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https://www.readbyqxmd.com/read/28292655/a-one-dimensional-arterial-network-model-for-bypass-graft-assessment
#1
A R Ghigo, S Abou Taam, X Wang, P-Y Lagrée, J-M Fullana
We propose an arterial network model based on one-dimensional hemodynamic equations to study the behavior of different vascular surgical bypass grafts in the case of an arterial occlusive pathology: a stenosis of the Right Iliac artery. We investigate the performances of three different bypass grafts (Aorto-Femoral, Axillo-Femoral and cross-over Femoral) depending on the degree of obstruction of the stenosis. Numerical simulations show that all bypass grafts are efficient since we retrieve in each case the healthy hemodynamics downstream of the stenosed region while ensuring at the same time a global healthy circulation...
March 11, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28271560/management-of-aortic-regurgitation-and-bilateral-carotid-occlusion-in-severe-takayasu-arteritis
#2
Fabio Ramponi, Richmond W Jeremy, Michael K Wilson
We present a patient with Takayasu arteritis and severe aortic valve regurgitation and bilateral carotid artery occlusions, who underwent aortic valve replacement and aorto-bicarotid bypass. The management of the cardiovascular manifestations of Takayasu arteritis is reviewed.
March 7, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28225505/nonrevascularizable-buttock-claudication-improved-with-sildenafil-a-case-report
#3
Loukman Omarjee, Audrey Camarzana, Samir Henni, Pierre Abraham
RATIONALE: Sildenafil, a phosphodiesterase-5-inhibitor (PDE5i), could represent a new treatment in addition to the medical treatment and advice to walk in peripheral arterial disease (PAD). PATIENT CONCERNS AND DIAGNOSES: We report a case of a 62-year-old heavy smoker man who developed a buttock claudication and a severe walking limitation following an aorto-bi-femoral bypass in 1992. Since 2003, each year, he has been referred for investigation of bilateral buttock claudication on treadmill using transcutaneous oxygen pressure (tcpO2) measurement during exercise to argue for the vascular origin of the walking impairment...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28163172/endovascular-management-of-para-prosthetic-aortocaval-fistula-case-report-and-systematic-review-of-the-literature
#4
Claudio Bianchini Massoni, Giulia Rossi, Tiziano Tecchio, Paolo Perini, Antonio Freyrie
The aim of this article is to report a case of asymptomatic para-anastomotic aortocaval fistula (ACF) treated by endovascular aortic repair, and to review data of the literature on arteriovenous fistulae secondary to abdominal aortic surgery. A 78-year-old male complained of worsening pain in the right lower limb since 2 months. He presented a history of right femoropopliteal bypass for peripheral arterial occlusive disease and elective surgical treatment for a non-ruptured infrarenal aortic aneurysm (Dacron tube graft)...
February 3, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28161484/twenty-year-experience-with-aorto-enteric-fistula-repair-gastrointestinal-complications-predict-mortality
#5
Atish Chopra, Lucyna Cieciura, J Gregory Modrall, R James Valentine, Jayer Chung
BACKGROUND: Aorto-enteric fistulae (AEF) represent a lethal subset of aortic graft infections. The optimal management of AEF remains unclear. We aimed to identify predictors of morbidity and mortality. STUDY DESIGN: We performed a single-center retrospective review of consecutive AEF repairs. Demographics, co-morbidities, and peri-operative variables were obtained. Descriptive statistics, Chi-squared, Kruskall-Wallis, and Cox proportional-hazards modeling were utilized where appropriate...
February 1, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/27720301/commentary-on-long-term-results-of-totally-laparoscopic-aorto-bi-femoral-bypass
#6
S K Brunkwall, J S Brunkwall
No abstract text is available yet for this article.
November 2016: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27701003/aorto-hepatic-bypass-graft-for-repair-of-an-inferior-pancreatico-duodenal-artery-aneurysm-associated-with-coeliac-axis-occlusion-a-case-report
#7
Tom Hughes, Nikolaos A Chatzizacharias, James Richards, Simon Harper
INTRODUCTION: Inferior pancreatico-duodenal artery (IPDA) aneurysms are very rare and commonly associated with coeliac axis stenosis or occlusion due to atherosclerosis, thrombosis or median arcuate ligament syndrome. We present a case of a surgical repair of an IPDA aneurysm with the use of a supra-coeliac aorto-hepatic bypass with a polytetrafluoroethylene (PTFE) graft, following a failed initial attempt at an endovascular repair. PRESENTATION: A 75 year old female, who was under investigation for night sweats, was referred to our team with an incidental finding of a 19mm fusiform IPDA aneurysm...
