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Prophylactic node dissection for malignant melanoma

S T Norvell, J J McCleave, A J Bodurtha

    Canadian Journal of Surgery. Journal Canadien De Chirurgie
    |September 1, 1977
    PubMed
    Summary
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    Prophylactic lymph node dissection significantly improves survival rates for patients with malignant melanoma. This surgical procedure offers a substantial benefit, increasing the chances of long-term survival for melanoma patients.

    Area of Science:

    • Oncology
    • Surgical Oncology
    • Dermatology

    Background:

    • Malignant melanoma is a significant health concern.
    • Early-stage melanoma requires effective treatment strategies.
    • The role of prophylactic lymph node dissection in melanoma management is debated.

    Purpose of the Study:

    • To evaluate the impact of prophylactic lymph node dissection on survival rates in patients with clinical stage I malignant melanoma.
    • To determine if prophylactic node dissection offers a survival advantage over observation alone.

    Main Methods:

    • A cohort study involving 147 patients with non-superficial, cutaneous malignant melanoma (clinical stage I).
    • Patients were divided into two groups: 73 underwent prophylactic node dissection, and 74 did not.

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  • Survival rates were analyzed using the actuarial method, with adjustments for age and sex.

    • Main Results:

    • Five-year crude survival rates were 62% (dissection) vs. 29% (no dissection).
    • Adjusted five-year survival rates were 70% (dissection) vs. 33% (no dissection).
    • Significant survival differences (P < 0.001) were observed and persisted at 10 years, independent of other clinical factors.

    Conclusions:

    • Prophylactic lymph node dissection significantly increases survival in patients with early-stage malignant melanoma.
    • The survival benefit is substantial and not attributable to confounding patient or tumor characteristics.
    • This study supports the value of prophylactic node dissection in the management of malignant melanoma.