Bibliografías temáticas / Aortic valve stenosis (AVS)

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Literatura académica sobre el tema "Aortic valve stenosis (AVS)"

Autor: Grafiati

Publicado: 9 de noviembre de 2024

Última modificación: 31 de julio de 2025

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Artículos de revistas sobre el tema "Aortic valve stenosis (AVS)"

Frank, Rolf Dario, Regina Lanzmich, Philipp K. Haager, and Ulrich Budde. "Severe Aortic Valve Stenosis." Clinical and Applied Thrombosis/Hemostasis 23, no. 3 (2016): 229–34. http://dx.doi.org/10.1177/1076029616660759.

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Aortic valve stenosis (AVS) is the most common valve disease in adults. Severe forms are associated with acquired von Willebrand syndrome (aVWS) with loss of the largest von Willebrand factor (VWF) multimers. Diagnostic gold standard is the VWF multimer analysis. Valve replacement rapidly restores the VWF structure. Uncertainty exists if this effect is permanent and how functional VWF assays perform compared with multimer analysis. We studied 21 consecutive patients with severe AVS before and 6 to 18 months after valve surgery and compared them with 14 controls without valve disease referred f

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Rakhmanov, Yeltay, Paolo Enrico Maltese, Alessandra Zulian, et al. "Genetic testing for aortic valve stenosis." EuroBiotech Journal 2, s1 (2018): 61–63. http://dx.doi.org/10.2478/ebtj-2018-0040.

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Abstract Aortic valve stenosis (AVS) is a congenital aortic defect in which the aortic lumen narrows due to thickening or calcification of the aortic valve without obstructing left ventricular outflow. Depending on the site of obstruction, AVS is classified as valvular, sub-valvular or supra-valvular. The prevalence of AVS is about 3% and increases with age. One in eight persons over the age of 75 years has moderate or severe AVS. AVS has autosomal dominant inheritance. It can be associated with mutations in the following genes: NOTCH1, SMAD6, SMAD4, and ELN. This Utility Gene Test was develop

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Sossong, Verena, Thomas Helbing, Friedhelm Beyersdorf, et al. "Increased levels of circulating microparticles in patients with severe aortic valve stenosis." Thrombosis and Haemostasis 99, no. 04 (2008): 711–19. http://dx.doi.org/10.1160/th07-05-0334.

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SummaryThe mechanisms of the progression of aortic valve stenosis are unknown. The involvement of mononuclear cells and of chronic systemic inflammation has been suggested by analysis of pathological specimens. We hypothesize that shear stress caused by the constricted aortic orifice contributes to systemic proinflammation by activation of circulating blood cells and thereby generation of microparticles. Using flow cytometry we analyzed 22 patients with severe aortic valve stenosis (AVS) and 18 patient controls for the generation of circulating microparticles from platelet-(PMPs: CD31+/CD61+ o

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Oostveen, Reindert F., Yannick Kaiser, Erik S. G. Stroes, and Hein J. Verberne. "Molecular Imaging of Aortic Valve Stenosis with Positron Emission Tomography." Pharmaceuticals 15, no. 7 (2022): 812. http://dx.doi.org/10.3390/ph15070812.

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Aortic valve stenosis (AVS) is an increasingly prevalent disease in our aging population. Although multiple risk factors for AVS have been elucidated, medical therapies capable of slowing down disease progression remain unavailable. Molecular imaging technologies are opening up avenues for the non-invasive assessment of disease progression, allowing the assessment of (early) medical interventions. This review will focus on the role of positron emission tomography of the aortic valve with 18F-fluorodeoxyglucose and 18F-sodium fluoride but will also shed light on novel tracers which have potenti

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Perrucci, Gianluca L., Marco Zanobini, Paola Gripari, et al. "Pathophysiology of Aortic Stenosis and Mitral Regurgitation." Comprehensive Physiology 7, no. 3 (2017): 799–818. https://doi.org/10.1002/j.2040-4603.2017.tb00762.x.