September 26, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27666797/juxtarenal-inflammatory-aneurysm-treated-with-bilateral-iliac-renal-bypass-using-the-gore-hybrid-device-and-total-sealing-of-the-aneurysmal-sac-with-a-nellix-device
#8
Ombretta Martinelli, Alban Malaj, Roberto Gattuso, Luigi Irace, Bruno Gossetti
The aim of this study is to present the treatment of a juxtarenal inflammatory aneurysm using a Nellix device (Endologix, Inc., Irvine, CA) to seal the entire aneurysmatic aorta combined with bilateral iliac-renal bypass using the Gore hybrid vascular graft (W. L. Gore & Associates, Inc., Flagstaff, AZ). A 63-year-old man was diagnosed with a 6-cm juxtarenal inflammatory aneurysm. It was initially decided to treat him with an aorto-aortic bypass and to revascularize the 2 renal arteries with "graft to renal artery bypass" using Gore hybrid vascular grafts...
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27621905/mycotic-aortic-arch-aneurysm-coexistent-with-constrictive-pericarditis-is-surgery-a-dangerous-resort
#9
Peter S Y Yu, Simon C H Yu, Cheuk-Man Chu, Micky W T Kwok, Yuk-Hoi Lam, Malcolm J Underwood, Randolph H L Wong
An elderly man presented with fever and evidence of Salmonella infection, and was diagnosed to have coexisting constrictive pericarditis and mycotic aneurysm of the aortic arch. Pericardiectomy was performed under cardiopulmonary bypass with good result. To avoid deep hypothermic circulatory arrest, an aorto-brachiocephalic bypass, instead of total arch replacement, was performed. This was followed by a staged carotid-carotid bypass, thoracic endovascular stent graft placement. He was subsequently treated with prolonged antibiotics, and inflammatory marker normalized afterwards...
August 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27545033/-management-of-endo-graft-infection-following-endovascular-repair-of-abdominal-aortic-aneurysm
#10
H H Yin, M Wang, Z L Li, C Yao, Z J Hu, J S Wang, G Q Chang, S M Wang
OBJECTIVE: To summarize our experience in the management of stent-graft infection after endo-vascular aortic repair (EVAR) of abdominal aortic aneurysm (AAA). METHODS: Data of patients who were diagnosed as endo-graft infection following EVAR and admitted in our center between January 2000 and December 2015 were reviewed. Clinical records including causes of infection, medical history, re-operative procedures, and prognostic data were analysed. RESULTS: A total of 10 male patients, aged 45-72 years (averaged 62...
August 9, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27543651/surgical-management-without-resection-of-the-oesophagus-for-aorto-oesophageal-fistula-secondary-to-aortic-arch-aneurysm-rupture
#11
Atsushi Omura, Masato Yoshida, Yojiro Koda, Nobuhiko Mukohara
A 79-year-old moderately frail man with a history of graft replacement for descending thoracic aortic aneurysm and chronic kidney disease presented with the onset of haemoptysis. Computed tomography demonstrated aorto-oesophageal fistula secondary to aortic arch aneurysm rupture. Emergency surgery was performed through a median sternotomy. Cardiopulmonary bypass was established via femoral artery inflow and bicaval venous drainage. After establishing circulatory arrest, the aortic arch was excised. Resection of the aortic aneurysm and debridement were performed during antegrade cerebral perfusion and lower body perfusion from femoral artery inflow using balloon occlusion of the previous graft...
December 2016: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/27513805/aorto-oesophageal-fistula-after-oesophageal-stent-placement-in-a-patient-with-a-roux-en-y-gastric-bypass
#12
Tcc Boerlage, H S Hermanides, D E Moes, I L Tan, Gmp Houben, Yiz Acherman
A 43-year-old female patient suffered from persistent anastomotic leakage after Roux-en-Y gastric bypass for morbid obesity. Endoscopic stenting of the anastomotic leakage was performed. The patient presented with haematemesis 3 weeks later. An aorto-oesophageal fistula was diagnosed, most likely due to ulceration of the oesophageal stent. The fistula was closed with an endovascular covered aortic stent and a new gastrojejunostomy was created. One year after surgery, the patient is in good condition. Endoscopic stents are increasingly being used to treat anastomotic leakage in bariatric patients...
November 2016: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/27510329/feeling-the-right-force-how-to-contextualize-the-cell-mechanical-behavior-in-physiologic-turnover-and-pathologic-evolution-of-the-cardiovascular-system
#13
REVIEW
Maurizio Pesce, Rosaria Santoro
Although traditionally linked to the physiology of tissues in 'motion', the ability of the cells to transduce external forces into coordinated gene expression programs is emerging as an integral component of the fundamental structural organization of multicellular organisms with consequences for cell differentiation even from the beginning of embryonic development. The ability of the cells to 'feel' the surrounding mechanical environment, even in the absence of tissue motion, is then translated into 'positional' or 'social' sensing that instructs, before the organ renewal, the correct patterning of the embryos...
