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Voice following radiotherapy.

M L Stoicheff

    The Laryngoscope
    |April 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    Most patients with glottic cancer treated with radiotherapy report normal voices, but 80% experience persistent vocal difficulties. Smoking decreased significantly post-treatment, with no correlation to voice recovery or quality.

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    Area of Science:

    • Otolaryngology
    • Radiation Oncology
    • Speech-Language Pathology

    Background:

    • Glottic cancer radiotherapy can impact voice quality.
    • Understanding long-term vocal outcomes is crucial for patient management.

    Purpose of the Study:

    • To assess the voice status of patients after radiotherapy for glottic cancer.
    • To investigate factors influencing voice recovery and quality.

    Main Methods:

    • Survey of 227 glottic cancer patients treated with radiotherapy (1960-1971).
    • Preliminary acoustic analysis of speaking fundamental frequency in 22 patients.
    • Analysis of patient-reported vocal difficulties, smoking habits, and recovery time.

    Main Results:

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  • 83% reported normal to near-normal voice; 80% experienced persistent vocal issues (fatigue, hoarseness, reduced loudness).
  • Voice recovery varied (9-26 weeks); favorable ratings increased with time post-treatment.
  • Heavy smoking decreased post-treatment (27% vs. 65% pre-treatment); no smoking-voice correlation found.
  • A trend towards lower speaking fundamental frequency was observed in irradiated patients and heavy smokers, suggesting vocal cord thickening.

    • Conclusions:

    • Radiotherapy for glottic cancer often results in persistent, though generally manageable, vocal difficulties.
    • Smoking cessation post-treatment is significant, but does not directly correlate with voice outcomes.
    • Further instrumental voice analysis is recommended for a comprehensive understanding of laryngeal function recovery.