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Vocal analysis after vertical partial laryngectomy.

Chul-Ho Kim1, Young Chang Lim, Kyubo Kim

  • 1Department of Otorhinolaryngology, Ajou University School of Medicine, Suwon, Korea.

Yonsei Medical Journal
|January 3, 2004
PubMed
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Vertical partial laryngectomy (VPL) without glottic reconstruction resulted in unsatisfactory voice quality. Objective phonatory data revealed significant differences compared to controls, highlighting the need for improved surgical techniques.

Area of Science:

  • Otolaryngology
  • Speech-Language Pathology
  • Oncology

Background:

  • Reconstruction of the glottic region after vertical partial laryngectomy (VPL) is believed to improve vocal function.
  • Limited data exists on voice outcomes following VPL without glottic reconstruction.

Purpose of the Study:

  • To obtain objective phonatory data in patients who underwent VPL without glottic reconstruction.
  • To evaluate voice quality and identify acoustic and aerodynamic parameters affected by this surgical approach.

Main Methods:

  • A cohort of 13 patients treated with VPL without reconstruction (T1/T2 glottic cancer) was analyzed.
  • Objective voice assessment included acoustic (fundamental frequency, jitter, shimmer, NHR) and aerodynamic (MPT, MFR) analysis.
  • Videostroboscopy was used to evaluate glottic closure, mucosal wave, and arytenoid movement.

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Main Results:

  • Significant differences were observed in fundamental frequency, jitter, shimmer, NHR, MPT, and MFR compared to a normal control group.
  • Videostroboscopy revealed incomplete glottic closure, reduced mucosal wave, supraglottic voicing, and abnormal arytenoid movement in many patients.
  • The overall voice quality was deemed unsatisfactory in the VPL group without reconstruction.

Conclusions:

  • Objective phonatory data confirms that VPL without glottic reconstruction leads to impaired voice quality.
  • Findings suggest that current surgical techniques without reconstruction yield suboptimal voice outcomes.
  • Further comparative studies of different VPL techniques are necessary to optimize voice quality for patients.