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https://www.readbyqxmd.com/read/28441922/fluid-displacement-from-intraluminal-thrombus-of-abdominal-aortic-aneurysm-as-a-result-of-uniform-compression
#1
Kim van Noort, Richte Cl Schuurmann, Bryan Wermelink, Cornelis H Slump, Karel C Kuijpers, Jean-Paul Pm de Vries
Objectives The results after aneurysm repair with an endovascular aneurysm sealing (EVAS) system are dependent on the stability of the aneurysm sac and particularly the intraluminal abdominal aortic thrombus (ILT). The postprocedural ILT volume is decreased compared with preprocedural ILT volume in aortic aneurysm patients treated with EVAS. We hypothesize that ILT is not stable in all patients and pressurization of the ILT may result in displacement of fluids from the ILT, no differently than serum is displaced from whole blood when it settles...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28433338/morbidity-of-endovascular-abdominal-aortic-aneurysm-repair-is-directly-related-to-diameter
#2
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/28416191/assessment-of-international-outcomes-of-intact-abdominal-aortic-aneurysm-repair-over-9-years
#3
J Budtz-Lilly, M Venermo, S Debus, C-A Behrendt, M Altreuther, B Beiles, Z Szeberin, N Eldrup, G Danielsson, I Thomson, P Wigger, M Björck, I Loftus, K Mani
BACKGROUND: Case mix and outcomes of complex surgical procedures vary over time and between regions. This study analyses peri-operative mortality after intact abdominal aortic aneurysm (AAA) repair in 11 countries over 9 years. METHODS: Data on primary AAA repair from vascular surgery registries in 11 countries for the years 2005-2009 and 2010-2013 were analysed. Multivariate adjusted logistic regression analyses were carried out to adjust for variations in case mix...
April 13, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28416190/flow-mediated-dilatation-and-progression-of-abdominal-aortic-aneurysms
#4
R Lee, K Bellamkonda, A Jones, N Killough, F Woodgate, M Williams, I Cassimjee, A Handa
OBJECTIVE/BACKGROUND: Biomarker(s) for prediction of the future progression rate of abdominal aortic aneurysms (AAA) may be useful to stratify the management of individual patients. AAAs are associated with features of systemic inflammation and endothelial dysfunction. Flow mediated dilatation (FMD) of the brachial artery is a recognised non-invasive measurement for endothelial function. We hypothesised that FMD is a potential biomarker of AAA progression and reflects the temporal changes of endothelial function during AAA progression...
April 13, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28412911/pharmacological-therapy-of-abdominal-aortic-aneurysm-an-update
#5
Yi-Dong Wang, Zhen-Jie Liu, Jun Ren, Mei-Xiang Xiang
Abdominal aortic aneurysm (AAA), a progressive segmental abdominal aortic dilation, is associated with high mortality. AAA is characterized by inflammation, smooth muscle cell (SMC) depletion and extracellular matrix (ECM) degradation. Surgical intervention and endovascular therapy are recommended to prevent rupture of large AAAs. Unfortunately, there is no reliable pharmacological agent available to limit AAA expansion. In the past decades, extensive investigations and a body of ongoing clinical trials aimed at defining potent treatments to inhibit and even regress AAA growth...
April 13, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28406184/monocytes-and-macrophages-in-abdominal-aortic-aneurysm
#6
REVIEW
Juliette Raffort, Fabien Lareyre, Marc Clément, Réda Hassen-Khodja, Giulia Chinetti, Ziad Mallat
Abdominal aortic aneurysm (AAA) is a life-threatening disease associated with high morbidity, and high mortality in the event of aortic rupture. Major advances in open surgical and endovascular repair of AAA have been achieved during the past 2 decades. However, drug-based therapies are still lacking, highlighting a real need for better understanding of the molecular and cellular mechanisms involved in AAA formation and progression. The main pathological features of AAA include extracellular matrix remodelling associated with degeneration and loss of vascular smooth muscle cells and accumulation and activation of inflammatory cells...
