Abstract
Purpose
The authors aimed to clarify the optimal treatment strategy and the indication of different treatments in managing advanced laryngeal squamous cell carcinoma (LSCC).
Methods
A total of 9700 patients with advanced (T3-4aN0-3M0) LSCC who treated with (1) surgery alone, (2) surgery plus adjuvant radiation with or without chemotherapy (aCRT/RT), or (3) definitive CRT/RT was retrieved from the SEER database. The propensity score matching (PSM) was applied to balance confounding factors. Kaplan–Meier method and Cox proportional hazards regression were used to comparing the overall survival (OS) of patients.
Results
After optimal matching, 907 patients were screened from each treatment cohort. Kaplan–Meier and multivariate analyses presented that patients treated with surgery plus aCRT/CT had significantly longer OS than those treated with either surgery alone or CRT/RT, even after PSM. However, significant interactions were tested in treatment effects in stratified analyses of the primary subsite, T stage, N stage, and insurance status (PInteraction < 0.05 for all). Specifically, surgery plus aCRT/CT significantly improved the OS of patients with supraglottic, T4a, and N + tumors (P < 0.001 for all), while three treatment modalities achieved equal OS rates for patients with glottic, T3, and N0 tumors (P > 0.05 for all). Besides, supraglottic tumors presented a poorer prognosis than glottic subsite.
Conclusion
Current study suggests that surgery with aCRT/RT is the preferred initial therapy for patients with T4a tumors, whereas patients with T3 tumors could be treated with either surgery (followed by aCRT/RT if it presents N +) or definitive CRT/RT for achieving laryngeal preservation. More-intense treatment should be emphasized for advanced supraglottic cancer.
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Data availability
These data were derived from SEER Program and available in the public domain: https://seer.cancer.gov/.
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Acknowledgements
The authors would like to sincerely thank the SEER Program for open access to the database.
Funding
This work was supported by the new technology development fund for clinical application of the Qilu Hospital of Shandong University, Jinan, Shandong, China (grant numbers 2018–2 and 2019–16).
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AW and WL have contributed equally to this work.
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This study did not require local ethics approval or a statement, as the signed authorization and permission were obtained from the SEER Program to access and use the data cohorts.
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Wushouer, A., Li, W., Zhang, M. et al. Comparison of treatment modalities for selected advanced laryngeal squamous cell carcinoma. Eur Arch Otorhinolaryngol 279, 361–371 (2022). https://doi.org/10.1007/s00405-021-06780-y
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DOI: https://doi.org/10.1007/s00405-021-06780-y