Abstract:Objective To investigate the therapeutic efficacy and safety of carbon dioxide laser versus open partial laryngectomy in patients with laryngeal squamous cell carcinoma.Methods Using random number tables, 120 patients with laryngeal squamous cell carcinoma treated at Shanxi Norman Bethune Hospital from February 2021 to July 2024 were enrolled. Baseline characteristics, including smoking history (39 patients) and alcohol consumption history (26 patients), showed no statistically significant differences between the groups. The survival status, surgical parameters [operation time, intraoperative blood loss, hospital stay], laryngeal function [Eating Assessment Tool (EAT-10), Kubota water-swallowing test], postoperative pain [Visual Analogue Scale (VAS) at rest], and complication rates were compared between the groups. Statistical analyses used t-tests or χ2 tests.Results In the observation group (60 cases), 2 patients died during follow-up (3-year cumulative survival rate: 96.67%). In the control group (60 cases), 3 patients died and 1 was lost to follow-up (3-year cumulative survival rate: 93.33%). There was no statistically significant difference in 3-year survival rate between the two groups (P > 0.05). The observation group had shorter operation time, less intraoperative blood loss, and shorter postoperative hospital stay than the control group (P < 0.05). The differences in EAT-10 and Kubota water-swallowing test scores before and after surgery were smaller in the observation group than in the control group (P < 0.05). For VAS scores at rest at 6, 12, 24, and 48 h postoperatively: (1) There were statistically significant differences across time points (P < 0.05); (2) The observation group had lower VAS scores than the control group (P < 0.05), indicating better analgesia; (3) There was no statistically significant difference in the trend of VAS score changes between groups (P > 0.05). The complication rate was lower in the observation group than in the control group (P < 0.05).Conclusion Carbon dioxide laser treatment demonstrates better clinical efficacy than open partial laryngectomy in laryngeal squamous cell carcinoma, with less surgical trauma, faster recovery, better preservation of laryngeal function, and fewer complications.