Objective: The optimal initial management strategy for cervical cancer with lymph node metastases (LNM) remains a topic of ongoing debate. This study aimed to explore the correlation between surgery followed by postoperative radiotherapy (PORT) and definitive radiotherapy (RT), as well as their impact on the prognosis of patients with LNM.
Methods: Patients with positive lymph nodes (PLNs) in 2009 FIGO stage I-III cervical cancer were selected from SEER database. Kaplan-Meier and log-rank analysis were utilized to assess survival outcomes. Cox and Interaction analyses were employed to compare the survival benefits.
Results: 2936 patients were included in this study. Multivariate analysis revealed the choice of primary treatment significantly impacted both cancer-specific survival (CSS) and overall survival (OS), serving as an independent prognostic factor for patients with LNM. After adjusting for imbalanced variables, surgery plus PORT exhibited significant improvements in CSS and OS in the stage I-II and PLNs ≤ 5 subgroups. However, no statistically significant difference was observed between the two treatment modalities in stage III and PLNs > 5 subgroups. Through interaction analysis, it was observed that stage I-II and PLNs ≤ 5 subgroups exhibited a significant survival benefit from surgery plus PORT.
Conclusion: Surgery plus PORT could lead to improved outcomes for cervical cancer in patients with stage I-II or PLNs ≤ 5. However, this approach did not apply to patients with stage III or PLNs > 5. Therefore, a comprehensive assessment of LNM and local tumor spread should guide rationalized treatment modalities when managing patients presenting LNM.
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