrarenal-aortic-aneurysm-rupture-preceded-by-left-lower-limb-motor-deficit
#4
Sasarman Vasile Aurelian, Molnar Adrian, Andercou Aurel, Schjoth Bruno, Oprea Alexandru, Trifan Catalin, Bindea Dan
This report presents the surgical repair and postsurgical outcomes following a ruptured infrarenal aortic aneurysm with a maximum transverse diameter of 20 cm. Its association with acute lower limb motor deficit is rare. Open surgery of giant abdominal aortic aneurysms is often the only available treatment, favored over an endovascular approach in the presence of increased aneurysm size with dislodged abdominal organs, adhesions, and short and angled proximal infrarenal aortic neck, presenting significant additional surgical and anesthesiological challenges...
May 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28433338/morbidity-of-endovascular-abdominal-aortic-aneurysm-repair-is-directly-related-to-diameter
#5
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
#6
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
#7
Masayuki Sugimoto, Akio Koyama, Kiyoaki Niimi, Akio Kodama, Hiroshi Banno, Kimihiro Komori
BACKGROUND: Although recent guidelines recommend endovascular aneurysm repair (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 (AAAs) 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 6, 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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
Guohua Hu, Zhihui Dong, Weiguo Fu
BACKGROUND: To create a novel procedure that will decrease the mortality of experimental animals in the intraarterial infusion of elastase abdominal aortic aneurysm (AAA) model. METHODS: Novel models were created by means of direct puncture in the infrarenal abdominal aortic aorta, intraluminal elastase in the 1-cm 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 11, 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
#16
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
#17
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
#18
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
#19
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
#20
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
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