Acoustic and Aerodynamic Measurements of Voice Production after Near-Total Laryngectomy with Epiglottoplasty
| Autor: | Bruno Guelfucci, Antoine Giovanni, Michel Zanaret, Ping Yu, Danièle Robert |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Adult
Male Linguistics and Language medicine.medical_specialty Voice Quality Computer science Acoustics medicine.medical_treatment Laryngectomy Audiology Near-total laryngectomy Epiglottis Speech Acoustics Language and Linguistics Voice analysis Speech and Hearing medicine Humans Postoperative Period Partial laryngectomy Aged Voice Disorders Air Aerodynamics Middle Aged LPN and LVN Voice production Otorhinolaryngologic Surgical Procedures Subglottic pressure |
| Zdroj: | Folia Phoniatrica et Logopaedica. 54:304-311 |
| ISSN: | 1421-9972 1021-7762 |
| DOI: | 10.1159/000066152 |
| Popis: | Objective voice analysis based on simultaneous aerodynamic and acoustic measurements is not common and there have been no reports dealing specifically with aerodynamic features of laryngeal performance after partial laryngectomy. The present study describes objective voice analysis after near-total laryngectomy using the Tucker technique (NTLT). We performed and compared acoustic and aerodynamic measurements in patients who underwent NTLT (n = 21) and normal controls (n = 10). Acoustic indexes of instability of frequency and intensity (jitter and shimmer) were always higher in patients. Oral airflow and estimated subglottic pressure (ESPG) were significantly greater in patients than in controls (400 vs. 169 cm3/s and 23 vs. 6.2 hPa, respectively). Poor closure of the glottis after surgery leads to a significant increase in glottal leakage in comparison with controls. Higher ESGP values observed in patients are probably related to two factors. The first involves compensation for glottal leakage in order to achieve sufficient air pressure to initiate vibration of the mucosa. The second factor is the poor vibratory quality of the residual mucosa, which may require higher pressure levels than the more compliant normal cord to initiate vibration. Our findings confirm the adverse effects of NTLT on the aerodynamic efficiency of the larynx due to glottal leakage and poor compliance of postoperative mucosa. Aerodynamic measurements could provide the basis for standardized objective evaluation of postoperative voice quality. |
| Databáze: | OpenAIRE |
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