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  • Title: Prospective study of sentinel lymph node biopsy without further pelvic lymphadenectomy in patients with sentinel lymph node-negative cervical cancer.
    Author: Niikura H, Okamoto S, Otsuki T, Yoshinaga K, Utsunomiya H, Nagase S, Takano T, Ito K, Watanabe M, Yaegashi N.
    Journal: Int J Gynecol Cancer; 2012 Sep; 22(7):1244-50. PubMed ID: 22864335.
    Abstract:
    OBJECTIVE: The aim of the present study was to evaluate the incidence of lymphedema and cancer recurrence rate in patients with cervical cancer who undergo sentinel lymph node (SLN) biopsy alone in the absence of SLN metastases. PATIENTS AND METHODS: The study included 35 consecutive patients with cervical cancer scheduled for radical hysterectomy at Tohoku University Hospital between May 2006 and July 2009. All patients had International Federation of Gynecology and Obstetrics stages IA1 to IIA1 disease. Patients in whom SLNs were detected unilaterally or not detected and/or whose lymph nodes were diagnosed intraoperatively as positive metastasis underwent systemic pelvic lymphadenectomy. Patients who were found negative for SLN metastasis did not undergo further pelvic lymphadenectomy. RESULTS: The mean number of detected SLNs was 4.1 (range, 1-11). True lymph node metastasis could be detected in 11 (31%) of the 35 cases. Intraoperative frozen section identified correctly in 8 of 11 metastatic patients. Twenty-three patients underwent SLN biopsy alone without systematic pelvic lymphadenectomy. None of the 23 patients diagnosed with negative SLNs have experienced a lymph node recurrence in the pelvic cavity. New symptomatic lower extremity lymphedema was identified in 2 (8.7%) of the 23 patients who underwent SLN biopsy alone and in 5 (42%) of 12 patients who underwent systematic lymphadenectomy. CONCLUSION: Radical hysterectomy with SLN biopsy alone seems to be a safe and effective strategy for detection of lymph node metastasis and for reducing the number of patients with lower extremity lymphedema, but a more convenient and sensitive procedure for intraoperative diagnosis needs to be established.
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