Results 61 to 70 of about 17,668 (270)
Wall shear stress and pressure patterns in aortic stenosis patients with and without aortic dilation captured by high-performance image-based computational fluid dynamics [PDF]
arXiv, 2022 Spatial patterns of elevated wall shear stress and pressure due to blood flow past aortic stenosis (AS) are studied using GPU-accelerated patient-specific computational fluid dynamics. Three cases of moderate AS, one with a dilated ascending aorta and two within the normal range (root diameter less than 4cm) are simulated for physiological beat cycle ...
arxiv
Aortic Coarctation in Neonates and Infants: Balloon Angioplasty or Surgical treatment?
Український журнал серцево-судинної хірургії, 2019 Coarctation of the aorta (CoA) is a discrete stenosis of the proximal thoracic aorta. The common clinical pattern is congestive heart failure in infancy.
Y. Truba +7 more
doaj +1 more source
Journal of Vascular Surgery Cases and Innovative Techniques, 2021 We have described a technique to treat iatrogenic coarctation caused by a branched thoracic endovascular aortic repair (TEVAR) procedure with a Palmaz XL stent (Palmaz Genesis; Cordis Corp, a Cardinal Health Company, Milpitas, Calif) and triple kissing ...
Wolf Eilenberg, MD, PhD +5 more
doaj
Journal of Cardiothoracic Surgery, 2019 Backround The right aortic arch and aortic coarctation are rare congenital anomalies with the incidence of 0.1% and 0.03–0.04%. We present a case report of a 51-year-old woman with the right aortic arch with aberrant left subclavian artery and ...
Frantisek Sabol +3 more
doaj +1 more source
Simulation of bifurcated stent grafts to treat abdominal aortic aneurysms (AAA) [PDF]
, 2016 In this paper a method is introduced, to visualize bifurcated stent grafts in CT-Data. The aim is to improve therapy planning for minimal invasive treatment of abdominal aortic aneurysms (AAA). Due to precise measurement of the abdominal aortic aneurysm and exact simulation of the bifurcated stent graft, physicians are supported in choosing a suitable ...
arxiv +1 more source
Effects of stenotic aortic valve on the left heart hemodynamics: a fluid-structure-electrophysiology approach [PDF]
arXiv, 2021 The aortic valve is a three-leaflet passive structure that, driven by pressure differences between the left ventricle and the aorta, opens and closes during the heartbeat to ensure the correct stream direction and flow rate. In elderly individuals or because of particular pathologies, the valve leaflets can stiffen thus impairing the valve functioning ...
arxiv
Chemistry &Biodiversity, Accepted Article.The subfamily Gomphrenoideae is composed of about 480 accepted species, many of which have been historically used as medicinal plants, reason why they have been studied in terms of chemical profile, biological activity, and safety. This review consolidates the advances in research on this subfamily over the past 47 years, emphasizing its promising ...
Dayanna Isabel Araque Gelves +3 more
wiley +1 more source
Journal of Cardiothoracic Surgery, 2018 Background A 44 year old man who presented with a history of chest pain and dyspnoea was found to have an aneurysm of the aortic root, aortic valve insufficiency, and coarctation of the aorta.
Yassir Iqbal +6 more
doaj +1 more source
Experimental Investigation of Aortic Pressure Variations Following a Simulated Thoracic Impact [PDF]
arXiv, 2021 Blunt traumatic aortic rupture is a heart injury that can occur in falls, automobile accidents, and sporting injuries involving impact to the thorax. Despite its severity and high morbidity rate, the research still does not provide a consistent description of the mechanism of rupture. In this study, a crash testing dummy with an in vitro pumping heart,
arxiv
Catheterization and Cardiovascular Interventions, EarlyView.ABSTRACT We report the case of a 3‐year‐old asymptomatic girl (12 kg, 96 cm) who was diagnosed with a large iatrogenic left ventricular pseudoaneurysm (LVP) on follow‐up ultrasound, 14 months after apical muscular ventricular septal defect (VSD) closure with a 10 mm Amplatzer Muscular VSD occluder (Abbott, USA) due to device erosion.
Raymond N. Haddad +3 more
wiley +1 more source