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- W2006183898 abstract "Function assessment of mechanical heart valve (MHV) dysfunction relies on pressure gradient and Effective Orifice Area (EOA) through echographic measurements. On the one hand, Doppler pressure measurements are based on the simplified Bernoulli equation. However, comparisons of Doppler and catheter pressure measurements have been largely discussed and have led Food and Drug Administration (FDA) to recommend the verification of Bernoulli’s equation before any valvular prosthesis test. Moreover, pressure recovery phenomenon was described in case of MHV in echographic recommendation [Zogbhi, 2009] and is particularly significant in case of valve dysfunction. On the other hand, EOA calculations still remain unsatisfying as MHV have a Geometrical Orifice Area (GOA) divided into three orifices. This experimental study focuses on validation of Doppler measurements, velocity profiles through mitral prostheses and consequences of hemodynamic conditions and design of MHV on dysfunction assessment." @default.
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- W2006183898 date "2012-07-01" @default.
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- W2006183898 title "IMPACT OF DESIGN AND HEMODYNAMIC CONDITIONS ON MECHANICAL HEART VALVE DYSFUNCTION ASSESSMENT" @default.
- W2006183898 doi "https://doi.org/10.1016/s0021-9290(12)70139-2" @default.
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