Abstract
Inguinal lymphadenectomy used in the treatment of vulvar cancer often results in complications, such as lymphoedema or abnormal wound healing. Aim of this study was assessment of the diagnostic effectiveness of the sentinel lymph node biopsy (SLNB) procedure in patients treated due to vulvar cancer. Eighty-four patients diagnosed with squamous cell vulvar carcinoma (FIGO I-IV) underwent preoperative lymphoscintigraphy with technetium 99 to map sentinel lymph node. During surgery sentinel lymph nodes were identified and resected, followed by complete bilateral groin lymphadenectomy. Sentinel lymph nodes were mapped with lymphoscintigraphy and biopsied in 84.3% and 90.1% of patients, respectively. False negative predictive value (FNPV) was 9.1% and false negative rate (FNR) was recorded in 16.7% of cases. Patients in advanced stages (FIGO III and IV) had significantly lower rate of lymphatic mapping compared to those in stage I and II (OR = 0.148, p = 0.022). Detection of sentinel lymph node in lymphoscintigraphy for tumor grade 2 and 3 was nearly eight times lower than for grade 1 cancers, however without statistical significance (OR = 0.126, p = 0.058). The use of SLNB should be limited to vulvar cancer patients in early clinical stages.
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