[Automatic recording of venous hysteresis. Results in the normal subject and in varicose patients].

The measurement of the venous distensibility by straingauge plethysmography during a semi-continuous variation (3 mm Hg every 20 seconds) of the cuff pressure during its inflation from 0 to 100 mm Hg and its deflation allow to record the venous hysteresis and to determine accurately the venous pressure. The standardized and automatic (Periflow J.S.I.) new method is highly discriminative between controls and varicose patients.