Meta-analysis of completion lymph node dissection in sentinel lymph node-positive melanoma

Area of Science:

• Oncology
• Surgical Oncology
• Dermatology

Background:

• The necessity of completion lymph node dissection (CLND) for melanoma patients with sentinel lymph node (SLN)-positive status remains a subject of ongoing clinical debate.
• This systematic review and meta-analysis addresses the uncertainty surrounding the benefits of CLND versus observation in this patient cohort.

Purpose of the Study:

• To evaluate the impact of CLND on survival and recurrence rates in patients diagnosed with SLN-positive melanoma.
• To compare the outcomes of CLND against observation in the management of SLN-positive melanoma.

Main Methods:

• A systematic literature search was conducted across MEDLINE and Embase for relevant cohort studies and randomized controlled trials (RCTs) published between January 2000 and June 2017.
• Data from 15 studies (13 cohort, 2 RCTs) were analyzed, with 13 studies included in the quantitative meta-analysis to assess survival and recurrence rates using pooled relative risk or hazard ratios.

Main Results:

• The meta-analysis revealed no significant difference in survival rates between patients who underwent CLND and those managed with observation (Risk Ratio for death: 0.85; 95% CI: 0.71 to 1.02).
• Similarly, the recurrence rates were comparable between the two groups (Risk Ratio: 0.91; 95% CI: 0.79 to 1.05).

Conclusions:

• For patients with SLN-positive melanoma, undergoing CLND does not confer a statistically significant advantage in terms of improved survival or reduced recurrence rates when compared to observation.
• These findings suggest that observation may be a suitable management strategy for select patients with SLN-positive melanoma, potentially avoiding the morbidity associated with CLND.