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infrarenal abdominal aortic aneurysm

Junichiro Hashimoto
The central aorta constitutes the main trunk of the systemic arterial tree. It dilates passively with cardiac ejection during systole and then constricts with its recoil function during diastole, thereby regulating blood pressure and blood flow. The central pulsatile hemodynamics affects local hemodynamics within as well as downstream of the aorta (e.g., end organs).The aorta progressively stiffens and dilates with advancing age, and such age-dependent change is accelerated by hypertension. According to the law of Laplace, wall stress depends on the diameter and pressure of the blood vessel...
September 2016: Journal of Hypertension
J J Jiang, H K Qing, X M Zhang, X M Zhang, W Li, C Y Shen, Q L Li, Y Jiao
OBJECTIVE: To compare total percutaneous access using preclose technique with femoral artery cut-down in endovascular aneurysm repair (EVAR) and assess the safety and feasibility of preclose technique. METHODS: In the study, 81 cases undergoing EVAR from Dec. 2011 to Nov. 2014 in Peking University People's Hospital were retrospectively reviewed. Preoperative CT angiography (CTA) showed presence of infrarenal abdominal aortic aneurysm or descending aortic aneurysm in all the cases...
October 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
Koichi Morisaki, Takuya Matsumoto, Yutaka Matsubara, Kentaro Inoue, Yukihiko Aoyagi, Daisuke Matsuda, Shinichi Tanaka, Jun Okadome, Yoshihiko Maehara
We herein report a case of a rare complication of spinal cord ischemia (SCI) following endovascular aneurysm repair (EVAR). Computed tomography showed stenosis and calcification of bilateral iliac arteries and a saccular aneurysm of the terminal aorta. Paraplegia occurred soon after balloon angioplasty of iliac arteries and EVAR. Cerebrospinal fluid drainage was not performed because the patient was on dual antiplatelet drugs. The patient was treated with intravenous methylpredonisolone and naloxone; however, this did not improve his paraplegia...
2016: Annals of Vascular Diseases
Mircea Beuran, Ionut Negoi, Ruxandra Irina Negoi, Sorin Hostiuc, Sorin Paun
A 59 year-old patient was admitted with upper gastrointestinal bleeding. The clinical exam showed mild hypotension and blood samples revealed acute anemia (hemoglobin = 7.5 g/dl). Emergency computed tomography showed an infrarenal abdominal aortic aneurysm and extravasation of the arterial contrast material toward the digestive tract. The patient was transported to the operating room for emergency laparotomy, which showed an aortoduodenal fistula. After proximal and distal aortic vascular control, the two anatomical structures were dissected with duodenorrhaphy, patch repair of the aortic tear and omentum interposition...
May 2016: Brazilian Journal of Cardiovascular Surgery
Vinay Kansal, Sudhir Nagpal
OBJECTIVES: To report a rare case of delayed Type IIIb endoleak secondary to fabric tear following implantation of a Medtronic Talent endovascular device. METHODS: A 83-year old gentleman underwent elective endovascular aneurysm repair for infrarenal abdominal aortic aneurysm with a Medtronic bifurcated stent graft in 2008. RESULTS: Seven years after the initial repair, imaging surveillance revealed significant endoleak and brisk aneurysm sac expansion due to Type IIIb endoleak secondary to endograft limb fabric tear...
2016: SAGE Open Med Case Rep
Sara L Zettervall, Klaas H J Ultee, Peter A Soden, Sarah E Deery, Katie E Shean, Alexander B Pothof, Mark Wyers, Marc L Schermerhorn
OBJECTIVE: Renal complications after repair of abdominal aortic aneurysms (AAAs) have been associated with increased morbidity and mortality. However, limited data have assessed risk factors for renal complications in the endovascular era. This study aimed to identify predictors of renal complications after endovascular AAA repair (EVAR) and open repair. METHODS: Patients who underwent EVAR or open repair of a nonruptured infrarenal AAA between 2011 and 2013 were identified in the National Surgical Quality Improvement Project Targeted Vascular module...
September 26, 2016: Journal of Vascular Surgery
Elizabeth Manuely González Revilla, Araceli Abad Fernandez, María Teresa Río Ramirez, Sara Calero Pardo, María Antonia Juretschke Moragues
Granulomatosis with polyangiitis (GPA) is the name that has been used in recent years for Wegener's granulomatosis. This condition is a systemic inflammatory disease characterised by necrotizing vasculitis that affects small and medium-sized blood vessels (capillaries, arterioles, venules and arteries). The granulomatous inflammation affects the respiratory system; it also commonly affects the kidney and can very rarely affect large vessels such as the aorta and the surrounding retroperitoneal tissue. Early diagnosis and treatment is of vital importance because of the high risk of dissection and of obstruction of retroperitoneal structures...
