Objective　To　elucidate　the　influence　of　two　procedures　aortic　root　remodeling　using　a　straight　tubular　artificial　vessel　while　preserving　the　aortic　valve　and　the　Florida　sleeve　procedure　on　the　biomechanics　of　the　aortic　root.　Methods　Five　finite　element　models　of　the　aortic　root　were　reconstructed　using　computed　tomography　angiography　images,　including　two　cases　of　aortic　root　remodeling　(A1　and　A2),　two　cases　of　the　Florida　sleeve　procedure　(B1　and　B2),　and　one　control　group　without　aortic　root　pathology　(C).　Numerical　simulations　were　performed　to　obtain　the　blood　flow　and　pressure　distribution　result　to　assess　the　differences　in　the　hemodynamics　of　the　aortic　root.　Results　There　were　no　significant　differences　in　the　peak　systolic　velocity　between　the　two　procedures　and　the　control.　However,　the　flow　velocity　after　aortic　root　remodeling　was　smoother,　similar　to　the　model　of　the　control　group,　with　a　more　stable　average　aortic　pressure　and　wall　shear　stress.　In　the　Florida　sleeve　procedure,　high-speed　blood　flow　affected　the　vessel　wall,　leading　to　various　degrees　of　wall　shear　stress　and　pressure　concentrations　along　the　aortic　wall.　Conclusions　After　aortic　root　replacement　with　valve　preservation,　blood　flow　patterns　in　the　reconstructed　aortic　root　depended　on　postoperative　changes　in　sinus　geometry.　Both　surgical　procedures　showed　favorable　blood　flow　patterns;　however,　the　flow　pattern　after　aortic　root　remodeling　was　more　stable　than　that　after　the　Florida　sleeve　procedure.　©　2024　Editorial　Department　of　Journal　of　Shanghai　Second　Medical　University.　All　rights　reserved.