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ABSTRACTThe global impact of the spectrum of valve diseases is a crucial, fast‐growing, and underrecognized health problem. The most prevalent valve diseases, requiring surgical intervention, are represented by calcific and degenerative processes occurring in heart valves, in particular, aortic and mitral valve. Due to the increasing elderly population, these pathologies will gain weight in the global health burden. The two most common valve diseases are aortic valve stenosis (AVS) and mitral valve regurgitation (MR). AVS is the most commonly encountered valve disease nowadays and affects almo

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Schnitzler, Johan G., Lubna Ali, Anouk G. Groenen, Yannick Kaiser, and Jeffrey Kroon. "Lipoprotein(a) as Orchestrator of Calcific Aortic Valve Stenosis." Biomolecules 9, no. 12 (2019): 760. http://dx.doi.org/10.3390/biom9120760.

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Aortic valve stenosis (AVS) is the most prevalent valvular heart disease in the Western World with exponentially increased incidence with age. If left untreated, the yearly mortality rates increase up to 25%. Currently, no effective pharmacological interventions have been established to treat or prevent AVS. The only treatment modality so far is surgical or transcatheter aortic valve replacement (AVR). Lipoprotein(a) [Lp(a)] has been implicated as a pivotal player in the pathophysiology of calcification of the valves. Patients with elevated levels of Lp(a) have a higher risk of hospitalization

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Bardelli, Moreno, Monica Cavressi, Giulia Furlanis, et al. "Relationship between aortic valve stenosis and the hemodynamic pattern in the renal circulation, and restoration of the flow wave profile after correction of the valvular defect." Journal of International Medical Research 48, no. 9 (2020): 030006052095690. http://dx.doi.org/10.1177/0300060520956907.

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Objective The index of maximal systolic acceleration ([AImax]: maximal systolic acceleration of the Doppler waveform divided by peak systolic velocity) shows diagnostic accuracy in screening of renal artery stenosis. This study aimed to determine whether an upstream factor of resistance, such as aortic valve stenosis (AVS), can affect Doppler parameters detected in the peripheral arteries. Methods In this prospective study, we measured the AImax in non-stenotic renal interlobar arteries of 62 patients with AVS. Patients were divided into three groups on the basis of severity of valvulopathy as

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Artiach, Gonzalo, Miguel Carracedo, Till Seime, et al. "Proteoglycan 4 is Increased in Human Calcified Aortic Valves and Enhances Valvular Interstitial Cell Calcification." Cells 9, no. 3 (2020): 684. http://dx.doi.org/10.3390/cells9030684.

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Aortic valve stenosis (AVS), a consequence of increased fibrosis and calcification of the aortic valve leaflets, causes progressive narrowing of the aortic valve. Proteoglycans, structural components of the aortic valve, accumulate in regions with fibrosis and moderate calcification. Particularly, proteoglycan 4 (PRG4) has been identified in fibrotic parts of aortic valves. However, the role of PRG4 in the context of AVS and aortic valve calcification has not yet been determined. Here, transcriptomics, histology, and immunohistochemistry were performed in human aortic valves from patients unde

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Ferrari, V., C. Mazzanti, and L. De Biase. "RELATION BETWEEN CALCIUM METABOLISM AND DEVELOPMENT OF AORTIC VALVE STENOSIS." European Heart Journal Supplements 26, Supplement_2 (2024): ii209. http://dx.doi.org/10.1093/eurheartjsupp/suae036.501.

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Abstract The role of calcium metabolism in the development of degenerative Aortic Valve Stenosis (AVS) is not completely understood. Valvular cell modifications and passive calcification can be both involved in the diseases. Vitamin D (Vit D) and Parathyroid Hormone (PTH) are important factor in calcium regulation and data on their modification in AVS are scanty. Their potential role in AVS prevention is not yet identified. Osteocalcin can be considered a marker of calcification and its potential usefulness in identification of patient at risk for AVS was not studied. In order to correlate cal

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Krzesińska, Aleksandra, Maria Nowak, Agnieszka Mickiewicz, et al. "Lipoprotein(a) As a Potential Predictive Factor for Earlier Aortic Valve Replacement in Patients with Bicuspid Aortic Valve." Biomedicines 11, no. 7 (2023): 1823. http://dx.doi.org/10.3390/biomedicines11071823.

