Αρχειοθήκη ιστολογίου

Παρασκευή 15 Απριλίου 2016

Adjuvant Pelvic Radiation Therapy+/-Vaginal Brachytherapy in Patients With High-risk Stage I or Stage II Uterine Papillary Serous, Clear Cell, and High-grade Endometrioid Carcinoma.

Purpose: Radiation therapy (RT) for stages I-II uterine papillary serous carcinoma (UPSC), clear cell (CC), and high-grade endometrioid (HGE) carcinoma present a treatment challenge. Regimens include external beam radiotherapy (EBRT) with or without brachytherapy. We examine the use of these radiation modalities in these endometrial cancers (EC) with respect to cause-specific survival (CSS). Methods: The Surveillance, Epidemiology, and End Results (SEER) database was queried for patients with AJCC stages I-II UPSC, CC, or HGE cancer treated with hysterectomy and RT between 1998 and 2008. Patients who did not receive adjuvant RT or received brachytherapy alone were excluded. CSS was evaluated by the Kaplan-Meier survival analysis and the log-rank test was used to compare CSS. Multivariate analysis was performed using the Cox proportional hazards regression model. Adjusted hazard ratios (HR) were calculated for risk of EC death. Results: There were 1653 patients included in this analysis. The overall 100-month CSS for the entire cohort was 81.0%. The 100-month CSS was 85.3% for EBRT alone and 86.5% for EBRT+brachytherapy (P=0.72). Stage IC/IIA/IIB patients had a greater risk of EC death compared with stage IA/IB patients (adjusted HR=2.39; P

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