The principle of veno-lymphatic compression therapy

Compression leads to the restoration of normal venous flow from distal regions (extremities of the limbs) to proximal regions (roots of the limbs).
Compression therapy also aims to optimise the action of the venous muscle pump in order to restore the normal flow and direction of venous blood on exertion (from the superficial to the deep venous network and from distal to proximal tissues).

The principle of compression is based on application of extra-vascular pressure equal to the excess venous pressure in order to restore normal transmural pressure.
Therefore, the greater the increased intravenous pressure – and hence the more severe the disease – the higher the level needs to be applied with compression therapy.

In addition, compression must comply with the falling gradient of haemostatic pressure that exists naturally from the foot to the thigh.