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Bicuspid aortic valve (BAV) affects 0.5–2% of the general population and constitutes the major cause of severe aortic valve stenosis (AVS) in individuals ≤70 years. The aim of the present study was to evaluate the parameters that may provide information about the risk of AVS developing in BAV patients, with particular emphasis on lipoprotein(a) (Lp(a)), which is a well-recognized risk factor for stenosis in the general population. We also analyzed the impact of autotaxin (ATX) and interleukin-6 (IL-6) as parameters potentially related to the pathomechanism of Lp(a) action. We found that high L

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Tesis sobre el tema "Aortic valve stenosis (AVS)"

Ma, Qixiang. "Deep learning based segmentation and detection of aorta structures in CT images involving fully and weakly supervised learning." Electronic Thesis or Diss., Université de Rennes (2023-....), 2024. http://www.theses.fr/2024URENS029.

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La réparation endovasculaire des anévrismes aortiques abdominaux (EVAR) et l’implantation valvulaire aortique transcathéter (TAVI) sont des interventions endovasculaires pour lesquelles l’analyse des images CT préopératoires est une étape préalable au planning et au guidage de navigation. Dans le cas de la procédure EVAR, les travaux se concentrent spécifiquement sur la question difficile de la segmentation de l’aorte dans l’imagerie CT acquise sans produit de contraste (NCCT), non encore résolue. Dans le cas de la procédure TAVI, ils abordent la détection des repères anatomiques permettant de

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Lopez, Marco Ana. "Low-flow low-gradient aortic stenosis: outcomes after aortic valve replacement." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/667817.

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Aortic stenosis is the commonest valve disorder in the Western World. The natural history of the disease is very well described; with a decreased survival once symptoms occur. There is currently, no medical therapy available to reduce the natural progression of the aortic stenosis, and therefore, aortic valve replacement has been recognised as the standard of care treatment for symptomatic aortic stenosis, with TAVI having merged as alternative for those cases with high/prohibitive surgical risk. All types of aortic stenosis have in common a reduced valve area (AVA <1.0cm2), but depending o

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Paul, Anup K. "Assessment of the Severity of Aortic Stenosis using Aortic Valve Coefficient." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1470672658.

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Rubino, A. S. (Antonino S. ). "Efficacy of the Perceval sutureless aortic valve bioprosthesis in the treatment of aortic valve stenosis." Doctoral thesis, Oulun yliopisto, 2016. http://urn.fi/urn:isbn:9789526212289.

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Abstract Aortic valve stenosis (AS) is one of the most diffuse valvular diseases in developed countries. AS is a progressive disease, which usually results in serious life-threatening adverse events. Defining a treatment strategy for AS is a focus of cardiovascular research, although the topic is still controversial because of its related clinical and economical implications. Surgical aortic valve replacement (AVR),which is regarded as the gold standard for the treatment of severe symptomatic AS, affords excellent results, particularly in asymptomatic patients with good functional status. AVR

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Peltonen, T. (Tuomas). "Endothelial factors in the pathogenesis of aortic valve stenosis." Doctoral thesis, University of Oulu, 2008. http://urn.fi/urn:isbn:9789514289880.

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Abstract Calcified aortic valve disease represents a spectrum of disease spanning from mild aortic valve sclerosis to severe aortic valve stenosis (AS), being an actively regulated disease process and showing some hallmarks of atherosclerosis. The calcified aortic valve lesion develops endothelial injury and is characterized by inflammation, lipid accumulation, renin-angiotensin system activation and fibrosis. There is no approved pharmacological treatment available in AS. This study was aimed to characterize gene expression of endothelial factors in aortic valves in patients representing

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MOSCHETTA, DONATO. "UNRAVELLING SEX-DEPENDENT MECHANISMS IN CALCIFIC AORTIC VALVE STENOSIS." Doctoral thesis, Università degli Studi di Milano, 2022. https://hdl.handle.net/2434/947275.

