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December 1, 1997Cardiovascular Surgery

Pulse duplicator hydrodynamics of four different bileaflet valves in the mitral position

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Population

In vitro computerized artificial left heart system testing four 29-mm bileaflet heart valves

Comparison

Hydrodynamic testing in steady state and… vs Comparison between the four valve types

Design

Preclinical

Authors

PVP. VerdonckIMEC

Discussion

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Implication

In vitro hemodynamic differences among bileaflet valves at high flows are hypothesis-generating; leaves open clinical relevance.

Structured PICO

P
Population
In vitro computerized artificial left heart system testing four 29-mm bileaflet heart valves (St. Jude Medical, CarboMedics, ATS Medical, Medtronic Parallel)
I
Intervention
Hydrodynamic testing in steady state and pulsatile conditions at rest and exercise (cardiac output 4-30 l/min)
C
Comparator
Comparison between the four valve types
O
Outcome
Hydrodynamic performance including pressure drops, effective orifice area, and regurgitant volumesurrogate

In an in vitro model, four different 29-mm bileaflet mechanical valves demonstrated notable differences in pressure drops and effective orifice areas under high peak flow conditions.

Cite This Study

P. Verdonck (1997) studied this question.

synapsesocial.com/papers/6a8ad693e6afc07dcbf446e7https://doi.org/10.1016/s0967-2109(97)00078-1
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Also Consider

Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1In Vitro Testing of Artificial Heart Valves: Comparison Between Newtonian and Non‐Newtonian Fluids1996 · 46 citations
  2. 2Clinical experience with the first 100 ATS heart valve implants1996 · 22 citations
  3. 3Experimental evaluation of different chordal preservation methods during mitral valve replacement1994 · 91 citations