Vu V, May-Newman K. Bileaflet Prosthesis Design and Orientation Affect Fluid Shear, Residence Time, and Thrombus Formation.
J Cardiothorac Vasc Anesth 2019;
33:2870-2872. [PMID:
31060942 DOI:
10.1053/j.jvca.2019.03.018]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 03/08/2019] [Accepted: 03/09/2019] [Indexed: 11/11/2022]
Abstract
The orientation and design of bileaflet valve prosthesis in the mitral position affects the intraventricular blood flow and exposure to shear. The combination of the anatomic orientation and a small gap size of the St. Jude Medical valve produces an increase in shear exposure and blood residence time, which both predispose the formation of thrombus in the high shear gaps of the valve hinges.
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