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Calcific aortic valve stenosis (CAVS) is the most common form of heart valve disease and affects about 3% of the population. Its prevalence increases with age, without a causal relation between ageing and CAVS development. To date, CAVS is a slow, progressive, multifactorial disorder considered to be actively driven by several cellular and molecular processes. Its natural history consists of a long clinically silent phase of non-uniform leaflet thickening with or without minimal calcification, known as aortic valve sclerosis (AVSc), without significant obstruction of blood flow, followed by th

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Pawade, Tania Ashwinikumar. "Imaging calcification in aortic stenosis." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/29589.

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BACKGROUND Aortic stenosis is a common and potentially fatal condition in which fibro-calcific changes within the valve leaflets lead to the obstruction of blood flow. Severe symptomatic stenosis is an indication for aortic valve replacement and timely referral is essential to prevent adverse clinical events. Calcification is believed to represent the central process driving disease progression. 18F-Fluoride positron emission tomography computed tomography (PET-CT) and CT aortic valve calcium scoring (CT-AVC) quantify calcification activity and burden respectively. The overarching aim of this

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Zhao, Ying. "Effect of valve replacement for aortic stenosis on ventricular function." Doctoral thesis, Umeå universitet, Institutionen för folkhälsa och klinisk medicin, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-46809.

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Background：Aortic stenosis (AS) is the commonest valve disease in the West. Aortic valve replacement (AVR) remains the only available management for AS and results in improved symptoms and recovery of ventricular functions. In addition, it is well known that AVR results in disruption of LV function mainly in the form of reversal of septal motion as well as depression of right ventricular (RV) systolic function. The aim of this thesis was to study, in detail, the early and mid-term response of ventricular function to AVR procedures (surgical and TAVI) as well as post operative patients’ exercis

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Bagur, Rodrigo Hernan. "Transcatheter aortic valve implantation for the treatment of patients with severe symptomatic aortic stenosis." Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29420/29420.pdf.

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Fairbairn, Tim. "Severe aortic valve stenosis and the consequences of transcatheter and surgical aortic valve replacement : a cardiovascular magnetic resonance study." Thesis, University of Leeds, 2013. http://etheses.whiterose.ac.uk/5853/.

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Background: Severe symptomatic aortic stenosis (AS) heralds a poor prognostic outlook and significant co-morbidity, with valve replacement the only definitive cure. Transcatheter aortic valve implantation (TAVI) has developed as an alternative to the standard treatment of surgical aortic valve replacement (SAVR) in high-risk or inoperable AS patients. The clinical and cost effectiveness of TAVI compared to SAVR requires further investigation. Methods: A prospective study of sixty seven TAVI and twenty seven SAVR patients, recruited from September 2009 to September 2011. Baseline assessments in

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Libros sobre el tema "Aortic valve stenosis (AVS)"

Huber, Christoph. Transcatheter valve therapies. Informa Healthcare USA, 2009.

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M, Bashore Thomas, and Davidson Charles J, eds. Percutaneous balloon valvuloplasty and related techniques. Williams & Wilkins, 1991.

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Baumgartner, Helmut, Stefan Orwat, Elif Sade, and Javier Bermejo. Heart valve disease (aortic valve disease): aortic stenosis. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198726012.003.0032.

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Echocardiography has become the gold standard for the assessment of patients with aortic stenosis (AS). It allows morphological assessment of the aortic valve and provides information on the aetiology of the disease. The quantification of AS includes primarily the measurement of transaortic jet velocities and gradients as well as the calculation of the valve area, thus combining flow-dependent and relatively flow-independent variables. Awareness of potential pitfalls is fundamental when assessing these variables. Haemodynamic consequences of AS on left ventricular (LV) size, wall thickness, an

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Rosenhek, Raphael, Robert Feneck, and Fabio Guarracino. Aortic valve disease. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199599639.003.0014.

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Echocardiography is the gold standard for the assessment of patients with aortic valve (AoV) disease. It allows a detailed morphological assessment of the AoV and thereby makes determination of the aetiology possible. In general, the quantification of aortic stenosis is based on the measurement of transaortic jet velocities and the calculation of AoV area, thus combining a flow-dependent and a flow-independent variable. In the setting of low-flow low-gradient AS, dobutamine echocardiography is of particular diagnostic and prognostic importance. The quantification of aortic regurgitation is bas

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Thorne, Sara, and Sarah Bowater. Valve and outflow tract lesions. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780198759959.003.0008.