2016: Respiratory Medicine Case Reports
Andrea Siani, Federico Accrocca, Gennaro De Vivo, Federica Mounayergi, Luca Maria Siani, Roberto Antonelli
The Ovation Abdominal Stent Graft System is a trimodular endoprosthesis planned to overcome the limitations of currently available stent grafts, allowing through complex iliac and femoral access and providing a proximal seal in challange infrarenal neck morphology. The proximal sealing is achieved by means of a network of inflatable rings filled with low-viscosity radiopaque polyethylene glycol (PEG) based polymer during stent graft deployment. The leakage of polymer outside the channel to fill the rings into the vascular system may induce an hypersensitivity reaction and anaphylactic shock...
September 23, 2016: Annals of Vascular Surgery
Kak Khee Yeung, Menno Groeneveld, Joyce Ja-Ning Lu, Pepijn van Diemen, Vincent Jongkind, Willem Wisselink
Open surgical repair of an aortic aneurysm requires aortic cross-clamping, resulting in temporary ischemia of all organs and tissues supplied by the aorta distal to the clamp. Major complications of open aneurysm repair due to aortic cross-clamping include renal ischemia-reperfusion injury and postoperative colonic ischemia in case of supra- and infrarenal aortic aneurysm repair. Ischemia-reperfusion injury results in excessive production of reactive oxygen species and in oxidative stress, which can lead to multiple organ failure...
September 2016: Best Practice & Research. Clinical Anaesthesiology
Junichiro Hashimoto
The central aorta constitutes the main trunk of the systemic arterial tree. It dilates passively with cardiac ejection during systole and then constricts with its recoil function during diastole, thereby regulating blood pressure and blood flow. The central pulsatile hemodynamics affects local hemodynamics within as well as downstream of the aorta (e.g., end organs).The aorta progressively stiffens and dilates with advancing age, and such age-dependent change is accelerated by hypertension. According to the law of Laplace, wall stress depends on the diameter and pressure of the blood vessel...
September 2016: Journal of Hypertension
R I Khabazov, A V Chupin, R V Kolosov, S V Deriabin
Endovascular repair of the abdominal aorta is a method of choice in pronounced concomitant pathology and high risk of open surgical treatment. The article deals with a clinical case report of successful surgical management of a patient with an infrarenal aortic aneurysm, transplanted kidney, chronic renal insufficiency, secondary diabetes mellitus, multifocal atherosclerosis with predominant involvement of coronary arteries and lower-limb arteries, in whom open surgical treatment was associated with high risk...
2016: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
Håkan Ohlsson, Anders Gottsäter, Tim Resch, Björn Sonesson, Per Kjellin, Tomas Wetterling, Jan Holst
BACKGROUND: Ultrasound screening for abdominal aortic aneurysms (AAA) has been shown to decrease aneurysm related mortality. Likely by providing an opportunity to intervene while the an- eurysm is still intact, but possibly also when and the anatomy still relatively uncomplicated which would provide a less complex procedure. Our aim was to retrospectively investigate the complexity of repair for screening-detected AAAs in a cohort of 65-year-old men. METHODS: All screening detected AAA cases that underwent repair between Sept 2010 and June 2014 in the most southern region of Sweden were included...
September 6, 2016: International Angiology: a Journal of the International Union of Angiology
Taro Hayashi, Satoshi Tobe, Hironobu Sugiyama, Shinichi Ijyuin, Masahiro Yamaguchi, Masato Yamaguchi, Takanori Oka, Takuya Misato, Kotaro Tsunemi, Nobuhiro Tanimura
A 77-year-old man with a history of stent implantation in the right common iliac artery(CIA) and the left external iliac artery(EIA) was admitted to our hospital for a rapid growth of an aneurysm( max 53 mm) at Th11 level of the descending aorta. Although thoracic endovascular aortic repair (TEVAR) was required, there were many problems about access rout. The infrarenal abdominal aorta and the left EIA were severely calcified, and the lumens of the right CIA stent(5.3 mm) and the left EIA stent( 4.3 mm) were small in size...
September 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
Qasam M Ghulam, Kim K Bredahl, Jørgen B Gram, Lars Lönn, Jens P Goetze, Henrik H Sillesen, Jonas P Eiberg
OBJECTIVES: Disruption of the endothelial lining may be one of the events linking intraluminal thrombus and abdominal aortic aneurysm growth. In the present study, we examined whether von Willebrand factor activity in plasma, contact proteins of blood coagulation, and inflammatory biomarkers may be associated with intraluminal thrombus volume in search of a biochemical marker of endothelial damage and thrombus size. DESIGN: Prospective study, correlating potential endothelial biomarkers and intraluminal thrombus volume acquired by computed tomography angiography...
