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[Quantitative and objective evaluation of vocal function after vertical hemilaryngectomy].

D Liu1, S Bi, G Wang

  • 1Department of Otorhinolaryngology, Union Hospital of Tongji Medical University, Wuhan 430022.

Lin Chuang Er Bi Yan Hou Ke Za Zhi = Journal of Clinical Otorhinolaryngology
|March 27, 2001
PubMed
Summary

The phono laryngograph objectively assesses vocal function. Post-vertical hemilaryngectomy patients showed significant vocal differences compared to controls, with changes observed over time.

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Area of Science:

  • Otolaryngology
  • Speech-Language Pathology
  • Medical Instrumentation

Context:

  • Vocal function assessment is crucial for patients undergoing laryngeal surgery.
  • Vertical hemilaryngectomy is a surgical treatment for laryngeal carcinoma.
  • Objective vocal function evaluation aids in understanding surgical outcomes.

Purpose:

  • To objectively evaluate vocal function in patients treated with vertical hemilaryngectomy using a phono laryngograph.
  • To compare vocal function parameters between post-surgery patients and a healthy control group.
  • To assess long-term changes in vocal function after vertical hemilaryngectomy.

Summary:

  • A phono laryngograph was used to assess vocal function in 30 normal adults and 30 patients post-vertical hemilaryngectomy.

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  • Significant differences in mean airflow rate, intensity, maximum phonation time (MPT), and pitch were found between surgical and normal groups (P < 0.01 for airflow, intensity, MPT; P < 0.05 for pitch).
  • Vocal function parameters showed significant differences between patients evaluated two years and ten years post-surgery (P < 0.01).

    • Impact:

    • Objective data on vocal function post-hemilaryngectomy can inform patient counseling and rehabilitation strategies.
    • The phono laryngograph proves valuable for quantifying vocal changes after laryngeal surgery.
    • Findings highlight the dynamic nature of vocal recovery and potential long-term alterations following vertical hemilaryngectomy.