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Prognosis and treatment regimens for patients with different lymph node statuses in locally advanced cervical cancer
Wendi Guo1, Runling Ren1, Na Li2
1School of Medicine, Nankai University, Tianjin, 300071, China; Tianjin Central Hospital of Obstetrics and Gynecology, Tianjin, China.
Objective:
The survival outcomes of Stage IIIC1 in FIGO 2018 showed significant heterogeneity and it seems unreasonable to administer a uniform treatment regimen for Stage IIIC1 patients. This study aimed to assess the survival outcomes among patients with locally advanced cervical cancer based on various lymph node statuses, T-stage classifications, and treatment modalities.
Methods:
This is a population-based cohort study utilizing the Surveillance, Epidemiology, and End Results Program from 2004 to 2018. Propensity score-based inverse probability of treatment weighting was used to achieve covariate balance. Women with locally advanced cervical cancer on different lymph node statuses who underwent radical hysterectomy + pelvic lymphadenectomy + chemoradiotherapy, chemoradiotherapy, or radiotherapy alone were examined. Trends, patient characteristics, and survival outcomes were compared across different treatment regimens.
Results:
Among 8777 patients analyzed, patients with early T-stage and married were identified as independent protective factors for cancer-specific survival regardless of lymph node status. The survival outcomes ranked in descending order as follows: T1N0>T2N0>T1N1 = T2N1>T3N0>T3N1. Therefore, the FIGO Stage IIIC1 was re-stratified into IIC (T1N1+T2N1) and IIIC1(T3N1). Patients who underwent radical hysterectomy combined with adjuvant therapy exhibited superior 5-year cancer-specific survival rates compared to those treated with chemoradiotherapy among IB3, IIA2, and IIC. The therapeutic efficacy of chemoradiotherapy surpassed that of radiotherapy alone in IIIA, IIIB, IIIC1(T3N1), and IVA patients.
Conclusion:
Restratification of Stage IIIC1 based on T-stage effectively discerns patients with divergent prognoses. Radical surgery + chemoradiotherapy is significantly associated with improved survival in early T-stage, regardless of lymph node status in locally advanced cervical cancer.