August 7, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27485249/impact-of-the-size-mismatch-between-saphenous-vein-graft-and-coronary-artery-on-graft-patency
#14
Yoshitaka Yamane, Naomichi Uchida, Shuhei Okubo, Hironobu Morimoto, Shogo Mukai
BACKGROUND: The saphenous vein graft (SVG) is widely used in coronary artery bypass grafting because of its availability and ease of use. However, the patency rate of the SVG grafted to the right coronary artery (RCA) is poor. Diameter mismatch between the coronary artery and SVG is an important cause of graft occlusion. In this study, we assessed how the degree of diameter mismatch affects SVG patency. METHODS: We reviewed the records of 123 patients who underwent aorto-right coronary artery bypass grafting with an SVG...
January 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27426671/emergency-revascularisation-in-a-patient-with-acute-mesenteric-ischaemia-the-role-of-open-revascularisation-and-compensatory-blood-flow
#15
Abigail H M Morbi, Ian M Nordon
PURPOSE: This case highlights the importance of timely diagnosis and management of acute mesenteric ischaemia and illustrates the compensatory mechanisms of the mesenteric vasculature. CASE REPORT: A 53-year-old female presented with fever, abdominal pain, and vomiting. The patient had no risk factors for atherosclerosis and was a non-smoker in sinus rhythm with no history of coagulopathy. She was initially treated for viral gastroenteritis. Due to lack of clinical improvement and a rising C-Reactive Protein (416), a CT scan was performed...
August 2016: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/27404373/feasibility-of-hybrid-off-pump-artery-bypass-grafting-and-transaortic-transcatheter-aortic-valve-implantation-a-case-series
#16
Imthiaz Manoly, Ragheb Hasan, Andrew Brazier, Vasim Farooq, Thomas Thompson, Devinda Karunaratne, Heather Naylor, Douglas Fraser
INTRODUCTION: Patients with complex coronary artery disease and severe aortic stenosis unsuitable for conventional cardiac surgery pose a significant treatment challenge. This is especially difficult for patients where percutaneous revascularization is technically very challenging and/or would not offer as complete revascularisation compared to surgical revascularisation. In addition, patients who are unsuitable for transfemoral transcatheter aortic valve implantation (TAVI) pose an additional technical challenge, particularly with dual antiplatelet therapy (DAPT) following percutaneous coronary intervention (PCI)...
July 12, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27386487/management-and-postoperative-outcome-in-primary-lung-cancer-and-heart-disease-co-morbidity-a-systematic-review-and-meta-analysis
#17
George D Bablekos, Antonis Analitis, Stylianos A Michaelides, Konstantinos A Charalabopoulos, Anastasia Tzonou
BACKGROUND: Co-morbidity of primary lung cancer (LC) and heart disease (HD), both requiring surgical therapy, characterizes a high risk group of patients necessitating prompt diagnosis and treatment. The aim of this study is the review of available evidence guiding the management of these patients. METHODS: Postoperative outcome of patients operated for primary LC (first meta-analysis) and for both primary LC and HD co-morbidity (second meta-analysis), were studied...
June 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/27385140/management-of-a-dislocated-endovascular-aneurysm-repair-in-a-challenging-giant-abdominal-aortic-aneurysm
#18
Joachim Geers, Geert Daenen, Patrick Stabel
Introduction A case report of a contained rupture of an abdominal aneurysm, treated by endovascular technique (EVAR), but complicated by perioperative endoprosthesis limb dislocation. Case report An 81-year old male presented at the emergency department with a contained rupture of an infrarenal aortic aneurysm and bilateral extensive iliac aneurysmatic disease. Open repair was no option, due to the pulmonary condition. The patient was prepped for an emergency EVAR. After placing a bifurcated endoprosthesis, angiography revealed a type IIIa endoleak, due to a dislocation between two left iliac extensions...
February 2016: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/27346447/long-term-results-of-totally-laparoscopic-aortobifemoral-bypass
#19
F Lecot, T Sabbe, S Houthoofd, K Daenens, I Fourneau
OBJECTIVES: The aim was to estimate the long-term results and patency rates of totally laparoscopic aortobifemoral bypass in aorto-iliac occlusive disease (AIOD). METHODS: All 87 patients who received a laparoscopic aortobifemoral bypass for AIOD on an intention to treat basis between October 2003 and October 2013 were identified. All operations were performed by the same surgical team using a totally laparoscopic technique. Demographic, pre-operative, peri-operative, and follow up variables were collected and analyzed...
November 2016: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27317034/efficacy-of-endoscopic-management-of-leak-after-foregut-surgery-with-endoscopic-covered-self-expanding-metal-stents-sems
#20
Amir H Aryaie, Jordan L Singer, Mojtaba Fayezizadeh, Jon Lash, Jeffrey M Marks
INTRODUCTION: Anastomotic or staple-line leak after foregut surgery presents a formidable management challenge. In recent years, with advancement of endoscopy, self-expanding covered stents have been gaining popularity. In this study, we aimed to determine the safety and effectiveness of self-expanding covered stents in management of leak after foregut surgery. METHODS: Consecutive patients who received a fully covered self-expandable metal stent (SEMS) due to an anastomotic leak after upper gastrointestinal surgery between 2009 and 2014 were retrospectively reviewed...
February 2017: Surgical Endoscopy
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