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A Journal on Phlebology
THE POINT ON ...
Acta Phlebologica 2008 December;9(3):109-13
MEV analysis and reservoir effect
Diagnostic Center “Aquarius”, Naples, Italy
Aim. Recently, an intrasegmentary saphenous reflux was claimed to be due to the aspirating power of the capacitance of an incompetent small accessory vein (the reservoir). The present note outlines a more elementary explanation. A simplified model is digitally rendered, to show an Input-Output open path ShIIB with an intrasegmentary great saphenous vein (GSV) reflux.
Methods. Cutting the reservoir provides a flow inversion in the GSV trunk with reflux suppression.
Results. The analysis of the circuit shows how this result can be achieved even studying only the topographical properties of the venous circuit, without making any hypothesis on the vessel diameters or compliance.
Conclusion. This is an application of the Ockham’s Razor (XIV century) and of the MEV analysis, based on the modern graph theory. The results of this simulation strongly support the hypothesis that the reservoir is not involved in the origin of the reflux.