April 13, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/28400556/precise-treatment-of-aortic-aneurysm-by-three-dimensional-printing-and-simulation-before-endovascular-intervention
#7
Ding Yuan, Han Luo, Hongliu Yang, Bin Huang, Jingqiang Zhu, Jichun Zhao
In this study, three-dimensional printing (3Dp) models and simulation surgeries (SSs) were applied in two challenging aortic cases. The first was an abdominal aortic aneurysm with a complex neck, and the second was a thoracic aortic dissection aneurysm (TADA) with an angled arch. In order to avoid unpredictable obstacles and difficulties, we made optimal surgical plans by using 3D models and virtual simulations. Based on preoperative evaluation system, the surgical plans seemed more reasonable and time-saving...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28395595/preoperative-risk-factors-for-aneurysm-sac-expansion-caused-by-type-2-endoleak-after-endovascular-aneurysm-repair
#8
Koichi Morisaki, Terutoshi Yamaoka, Kazuom Iwasa, Takahiro Ohmine, Atsushi Guntani
Purpose The objective of this study was to investigate the preoperatively definable risk factors which predict the aneurysm sac expansion caused by persistent type 2 endoleak after endovascular aneurysm repair. Methods Between 2008 and 2014, retrospective analysis was performed to examine the predictive risk factors for aneurysm sac enlargement caused by persistent type 2 endoleak, which was defined as a continuous endoleak present for more than six months. Aneurysm sac expansion was diagnosed if the maximum transverse diameter increased by 5 mm or more compared with the preoperative measurement...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28393672/radiation-awareness-for-endovascular-abdominal-aortic-aneurysm-repair-in-the-hybrid-operating-room-an-instant-patient-risk-chart-for-daily-practice
#9
Quirina M de Ruiter, Crystel M Gijsberts, Constantijn E Hazenberg, Frans L Moll, Joost A van Herwaarden
PURPOSE: To determine which patient and C-arm characteristics are the strongest predictors of intraoperative patient radiation dose rates (DRs) during endovascular aneurysm repair (EVAR) procedures and create a patient risk chart. METHODS: A retrospective analysis was performed of 74 EVAR procedures, including 16,889 X-ray runs using fixed C-arm imaging equipment. Four multivariate log-linear mixed models (with patient as a random effect) were constructed. Mean air kerma DR (DRAK, mGy/s) and the mean dose area product DR (DRDAP, mGycm(2)/s) were the outcome variables utilized for fluoroscopy as differentiated from digital subtraction angiography (DSA)...
April 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28392057/trend-break-in-abdominal-aortic-aneurysm-repair-with-decreasing-surgical-workload
#10
F Lilja, K Mani, A Wanhainen
BACKGROUND: The epidemiology and management of abdominal aortic aneurysms (AAAs) has changed drastically in the past decades, with implementation of nationwide screening programs, introduction of endovascular repair (EVAR), and reduced prevalence of the disease. This report aims to assess recent trends in AAA repair epidemiology in Sweden in this context. METHODS: Primary AAA repairs registered in the nationwide Swedish Vascular Registry (Swedvasc) 1994-2014 were analyzed regarding patient characteristics, repair incidence, technique, and outcome...
April 5, 2017: European Journal of Vascular and Endovascular 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
#11
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/28390913/could-preoperative-neck-anatomy-influence-follow-up-of-evar
#12
A Giménez-Gaibar, E González-Cañas, T Solanich-Valldaura, C Herranz-Pinilla, S Rioja-Artal, E Ferraz-Huguet
OBJECTIVE: Assess the clinical utility of strict CT-scan surveillance at 1, 6, 12 and 24 months after endovascular abdominal aneurysm repair (EVAR). Consider whether the anatomy of abdominal aortic aneurysm (AAA) neck (favourable/hostile) requires more imaging control. METHODS: Retrospective study 2006-2013. AAA patients who underwent EVAR with aortobiiliac endoprostheses. EXCLUSION CRITERIA: Other types of devices, hybrid techniques, open surgery...
April 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28389289/pre-operative-risk-factors-predict-protracted-hospital-length-of-stay-after-elective-endovascular-abdominal-aortic-aneurysm-repair
#13
Elizabeth G King, Alik Farber, Denis Rybin, Gheorghe Doros, Jeffrey A Kalish, Mohammad H Eslami, Jeffrey J Siracuse
INTRODUCTION: One of the main advantages of endovascular abdominal aortic aneurysm repair (EVAR) is shorter post-operative hospital length of stay (LOS) compared to open repair. However, patients with pre-existing conditions may be predisposed to a protracted LOS. Our aim was to identify pre-operative risk factors for prolonged post-operative LOS after elective EVAR. METHODS: The American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) database (2005-2013) was used to analyze all patients undergoing elective EVAR without adjunctive procedures...
