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A model of the factors affecting interstitial volume in oedema. Part II: Their effects at various abnormal
1Henry Thomas Laboratory, University of Adelaide, Australia.
Abstract:
A mathematical model has been used to investigate the alterations, in amount and importance, of the Factors controlling interstitial fluid volume in a number of steady-state oedemas. Steady-states were used because it is much easier to evaluate the effect of a specific Factor on oedema if all the others are constant. They are best compared if expressed in the same units: ml/min/100 g of tissue. The effects of lymphatic drainage on trauma are very important, as is the effect of tissue proteolysis on lymphoedema. Tissue proteolysis has minimal effects on the normal state and trauma; yet modelling its increase with benzo-pyrones markedly reduces oedema in both trauma and lymphoedema. Excess fibrosis greatly reduces lymphoedema. The effects of the individual Factors vary considerably between the different steady-states.