Assessing vocal function after chemoradiation for advanced laryngeal carcinoma

Area of Science:

• Otolaryngology
• Speech-Language Pathology
• Oncology

Background:

• Head and neck cancer treatment, including chemoradiation, often impairs vocal function.
• Objective and reliable indicators of vocal function are needed for patient evaluation.
• Existing acoustic measures may not fully capture communication effectiveness.

Purpose of the Study:

• To identify objective parameters for evaluating vocal function in head and neck cancer patients.
• To validate objective voice measures against functional communication outcomes.
• To differentiate vocal function post-chemoradiation therapy.

Main Methods:

• Acoustic and aerodynamic voice parameters were measured in 15 head and neck cancer patients post-chemoradiation and 5 healthy controls.
• Communicative function was assessed via perceptual analysis, clinician scores, and patient self-ratings.
• Objective measures were validated against these functional outcome measures.

Main Results:

• Laryngeal resistance significantly correlated with both patient and observer assessments of voice quality and communication.
• Acoustic measures were abnormal in patients but did not correlate with communication function.
• Perceptual analysis and clinician scores aligned with patient self-ratings.

Conclusions:

• Laryngeal resistance is a reliable objective parameter for assessing vocal function after chemoradiation for head and neck cancer.
• A standardized clinician-based communication scale shows potential as a useful evaluation tool.
• Acoustic measures reflect voice sound but not necessarily effective communication ability.