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KMID : 1137020230340060079
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Journal of Gynecologic Oncology
2023 Volume.34 No. 6 p.79 ~ p.79
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Comparison of progression-free survival outcome of sentinel node biopsy without ultrastaging versus lymphadenectomy in endometrial cancer: a propensity-matched analysis
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Lee Da-Hye
Siriruk Sarawaneeyaruk
Cho Sang-Hyun
Yoon Hye-Soo
Kim Young-Tae
Kim Seung-Woo
Kim Sang-Wun
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Abstract
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Objective : We aimed to investigate the oncologic outcomes of patients with endometrial cancer who underwent sentinel lymph node (SLN) biopsy without ultrastaging compared with that of those who underwent lymphadenectomy (LND).
Methods : Patients with endometrial cancer who underwent staging with SLN biopsy or LND during 2006 ? 2021 were analyzed using propensity score matching (PSM). SLN metastasis was examined using hematoxylin and eosin staining, without ultrastaging. Progression-free survival (PFS) was compared between the two groups before and after PSM using age, histology, and stage as covariates. Clinical variables such as recurrence patterns and lymphatic complications, were assessed.
Results : After excluding 213 patients who underwent validation LND with SLN biopsy, 902 were identified. The demographics of the remaining patients differed according to histology, myometrial invasion depth, and stage. Lymph node metastasis was less frequent in the SLN group than in the LND group (9.4% vs. 3.8%, p=0.004). The recurrence rates within 2 years were lower in the SLN group. The SLN group exhibited significantly superior 2-year and overall PFS than the LND group. Among patients with uterus-confined disease, overall PFS was favorable for SLN biopsy. After matching, differences in PFS were no longer observed, although the lymphocele and lymphedema rates were significantly lower in the SLN group.
Conclusion : In patients with endometrial cancer, SLN biopsy without ultrastaging did not compromise survival outcomes and was associated with significantly reduced lymphatic complication rates compared with LND. Therefore, SLN biopsy can be recommended for patients with endometrial cancer without definitive preoperative evidence of distant metastasis.
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KEYWORD
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Endometrial Neoplasms, Sentinel Lymph Node Biopsy, Lymphadenectomy, Survival, Lymphedema/Complications, Lymphocele/Complications
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