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Oncology ; 95(2): 100-108, 2018.
Article in English | MEDLINE | ID: mdl-29791913

ABSTRACT

OBJECTIVE: Uterine carcinosarcoma is a rare, aggressive subtype of endometrial cancer. Treatment consists of hysterectomy, bilateral salpingo-oophorectomy, and lymphadenectomy (LND). The survival benefit of LND in relation to adjuvant radio- and/or chemotherapy is unclear. We evaluated the impact of LND on survival in relation to adjuvant therapy in uterine carcinosarcoma. METHODS: Retrospective data on 1,140 cases were combined from the Netherlands Cancer Registry (NCR) and the nationwide network and registry of histo- and cytopathology in the Netherlands (PALGA). LND was defined as the removal of any nodes. Additionally, cases where 10 nodes or less (LND ≤10) or more than 10 nodes (LND > 10) were removed were analyzed separately. Adjuvant therapy was evaluated as radiotherapy, chemotherapy, or radiochemotherapy. Associations were analyzed by χ2 test, log-rank test, and Cox regression analysis. RESULTS: Overall survival (OS) had improved after total abdominal hysterectomy with bilateral salpingo-oophorectomy with LND > 10 (HR 0.62, 95% CI 0.47-0.83). Adjuvant therapy was related to OS with an HR of 0.64 (95% CI 0.54-0.75) for radiotherapy, an HR of 0.65 (95% CI 0.48-0.88) for chemotherapy, and an HR of 0.25 (95% CI 0.13-0.46) for radiochemotherapy. Additionally, adjuvant treatment was related to OS when lymph nodes were positive (HR 0.22, 95% CI 0.11-0.42), but not when they were negative. CONCLUSION: LND is related to improved survival when more than 10 nodes are removed. Adjuvant therapy improves survival when LND is omitted, or when nodes are positive.


Subject(s)
Carcinosarcoma/mortality , Carcinosarcoma/therapy , Chemotherapy, Adjuvant , Endometrial Neoplasms/mortality , Endometrial Neoplasms/therapy , Lymph Node Excision , Radiotherapy, Adjuvant , Aged , Carcinosarcoma/pathology , Combined Modality Therapy , Endometrial Neoplasms/pathology , Female , Humans , Hysterectomy , Lymph Nodes/pathology , Lymphatic Metastasis/pathology , Middle Aged , Netherlands , Retrospective Studies
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