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Contribution of Hemodynamic Shear Stress Magnitude and Frequency Abnormalities to Calcific Aortic Valve Disease Pathogenesis

[+] Author Affiliations
Ling Sun, Philippe Sucosky

University of Notre Dame, Notre Dame, IN

Paper No. SBC2013-14377, pp. V01BT30A004; 2 pages
  • ASME 2013 Summer Bioengineering Conference
  • Volume 1B: Extremity; Fluid Mechanics; Gait; Growth, Remodeling, and Repair; Heart Valves; Injury Biomechanics; Mechanotransduction and Sub-Cellular Biophysics; MultiScale Biotransport; Muscle, Tendon and Ligament; Musculoskeletal Devices; Multiscale Mechanics; Thermal Medicine; Ocular Biomechanics; Pediatric Hemodynamics; Pericellular Phenomena; Tissue Mechanics; Biotransport Design and Devices; Spine; Stent Device Hemodynamics; Vascular Solid Mechanics; Student Paper and Design Competitions
  • Sunriver, Oregon, USA, June 26–29, 2013
  • Conference Sponsors: Bioengineering Division
  • ISBN: 978-0-7918-5561-4
  • Copyright © 2013 by ASME


Calcific aortic valve disease (CAVD) is an active process presumably triggered by interplays between atherogenic risk factors, molecular signaling networks and hemodynamic cues. While our earlier work demonstrated that progressive alterations in fluid shear stress (FSS) on the fibrosa could trigger valvular inflammation [1], the mechanisms of CAVD pathogenesis secondary to side-specific FSS abnormalities are poorly understood. Supported by our previous studies, we hypothesize that valve leaflets are sensitive to both WSS magnitude and pulsatility and that abnormalities in either promote CAVD development. This study aims at elucidating ex vivo the contribution of isolated and combined alterations in FSS magnitude and pulsatility to valvular calcification.

Copyright © 2013 by ASME



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