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This chapter discusses valve and outflow tract lesions. It considers left ventricular outflow tract obstruction (LVOTO), including subvalvar aortic stenosis (AS), bicuspid aortic valve, and supravalvar AS. Also discussed are left ventricular inflow lesions, including congenital mitral valve abnormalities, cor triatriatum, and Shone syndrome. It also covers right ventricular outflow tract obstruction (RVOTO), including pulmonary valvar stenosis, supravalvar pulmonary stenosis, pulmonary artery stenosis, pulmonary atresia with intact septum, and double-chambered right ventricle. Ebstein anomaly

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Thorne, Sara, and Paul Clift, eds. Left ventricular outflow tract obstruction (LVOTO). Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199228188.003.0008.

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Introduction 68Subvalvar aortic stenosis (AS) 70Bicuspid aortic valve 72Supravalvar AS 74LVOTO may occur at different levels: • Subvalvular.• Valvular—including bicuspid aortic valve.• Supravalvular.• Coarctation— see p.118.Effects of LVOTO, irrespective of site of lesion, are: • ↑ afterload on LV....

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Lancellotti, Patrizio, Julien Magne, Kim O’Connor, and Luc A. Pierard. Mitral valve disease. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199599639.003.0015.

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Native mitral valve disease is the second valvular heart disease after aortic valve disease. For the last few decades, two-dimensional Doppler echocardiography was the cornerstone technique for evaluating patients with mitral valve disease. Besides aetiological information, echocardiography allows the description of valve anatomy, the assessment of disease severity, and the description of the associated lesions.This chapter will address the echocardiographic evaluation of mitral regurgitation (MR) and mitral stenosis (MS).In MR, the following findings should be assessed: 1. Aetiology. 2. Type

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Lancellotti, Patrizio, and Bernard Cosyns. Adult Congenital Heart Disease. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198713623.003.0013.

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Echocardiography has a fundamental role in patients with adult congenital heart disease. This chapter identifies the role of echocardiography in atrial septal defects, ventricular septal defects, atrioventricular septal defects, patent ductus arteriosus, and persistent left superior vena cava. For each condition, the role of transthoracic and transoesophagael echocardiogram are shown alongside examples of main types and features and haemodynamic effect. Echocardiographic findings of LV outflow tract obstruction, supravalvular aortic stenosis, aortic stenosis, and aortic coarction are covered,

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Katritsis, Demosthenes G., Bernard J. Gersh, and A. John Camm. Aortic stenosis. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199685288.003.0325_update_004.

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Diagnosis and risk stratification of patients with aortic stenosis are presented. Indications for surgical therapy and percutaneous valve implantation based on the recommendations of ACC/AHA and ESC are summarized and tabulated.

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Davey, Patrick, and Jim Newton. Aortic stenosis. Edited by Patrick Davey and David Sprigings. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199568741.003.0093.

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Aortic stenosis is characterized by thickening and reduced mobility of the aortic valve leaflets and results in restriction to the blood flow from the left ventricle to the aorta, and secondary left ventricular hypertrophy.

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Capítulos de libros sobre el tema "Aortic valve stenosis (AVS)"

Clavel, Marie-Annick, Nancy Côté, and Philippe Pibarot. "Aortic Stenosis." In Heart Valve Disease. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-23104-0_3.

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Hanzel, George S. "Transcatheter Aortic Valve Replacement." In Aortic Stenosis. Springer London, 2015. http://dx.doi.org/10.1007/978-1-4471-5242-2_15.

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Sridharan, Shankar, Gemma Price, Oliver Tann, Marina Hughes, Vivek Muthurangu, and Andrew M. Taylor. "Aortic Valve Stenosis." In Cardiovascular MRI in Congenital Heart Disease. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-69837-1_17.

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Kleman, Mandi E. "Aortic Valve Stenosis." In Veterinary Image-Guided Interventions. John Wiley & Sons, Ltd, 2015. http://dx.doi.org/10.1002/9781118910924.ch60.

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Schneider, Jordan, and Ronald A. Bronicki. "Aortic Valve Stenosis." In Simulation in Cardiovascular Critical Care Medicine. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-63557-1_14.

