ArticleArquivos brasileiros de cardiologia2020
Prediction of Stress Map in Ascending Aorta - Optimization of the Coaxial Position in Transcatheter Aortic Valve Replacement.
Article in Arquivos brasileiros de cardiologia, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Effect of Ascending Aortic Curvature on Flow in the Sinus and Neo-sinus Following TAVR: A Patient-Specific Study.Annals of biomedical engineering · 2024Article
- Computational Fluid Dynamics to Assess the Future Risk of Ascending Aortic Aneurysms.Arquivos brasileiros de cardiologia · 2022Observational
- Computational Analysis of Fluid Dynamics in the Transcatheter Aortic Valve Replacement.Arquivos brasileiros de cardiologia · 2020Article
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6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroudTranscatheter aortic valve replacement (TAVR) can reduce mortality among patients with aortic stenosis. Knowledge of pressure distribution and shear stress at the aortic wall may help identify critical regions, where aortic remodeling process may occur. Here a numerical simulation study of the influence of positioning of the prosthetic valve orifice on the flow field is presented.
objectiveThe present analysis provides a perspective of great variance on flow behavior due only to angle changes.
methodsA 3D model was generated from computed tomography angiography of a patient who had undergone a TAVR. Different mass flow rates were imposed at the inlet valve.
resultsSmall variations of the tilt angle could modify the nature of the flow, displacing the position of the vortices, and altering the prerssure distribution and the location of high wall shear stress.
conclusionThese hemodynamic features may be relevant in the aortic remodeling process and distribution of the stress mapping and could help, in the near future, the optimization of the percutaneous prosthesis implantation. (Arq Bras Cardiol. 2020; [online].ahead print, PP.0-0).
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