Abstract
PURPOSE: Local failure after endoscopic laryngeal surgery (ELS) for early glottic cancer mounts a challenge to researchers to investigate risk factors of recurrence. The present study was therefore designed to explore the prognostic factors in patients who underwent ELS for early glottic cancer. PATIENTS AND METHODS: We reviewed 328 patients with T1-2N0 glottic cancer who were treated with either ELS or open surgery between 2007 and 2018 at our institution. Survival, univariate and multivariate analyses were performed in different groups (ELS vs open surgery; < 65 vs ≥ 65 years). RESULTS: Age was discovered to be the independent prognostic factor of DFS for patients treated with ELS (HR = 3.673, p = 0.003), but not for patients who underwent open surgery. Survival analysis performed on young patients (< 65 years) showed that survival outcomes between different surgery modalities were significantly different (ELS vs open surgery: five-year DFS: 72.5 vs 84.7%, p = 0.034). Univariate and multivariate analyses further confirmed the finding, whereas these results did not appear in old patients (≥ 65 years). CONCLUSION: Young patients (< 65 years) treated with ELS had less favorable oncologic outcomes than those treated with open surgery. Young patients (< 65 years) are advised to consider open surgery over ELS.