Abstract: Objective To compare the curative effect and recovery between CO₂ laser microsurgery and conventional microscope surgery for vocal polyp resection. Methods The case data of 214 patients with polyps of the vocal cords treated at our hospital between May 2013 and September 2016 were divided into the common CO₂ laser group(50 cases), general traditional microscope group(56 cases), complex CO₂ laser group(48 cases), and complex traditional microscope group(60 cases)according to the different pathological conditions of the patients and the treatment method. The difference in the outcomes of surgery performed using the two surgical methods for the treatment of the different pathological conditions was compared. Results There was no significant difference in the overall curative effect between the two surgical methods(P > 0.05). After surgery, there was no significant difference in the total effective rate for the two surgical methods between patients with common and complex vocal polyps. There was also no difference in the main voice parameters of the patients, including fundamental frequency, fundamental frequency perturbation, amplitude perturbation, noise energy, or harmonic noise ratio(P>0.05). Conclusion Surgical treatment of vocal cord polyps using either CO₂ laser microsurgery or conventional microscope-supported laryngoscope surgery can yield satisfactory results. The best treatment plan must be selected, and surgery and postoperative recovery must be optimized according to each patients specific condition.

Key words: Microscope CO₂ laser, vocal cord polyp, traditional microscope support laryngoscope, vocal effect