Evaluation of Peak Wall Stress in an Ascending Thoracic Aortic Aneurysm Using FSI Simulations: Effects of Aortic Stiffness and Peripheral Resistance

ConclusionsThis is the first time that the risk of rupture of an aTAA is quantified in case of the combined effects of hypertension and aortic stiffness increase. Our findings suggest that a stiffer TAA may have the most altered distribution of wall stress and an acute change of peripheral vascular resistance could significantly increase the risk of rupture for a stiffer aneurysm.
Source: Cardiovascular Engineering and Technology - Category: Cardiology Source Type: research

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ConclusionWe present a case of TS associated RAS and AAA treated by renal artery bypass and aortic graft repair with favorable outcome. Our surgical approach may delay progression of renal insufficiency in patients with renovascular hypertension and TS.
Source: Journal of Pediatric Surgery Case Reports - Category: Surgery Source Type: research
k M Abstract OBJECTIVES: Abdominal compartment syndrome (ACS) is a serious complication after abdominal aortic aneurysm (AAA) repair. The aim was to investigate outcome among subgroups and factors associated with outcome, with emphasis on the duration of intra-abdominal hypertension before treatment. METHODS: Since 2008, ACS and decompressive laparotomy (DL) after AAA repair are registered prospectively in the Swedish vascular registry (Swedvasc). Registry data and case records were reviewed. Subgroups were defined by main pathophysiological finding at DL, timing of DL after AAA repair, and treatment modality...
Source: PubMed: Eur J Vasc Endovasc ... - Category: Surgery Authors: Tags: Eur J Vasc Endovasc Surg Source Type: research
Abdominal compartment syndrome (ACS) is a serious complication after abdominal aortic aneurysm (AAA) repair. The aim was to investigate outcome among subgroups and factors associated with outcome, with emphasis on the duration of intra-abdominal hypertension before treatment.
Source: European Journal of Vascular and Endovascular Surgery - Category: Surgery Authors: Source Type: research
Publication date: Available online 31 July 2019Source: The Annals of Thoracic SurgeryAuthor(s): Sherene Shalhub, Mary J. Roman, Kim A. Eagle, Scott A. LeMaire, Qianzi Zhang, Artur Evangelista, Dianna M. Milewicz, Genetically Triggered Thoracic Aortic Aneurysms and Cardiovascular Conditions (GenTAC) ConsortiumAbstractBackgroundTo investigate clinical course of patients with TBAD occurring at a young age with confirmed or suspected heritable thoracic aortic diseaseMethodsIndividuals with TBAD occurring at an age
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
Rationale: Abdominal aortic aneurysm is an extremely rare cause of deep vein thrombosis. Here we report an elderly gentleman who presented with deep vein thrombosis and was found to have concomitant abdominal aortic aneurysm upon ultrasonographic screening. It illustrates the possibility of such an aetiology, and the importance of screening for such aneurysms in a select patient population before heparinization. Patient concerns: A 73-year-old Asian gentleman with underlying hypertension, hyperlipidaemia, chronic renal failure, and history of chronic smoking presented to the emergency department with acute left lower ...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research
Rationale: Vasculitis is one of the common pathological hallmarks of systemic lupus erythematosus (SLE). Vascular lesions in SLE commonly involve medium- and small-sized vessels. Rarely, vasculitis in SLE may involve large vessels such as the aorta leading to life-threatening complications. Reported cases of large vessel lesions in SLE included aortic aneurysm and aortic dissection. Patient concerns: Here, we report a 52-year-old Chinese woman with SLE, who was stable on oral glucocorticoid, but showed sudden intractable hypertension and heavy proteinuria before we found aorta coarctation in her computed tomography (C...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research
A 75-year-old morbidly obese man presented with increasing diameter of a known abdominal aortic aneurysm (AAA) and right common iliac artery aneurysm. He was diagnosed with these aneurysms at the age of 69  years while undergoing computed tomography for evaluation of pancreatic cancer. At the time of diagnosis, the AAA diameter was 3.9 cm. His past medical history was significant for hypertension and hyperlipidemia. He was observed with serial aortoiliac duplex ultrasound scans. By November 2018 (6  years after the original diagnosis), the AAA diameter increased to 6.3 cm and the right common iliac arte...
Source: Journal of Vascular Surgery - Category: Surgery Authors: Tags: Vascular images Source Type: research
​BY JENNIFER TUONG; IVAN KHARCHENKO; JEAN LUC AGARD; &AHMED RAZIUDDIN, MDA 65-year-old man who had HIV well-controlled with highly active antiretroviral therapy, hypertension, sciatica, and restless leg syndrome presented to the emergency department with left leg pain. He also had had chemotherapy and radiation for anal cancer. The patient said the pain had started 45 minutes earlier when he was sitting on the toilet.He described the pain as sore in quality and 10/10 on the pain scale. He reported that it had started in his lower back and radiated to his left leg. He said he had had no trauma or weakness to the regio...
Source: The Case Files - Category: Emergency Medicine Tags: Blog Posts Source Type: research
AbstractA 79-year-old man with a history of arterial hypertension, insulin-dependent diabetes mellitus, renal insufficiency and thoracic endovascular aortic repair (TEVAR) was brought to the emergency department, following an episode of oliguria and urine retention. During chest X-ray he suddenly collapsed and died. Autopsy revealed a large atherosclerotic saccular thoracic aortic aneurysm whose right lateral wall firmly adhered to the right lung. There was more than 2.5  l of blood with fibrin deposits in the right part of the thoracic cavity. The right bronchus contained a cast of blood; blood was also present in th...
Source: Forensic Science, Medicine, and Pathology - Category: Forensic Medicine Source Type: research
Ye Chean Teh1,2, Jeak Ling Ding2, Lai Guan Ng1,3,4 and Shu Zhen Chong1* 1Functional Immune Imaging, Singapore Immunology Network (SIgN), A*STAR (Agency for Science, Technology and Research), Biopolis, Singapore 2Department of Biological Sciences, National University of Singapore (NUS), Singapore, Singapore 3Department of Microbiology &Immunology, Immunology Programme, Life Science Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore 4School of Biological Sciences, Nanyang Technological University, Singapore, Singapore Monocytes are a subset of cells that are ca...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
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