August 2016: Vascular and Endovascular Surgery
Daphne Elisabeth Gray, Markus Eisenack, Michael Gawenda, Giovanni Torsello, Payman Majd, Jan Brunkwall, Nani Osada, Konstantinos P Donas
OBJECTIVE: The influence of endovascular aneurysm repair (EVAR) on renal function is of high concern. The question whether stent graft fixation type plays a significant role in renal outcome after EVAR is still debated. However, other factors, such as repeated contrast medium exposure, should also be considered. METHODS: We performed a two-center, stratified-cohort case control study to evaluate the influence of last-generation abdominal endografts with suprarenal (SR) vs infrarenal (IR) fixation on renal function...
August 26, 2016: Journal of Vascular Surgery
Saissan Rajendran, James May
OBJECTIVE: The purpose of this study was to compare findings at presentation and surgical outcomes in patients in whom abdominal aortic aneurysms (AAAs) ruptured after endovascular repair and in patients in whom AAAs ruptured before any treatment during a defined period at a single center. METHODS: This is a retrospective analysis of consecutive patients who presented to Royal Prince Alfred Hospital with ruptured AAA from September 2003 to September 2014. Medical records of each patient were reviewed to retrieve demographics, findings at presentation, and surgical outcome...
August 26, 2016: Journal of Vascular Surgery
Drosos Kotelis, Karina Schleimer, Houman Jalaie, Jochen Grommes, Michael J Jacobs, Johannes Kalder
PURPOSE: To report operative and midterm outcomes of fenestrated endovascular aneurysm repair (FEVAR) with the Anaconda device. METHODS: A retrospective analysis was conducted of 39 consecutive patients (median age 74 years; 36 men) treated with the fenestrated Anaconda stent-graft between July 2011 and December 2015 at a single center. Indications for FEVAR were abdominal aortic aneurysms (AAAs) with neck anatomy unsuitable for a standard stent-graft. Median infrarenal neck length was 4 mm (range 0-9)...
August 29, 2016: Journal of Endovascular Therapy
Esved Vele, Admir Kurtcehajic, Enver Zerem, Josip Maskovic, Ervin Alibegovic, Ahmed Hujdurovic
BACKGROUND: The natural course of abdominal aortic aneurysm (AAA) is mostly asymptomatic and unpredictable. D-dimer could provide potentially important information about subsequent AAA progression. OBJECTIVES: The aims of this study were to establish the relationship between the progression of an abdominal aortic aneurysm (AAA) and plasma D-dimer concentration over a 12-month period and determine the value of plasma D-dimer in patients with sub-aneurysmal aortic dilatation...
August 27, 2016: Journal of Thrombosis and Haemostasis: JTH
Jahir Richard DE Oliveira, Maurício DE Amorim Aquino, Svetlana Barros, Guilherme Benjamin Brandão Pitta, Adamastor Humberto Pereira
OBJECTIVE: to determine the blood flow pattern changes after endovascular treatment of saccular abdominal aortic aneurysm with triple stent. METHODS: we conducted a hemodynamic study of seven Landrace and Large White pigs with saccular aneurysms of the infrarenal abdominal aorta artificially produced according to the technique described. The animals were subjected to triple stenting for endovascular aneurysm. We evaluated the pattern of blood flow by duplex scan before and after stent implantation...
May 2016: Revista do Colégio Brasileiro de Cirurgiões
Gustavo José Politzer Telles, Álvaro Razuk Filho, Walter Khegan Karakhanian, Paulo Fernandes Saad, Karen Ruggeri Saad, Jong Hun Park, Leticia Cristina Dalledone Siqueira, Roberto Augusto Caffaro
OBJECTIVE: Endovascular techniques to treat abdominal aortic aneurysms results in lower morbidity and mortality rates. However, dilation of the common iliac arteries prevents adequate distal sealing, which compromises the procedure success. The aim of this study is report the long-term outcomes of patients with abdominal aortic aneurysms associated with aneurysm of the common iliac artery following endovascular repair using a bifurcated bell-bottom stent graft. METHODS: This is a retrospective study that evaluated patients treated with bifurcated bell-bottom extension stent grafts to repair an infrarenal abdominal aortic aneurysm and who had at least one common iliac artery with dilatation > 1...
April 2016: Brazilian Journal of Cardiovascular Surgery
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