Overview

Standards of compression vary internationally. For simplicity, classes of compression are defined in this guideline as shown in Definition of compression classes used in this guideline.

Figure 1. Definition of compression classes used in this guideline

class I provides less than 20 mmHg of compression at the ankle
class II provides 20 to 29 mmHg of compression at the ankle
class III provides 30 to 40 mmHg of compression at the ankle

Examples of compression therapy include compression bandages, compression stockings, wrap systems and biomechanical devices. In general, a pressure of 30 to 40 mmHg at the ankle, reducing by 50% below the knee is considered optimal for treating venous disease. Therefore, for treatment of a venous leg ulcer, class III compression is recommended, though patient comorbidities (particularly peripheral arterial disease, cognition) and tolerability of compression must be considered; see Venous leg ulcers and Precautions for use of compression therapy.

For use of compression for other indications, seek specialist advice.

The amount of compression provided depends on the design of the compression system, the shape of the limb and the skill and technique of the person applying the compression. An overview of compression systems in provided in #lwg2-c15-s5-1__tlwg2-c15-tbl2. Graduated compression therapy is summarised in Overview of leg ulcer assessment and compression therapy.

Figure 2. Overview of leg ulcer assessment and compression therapy.
[NB1]