The Yang procedure is a new aortic root enlargement technique used to enlarge the aortic annulus by multiple valve sizes. The procedure prevents patient prosthesis mismatch and establishes a viable platform for future valve-in-valve implantation. This study used the Yang procedure to investigate the hemodynamics in the aortic root and bioprosthetic valve regions after aortic root enlargement. Results indicate the velocity magnitude at the sinus regions of a patient who underwent the Yang procedure was slower, indicating risks of flow stasis and thrombosis. Simulation results denote computational models can be created for optimization of surgical procedures.
","abstract_html":"<p>The Yang procedure is a new aortic root enlargement technique used to enlarge the aortic annulus by multiple valve sizes. The procedure prevents patient prosthesis mismatch and establishes a viable platform for future valve-in-valve implantation. This study used the Yang procedure to investigate the hemodynamics in the aortic root and bioprosthetic valve regions after aortic root enlargement. Results indicate the velocity magnitude at the sinus regions of a patient who underwent the Yang procedure was slower, indicating risks of flow stasis and thrombosis. Simulation results denote computational models can be created for optimization of surgical procedures.</p>","abstract_has_math":false,"creators":["Ghimire, Astitwa"],"institution":null,"degree_name":"M.S.","degree_level":"Masters Thesis","degree_discipline":null,"degree_department":null,"school":null,"contributors":["Ali Azadani","Matt Gordon","Yan Qin"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2023,"date_issued":"2023-08-01T07:00:00Z","date_published":"2023-08-01T07:00:00Z","updated_at":"2026-07-24T02:01:39Z","subjects":["Aortic root enlargement","Valve-in-valve implantation","Yang procedure","Hemodynamics","Biomechanical Engineering","Biomedical Devices and Instrumentation","Biomedical Engineering and Bioengineering","Engineering","Mechanical Engineering","Other Biomedical Engineering and Bioengineering"],"languages":["English (eng)"],"rights":["Copyright is held by the author. User is responsible for all copyright compliance.
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"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Hemodynamic Assessment of Y-Incision Aortic Root Enlargement Using Computational Simulations"]}]}],"canonical_facts":{"dc:contributor":["Ali Azadani","Matt Gordon","Yan Qin"],"dc:creator":["Ghimire, Astitwa"],"dc:description.abstract":["The Yang procedure is a new aortic root enlargement technique used to enlarge the aortic annulus by multiple valve sizes. The procedure prevents patient prosthesis mismatch and establishes a viable platform for future valve-in-valve implantation. This study used the Yang procedure to investigate the hemodynamics in the aortic root and bioprosthetic valve regions after aortic root enlargement. Results indicate the velocity magnitude at the sinus regions of a patient who underwent the Yang procedure was slower, indicating risks of flow stasis and thrombosis. Simulation results denote computational models can be created for optimization of surgical procedures.
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"],"dc:subject":["Aortic root enlargement","Valve-in-valve implantation","Yang procedure","Hemodynamics","Biomechanical Engineering","Biomedical Devices and Instrumentation","Biomedical Engineering and Bioengineering","Engineering","Mechanical Engineering","Other Biomedical Engineering and Bioengineering"],"dc:title":["Hemodynamic Assessment of Y-Incision Aortic Root Enlargement Using Computational Simulations"],"thesis:degree_level":["Masters Thesis"],"thesis:degree_name":["M.S."]},"updated_at":"2026-07-24T02:01:39Z"}