Effects of Dobutamine on Aortic Valve Indexes in Asymptomatic Patients With Bileaflet Mechanical Prostheses in the Aortic Valve Position
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2003, Journal of Thoracic and Cardiovascular SurgeryComparison of valve resistance with effective orifice area regarding flow dependence
2001, American Journal of CardiologyCitation Excerpt :Moreover, when individual data are made available in these studies, it is obvious that the response of EOA and resistance to flow is variable, and likely depends on the degree of flexibility of the stenosis. In contrast, studies in mechanical prostheses14,15 or in fixed stenosis27 all conclude to the opposite, i.e., that resistance is more flow dependent than EOA. However, these apparent discrepancies are easily reconciled if one considers the 3 variable relations given by equation (3).
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