April 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28389284/management-of-a-large-abdominal-aortic-aneurysm-in-conjunction-with-a-massive-inguinal-hernia
#14
Sarah M Wartman, Karen Woo, Michael Brewer, Fred A Weaver
The majority of inguinal hernias that are concomitant with abdominal aortic aneurysms (AAA) are clinically insignificant. However, management of AAA associated with a complex hernia can be challenging. We report a case of a 72-year-old male with a 7 cm AAA and a massive inguinal hernia involving loss of abdominal domain. Using a multidisciplinary approach, a staged hybrid endovascular and open repair of the AAA was performed followed by hernia repair.
April 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28388740/-endovascular-treatment-of-abdominal-aortic-aneurysms
#15
Christian-Alexander Behrendt, Henrik Christian Rieß, Franziska Heidemann, Tilo Kölbel, Eike Sebastian Debus
No abstract text is available yet for this article.
April 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28386748/open-and-endovascular-elective-treatment-of-abdominal-aortic-aneurysms-a-real-world-experience
#16
Daniela Mazzaccaro, Giovanni Nano, Alberto M Settembrini, Michele Carmo, Raffaello Dallatana, Simone Salvati, Giovanni Malacrida, Piergiorgio G Settembrini
PURPOSE: To present a real-world experience of the elective treatment of abdominal aortic aneurysms (AAAs) using both open repair (OR) and endovascular repair (EVAR). METHODS: Data from patients treated consecutively between January 1, 2000 and December 31, 2014 were collected retrospectively and reviewed. The primary outcomes were 30-day mortality and complication rates, freedom from reintervention, and survival in the long-term. RESULTS: We analyzed data on 1112 patients (660 EVAR, 452 OR)...
April 6, 2017: Surgery Today
https://www.readbyqxmd.com/read/28383226/-patient-volume-and-quality-in-surgery-for-abdominal-aortic-aneurysm
#17
Astrid Austvoll-Dahlgren, Vigdis Underland, Gyri Hval Straumann, Louise Forsetlund
BACKGROUND Patient volume is assumed to affect quality, whereby complex procedures are best performed by those who perform them frequently. We have conducted a systematic review of the research on the association between patient volume and quality of vascular surgery. In this article we describe the outcomes for abdominal aortic aneurysm surgery.MATERIAL AND METHOD We undertook systematic searches in relevant databases. We searched for systematic reviews, and randomised and observational studies. The search was concluded in December 2015...
April 2017: Tidsskrift for Den Norske Lægeforening: Tidsskrift for Praktisk Medicin, Ny Række
https://www.readbyqxmd.com/read/28377913/acute-type-b-aortic-dissection-in-a-patient-with-previous-endovascular-abdominal-aortic-aneurysm-repair
#18
Sung Hun Park, Seung-Woon Rha
Endovascular aortic repair (EVAR) was relatively safe, and became a widely performed procedure. If aortic dissection (AD) occurred in patient with previous EVAR, it could cause fatal complications like endograft collapse. Surgical treatment was limited in this situation for comorbidities and complex anatomies. Here we report a rare case of acute type B AD developed following trans-radial coronary intervention in a patient with previous EVAR of abdominal aortic aneurysm, which was treated with thoracic EVAR.
March 2017: Vascular Specialist International
https://www.readbyqxmd.com/read/28377909/measuring-of-abdominal-aortic-aneurysm-with-three-dimensional-computed-tomography-reconstruction-before-endovascular-aortic-aneurysm-repair
#19
Yoona Chung, Jin Hyun Joh, Ho-Chul Park
PURPOSE: Conventional computed tomography (CT) is the gold standard method for case planning for endovascular aortic aneurysm repair (EVAR). However, aortography with a marking catheter is needed for measuring the actual length of an aneurysm. With advances in imaging technology, a 3-dimensional (3D) workstation can obviate the need for the aortography. The objective of this study was to determine whether a 3D workstation could obviate the need for aortography for EVAR. MATERIALS AND METHODS: One vascular surgeon and 1 interventional radiologist retrospectively assessed axial CT scans and reformatted the 3D CT scans by using the iNtuition workstation (TeraRecon Inc...
March 2017: Vascular Specialist International
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
#20
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
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