Abstract: Objective: To investigate the clinical curative efficacy of micro-laryngoscopic surgery on polyps, nodules, leukoplakia and cysts of the vocal cords with a suspension micro-laryngoscope under general anesthesia. Methods: The clinical data of 135 cases from 1999 to 2001 in our hospital were reviewed and analyzed. All received laryngoscopic examination before the surgery and regular pathologic determination after the surgery. All cases were followed up for half a year to 7 years. Results: Among 121 cases of vocal cord polyps, 118 cases recovered pronunciation within 2 weeks and 3 cases recovered less well due to a large trauma. No nodules, leukoplakia and cysts of the vocal cords relapsed within half a year in the following up. The success rate was 97.78%. Conclusion: Surgery for localized pathological changes with a suspension laryngoscope under general anesthesia is a safe and reliable treatment with a low rate of relapse.

Key words: Suspension micro-laryngoscope, Vocal cord