Minimizing Early-Onset Lymphedema Following Groin Dissection in Metastatic Melanoma

Area of Science:

• Oncology
• Surgical Complications
• Lymphedema Management

Background:

• Lymphedema is a frequent and debilitating complication following groin dissection for metastatic melanoma.
• Effective prophylactic strategies are needed to mitigate this post-surgical burden.

Purpose of the Study:

• To evaluate the efficacy of a 6-month program of compression garments combined with simple lymphatic drainage (CG-SLD) in reducing lymphedema incidence post-groin dissection.
• To compare CG-SLD against standard care (SC) in preventing lymphedema development and severity.

Main Methods:

• A randomized controlled trial comparing CG-SLD to SC for 6 months post-surgery.
• Lymphedema assessment using interlimb volume difference and bioimpedance spectroscopy at baseline and every 3 months for 24 months.
• Primary endpoint: lymphedema incidence at 24 months; secondary outcomes: time to onset, severity, and quality of life (QoL).

Main Results:

• The study was underpowered with 38 participants randomized (SC: 20, CG-SLD: 18).
• Lymphedema incidence at 24 months was numerically higher in SC (55%) versus CG-SLD (38.9%), but this difference was not statistically significant.
• Early lymphedema severity favored CG-SLD at 3 months, but no persistent differences were observed. No significant QoL differences were found.

Conclusions:

• The CG-SLD intervention did not significantly reduce lymphedema incidence compared to SC at 24 months.
• Observed early benefits in lymphedema reduction were not maintained after the 6-month intervention period.
• Larger trials are necessary to confirm if early prophylactic strategies offer lasting benefits due to the study's underpowered nature.