The value of dynamic venous pressure measurements

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Abstract
This article describes the technique of measuring ambulatory venous pressures and their value in the diagnosis and assessment of the severity of venous hypertension as well as their contribution toward our understanding of venous hemodynamics and the pathophysiology of venous disorders. It demonstrates that ambulatory venous pressures are not only of diagnostic significance, but also of prognostic significance. Competent popliteal valves will protect the leg from venous hypertension despite proximal (iliofemoral) occlusion. Although the measurement of ambulatory venous pressures is the “gold standard,” it is invasive and cannot be repeated frequently nor can it be used as a screening test. It has been employed in the validation of a number of noninvasive tests now used for the routine screening of patients. Nevertheless, ambulatory venous pressure measurements are essential if the beneficial hemodynamic effect of surgical reconstructive procedures is to be convincingly demonstrated.