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Isner, Jeffrey M. "Aortic Valve Stenosis." In Valvular Heart Disease. CRC Press, 2024. https://doi.org/10.1201/9781003573876-10.

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Shannon, Francis L., Marc P. Sakwa, and Robert L. Johnson. "Surgical Management of Aortic Valve Stenosis." In Aortic Stenosis. Springer London, 2015. http://dx.doi.org/10.1007/978-1-4471-5242-2_12.

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Poon, Karl K. C. "Imaging for Transcatheter Aortic Valve Replacement." In Aortic Stenosis. Springer London, 2015. http://dx.doi.org/10.1007/978-1-4471-5242-2_14.

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Kerner, Nathan. "Echocardiographic Evaluation of Aortic Valve Stenosis." In Aortic Stenosis. Springer London, 2015. http://dx.doi.org/10.1007/978-1-4471-5242-2_6.

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Tarantini, Giuseppe, Tommaso Fabris, Chiara Fraccaro, and Gaetano Thiene. "Aortic Stenosis and Aortic Incompetence." In Bicuspid Aortic Valve Syndrome. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-85589-4_7.

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Actas de conferencias sobre el tema "Aortic valve stenosis (AVS)"

Garg, Harsh, Anubhav Gupta, Radhika Khatri, Sanober Sarfaraz Ahmed, and Neeru Sood. "Comparative Analysis of Various Machine Learning Approaches to Predict Postoperative Mortality in Patients Undergoing Aortic Valve Replacement for Severe Aortic Stenosis." In 2024 International Conference on Modeling, Simulation & Intelligent Computing (MoSICom). IEEE, 2024. https://doi.org/10.1109/mosicom63082.2024.10881833.

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Gogarty, Michael B., and Lakshmi P. Dasi. "In Vitro Beating Heart Simulator for Minimally Invasive Heart Valve Therapy Research." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80743.

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Heart disease is the number one cause of death today with aortic valve stenosis (AVS) being a major contributor to the mortality rate1. Because of the invasive nature of Aortic Valve Resection (AVR), the typical treatment for AVS, between 30–60% of patients affected by severe aortic stenosis cannot be treated surgically, usually due to age and advanced comorbidities. Qualifying individuals must undergo extensive rehabilitation and of those who qualify 4.3% to 25% do not survive the first year following the procedure3,4.

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Graham, Joel D., M. Keith Sharp, Steven C. Koenig, Guruprasad Giridharan, Michael A. Sobieski, and Mark S. Slaughter. "Treatment of Severe Aortic Stenosis: Development and Feasibility Testing of an Aortic Valve Bypass Apical Cannula." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53257.

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Treatment of aortic stenosis through surgical replacement has been one of the most successful advances in cardiovascular medicine (1), though use in certain patient populations, specifically in the elderly, has been associated with increased mortality rates (2). A growing alternative surgery is Aortic Valve Bypass (AVB). This therapy offers decreased surgical risk because it does not require cardiopulmonary bypass, aortic crossclamping, aortotomy, or cardioplegic cardiac arrest (3). A one-way conduit between the apex of the left ventricle and the descending aorta increases flow by reducing aft

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Agarwal, Ramesh K., and Guangyu Bao. "Numerical Study of Flow Through Models of Aortic Valve Stenoses and Assessment of Gorlin Equation." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-26132.

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Gorlin equation has been applied in clinical practice for evaluating the aortic valve area (AVA) of vascular and aortic valve stenosis for past sixty years [1]. It was derived using the Bernoulli equation across the stenosis with the assumption that the velocity of the fluid behind the stenosis is much greater than the velocity upstream of the stenosis. Because of this assumption, the calculated stenosed area may have large error if the flow rate across the valve is low or the stenosis is mild [2]. In a recent paper, Okpara and Agarwal [3] proposed a new equation (Agarwal – Okpara equation) wh

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Zhang, Ruihang, and Yan Zhang. "Pulsatile Flow Characteristics in a Stenotic Aortic Valve Model: An In Vitro Experimental Study." In ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/ajkfluids2019-4978.

