Prospective multicentre observational study of lymphedema therapy: POLIT study

Area of Science:

• Lymphedema research
• Clinical trial methodology
• Patient outcomes

Background:

• Lymphedema management relies on Decongestive Lymphedema Therapy (DLT), comprising intensive and maintenance phases.
• Understanding volume changes throughout DLT is crucial for optimizing treatment efficacy.

Purpose of the Study:

• To evaluate lymphedema volume variation during the intensive phase of DLT.
• To assess volume changes 6 months into the maintenance phase.
• To identify factors influencing treatment response and safety.

Main Methods:

• Prospective, multicenter observational study involving patients with unilateral lymphedema.
• Primary endpoint: lymphedema volume change at the end of intensive treatment and 6 months later.
• Secondary endpoints: limb function, heaviness, and treatment safety.

Main Results:

• A median excess lymphedema volume reduction of 31.0% was observed post-intensive phase.
• A median increase of 16.5% in excess volume occurred during the 6-month maintenance phase.
• Heaviness limiting limb function decreased after the intensive phase but increased during maintenance. Skin redness and compression marks were common adverse events.

Conclusions:

• The intensive phase of DLT effectively reduces lymphedema volume and improves limb function.
• Benefits are partially reversed within 6 months of the maintenance phase.
• Optimal long-term lymphedema management strategies require further consideration.