Medial Inguino-Femoral Lymphadenectomy for Vulvar Cancer: An Approach to Decrease Lymphedema without Compromising...

Area of Science:

• Oncology
• Surgical Oncology
• Lymphedema Research

Background:

• Lower limb lymphedema is a common complication following inguinofemoral lymphadenectomy for vulvar cancer.
• The risk of lymphedema is associated with the number of lymph nodes removed.
• A hypothesis proposed that preserving lateral lymph nodes could mitigate this risk.

Purpose of the Study:

• To evaluate the safety and efficacy of a selective lymphadenectomy approach in vulvar cancer patients.
• To determine if medial infragenual lymphadenectomy alone is sufficient when medial lymph nodes are negative.
• To reduce the incidence of lower limb lymphedema without compromising oncological outcomes.

Main Methods:

• Patients with vulvar cancer, including those with medial extension, were included.
• Exclusion criteria involved tumors extending laterally, posteriorly, or anteriorly.
• Inguinal nodes were dissected and categorized into medial and lateral groups relative to the femoral artery.

Main Results:

• Data from 112 groins of 76 patients were analyzed.
• Positive lymph nodes were identified in 38.2% of cases, all with medial involvement.
• Only 6.6% of patients had positive lateral inguinal nodes, with a very low probability (0.00002) of a positive lateral node if medial nodes were negative.

Conclusions:

• Medial infragenual lymphadenectomy may be sufficient for vulvar cancer when medial lymph nodes are negative.
• This selective approach can significantly reduce the risk of lower limb lymphedema.
• The strategy appears to maintain oncological safety, potentially improving patient survival and quality of life.