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Abstract Aortic stenosis (AS) is one of the most common valvular heart diseases around the globe. The accurate assessment of AS severity is important and strongly associated with accurate interpretation of the hemodynamic parameters across the stenotic valve. In this study, we conducted in vitro fluid dynamic experiments to investigate the pulsatile flow characteristics of a stenotic aortic valve as a function of heart rate. An in vitro cardiovascular flow simulator was used to generate pulsatile flow with a prescribed waveform (40% systolic period and 4L/min cardiac output) under varied heart

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Vincent, Alisha. "Unveiling the Potential: The Role of AI-Enhanced ECG in Cardiovascular Disease Detection." In 28th Annual Rowan-Virtua Research Day. Rowan University Libraries, 2024. https://doi.org/10.31986/issn.2689-0690_rdw.stratford_research_day.109_2024.

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Background: The Electrocardiogram (ECG) is a widely utilized, non-invasive, cost-effective cardiac test. Its integration with Artificial Intelligence (AI) has empowered it to become a potent screening tool and a predictor for various cardiovascular diseases, especially in asymptomatic individuals. Objective: This review investigates the utility of AI-powered ECG in early detection of cardiac conditions, focusing on conditions such as low ejection fraction (LEF), atrial fibrillation (AF), aortic valve stenosis (AVS), and cardiac amyloidosis (CA). Methods: A literature review spanning 2018 to 20

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Fujita, B., K. Bozkurt, M. Saad, et al. "Surgical versus Transcatheter Aortic Valve Replacement for Treatment of Bicuspid Aortic Valve Stenosis." In 49th Annual Meeting of the German Society for Thoracic and Cardiovascular Surgery. Georg Thieme Verlag KG, 2020. http://dx.doi.org/10.1055/s-0040-1705303.

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Kato, Takayoshi, Tomohiro Tsunekawa, Yusuke Motoji, Tatsuomi Kinoshita, Yasuhide Okawa, and Shinji Tomita. "19 Aortic valve replacement for severe aortic stenosis with low ejection fraction." In 1st Asia Pacific Advanced Heart Failure Forum (APAHFF), 15th December 2017, Hong Kong. BMJ Publishing Group Ltd, British Cardiovascular Society and Asia Pacific Heart Association, 2018. http://dx.doi.org/10.1136/heartasia-2018-apahff.19.

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Bonello, Bea, Michelle Carr, Richard Issitt, et al. "86 Long-term outcome of critical aortic valve stenosis." In GOSH Conference 2019, Care of the Complex Child. BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health, 2019. http://dx.doi.org/10.1136/archdischild-2019-gosh.86.

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Tent, Michiel. "Durable benefits of TAVR versus surgical aortic valve replacement in aortic stenosis patients." In ACC 2023 Scientific Session, edited by Marc Bonaca. Medicom Medical Publishers, 2023. http://dx.doi.org/10.55788/08fb868c.

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Informes sobre el tema "Aortic valve stenosis (AVS)"

Shao, Ruochen, and Junli Li. Efficacy and Safety of Emergent Transcatheter Aortic Valve Implantation in Patients with Decompensated Aortic Stenosis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2021. http://dx.doi.org/10.37766/inplasy2021.4.0050.

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Song, Yumeng, Yutong Wang, Zuoxiang Wang, and Tingbo Jiang. Comparing clinical outcomes on oncology patients with severe aortic stenosis undergoing transcatheter aortic valve implantation： A systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.2.0009.

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Genereux, Philippe. Aortic valve replacement in asymptomatic severe aortic stenosis: A protocol for a systematic review and meta-analysis of observational studies and randomized trials. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2025. https://doi.org/10.37766/inplasy2025.3.0112.

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Genereux, Philippe, and Roxanna seyedin. Transcatheter or surgical aortic valve replacement versus clinical surveillance in asymptomatic severe aortic stenosis: A protocol for a systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2024. http://dx.doi.org/10.37766/inplasy2024.9.0002.

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Transcatheter aortic valve implantation may be an option for patients with aortic stenosis at lower surgical risk. National Institute for Health Research, 2019. http://dx.doi.org/10.3310/signal-000818.

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