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Current management of patients with cutaneous melanoma with a positive sentinel lymph node
Sergio D Quildrian1,2, Walter S Nardi1,2, Victoria Scasso3
1Departamento de Cirugía General, Hospital Británico de Buenos Aires, Argentina.
Introduction:
Immediate completion lymph node dissection (CLND) performed in patients with a positive sentinel lymph node biopsy (SLNB) cutaneous melanoma is not associated with improved melanoma specific survival versus active surveillance (AS) using nodal ultrasound. Clinical practice experience and outcomes of AS and adjuvant therapy is now starting to be published in literature.
Methods:
Retrospective analysis of patients with a positive-SLNB between June/2017-February/2022. Impact of management on any-site recurrence free survival (RFS), isolated nodal recurrence (INR), distant metastasis-free survival (DMFS) and melanoma-specific survival (MSS) was evaluated.
Results:
From 126 SLNB, 31 (24.6%) were positive: 24 received AS and 7 CLND. Twenty-one (68%) received adjuvant therapy (AS, 67% and CLND, 71%). With a median follow-up of 18 months, 10 patients developed recurrent disease with an estimated 2-yr RFS of 73% (CI95%, 0.55-0.86) (30% in AS group vs. 43% in dissection group; P = 0.65). Four died of melanoma with an estimated 2-yr MSS of 82% (CI 95%, 0.63-0.92) and no differences between AS and CLND groups (P = 0.21). Estimated 2-yr DMFS of the whole cohort was 76% (CI 95%, 0.57-0.88) with no differences between groups (P = 0.33).
Conclusion:
Active surveillance strategy has been adopted for most positive-SLNB cutaneous melanoma patients. Adjuvant therapy without immediate CLND was delivered in nearly 70% of patients. Our results align with outcomes of randomized control trials and previous real-world data.
