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Related Experiment Videos

CO2 laser for treating glottic carcinoma.

M Hirano1, Y Hirade

  • 1Department of Otolaryngology, Head and Neck Surgery, Kurume University School of Medicine, Japan.

Acta Oto-Laryngologica. Supplementum
|January 1, 1988
PubMed
Summary
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CO2 laser treatment for glottic carcinoma shows high recurrence for T1b and T2 stages but offers excellent survival and voice preservation. Recurrences are treatable, making laser therapy a viable option.

Area of Science:

  • Otolaryngology
  • Oncology
  • Laser Surgery

Background:

  • Glottic carcinoma is a significant cause of laryngeal cancer.
  • CO2 laser treatment has emerged as a minimally invasive surgical option.

Purpose of the Study:

  • To evaluate the efficacy of CO2 laser treatment for glottic carcinomas.
  • To assess recurrence rates, survival, and voice preservation outcomes.

Main Methods:

  • Retrospective review of 50 glottic carcinoma cases treated with CO2 laser.
  • Analysis of recurrence rates, survival data, and voice conservation rates based on tumor stage (T1a, T1b, T2).

Main Results:

  • A high recurrence rate (38%) was observed, particularly in T1b and T2 stages.

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  • All recurrences were successfully managed, except in one patient who refused treatment.
  • The 3-year crude survival rate was 92%, and the determinate survival rate was 98%.
  • Voice conservation rates were 100% for T1a, 76% for T1b, and 71% for T2 cases.

    • Conclusions:

    • CO2 laser excision biopsy is effective for glottic T1a carcinomas, preserving vocal function.
    • For glottic T1b and selected T2 carcinomas, laser debulking followed by radiotherapy is a recommended treatment approach.