Objective and subjective assessment of tracheoesophageal prosthesis voice outcome.
OBJECTIVE
To investigate the relationships between objective measures and the results of subjective assessment of voice quality and speech intelligibility in patients submitted to total laryngectomy and tracheoesophageal (TE) puncture.


METHODS
Retrospective.


METHODS
Twenty patients implanted with voice prosthesis were studied. After surgery, the entire sample performed speech rehabilitation. The assessment protocol included maximum phonation time (MPT), number of syllables per deep breath, acoustic analysis of the sustained vowel /a/ and of a bisyllabic word, perceptual evaluation (pleasantness and intelligibility%), and self-assessment.


RESULTS
The correlation between pleasantness and intelligibility% was statistically significant. Both the latter were significantly correlated with the acoustic signal type, the number of formant peaks, and the F2-F1 difference. The intelligibility% and number of formant peaks were significantly correlated with the MPT and number of syllables per deep breath. Moreover, significant correlations were found between the number of formant peaks and both intelligibility% and pleasantness. The higher the number of syllables per deep breath and the longer the MPT, significantly higher was the number of formant peaks and the intelligibility%. The study failed to show significant correlation between patient's self-assessment of voice quality and both pleasantness and communication effectiveness.


CONCLUSIONS
The multidimensional assessment seems to be a reliable tool to evaluate the TE functional outcome. Particularly, the results showed that both pleasantness and intelligibility of TE speech are correlated to the availability of expired air and the function of the vocal tract.
Department of ENT and Ophthalmology, Policlinico Agostino Gemelli, Università Cattolica del Sacro Cuore, Rome, Italy.
Lucia
L
D'Alatri
Francesco
F
Bussu
Emanuele
E
Scarano
Gaetano
G
Paludetti
Maria Raffaella
MR
Marchese
D000368:Aged; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D007825:Laryngectomy / Q000009:adverse effects*; D007830:Larynx / Q000601:surgery*; D007831:Larynx, Artificial; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D010699:Phonation; D057181:Pleasure; D019919:Prosthesis Implantation / Q000295:instrumentation*; D011677:Punctures; D012119:Respiration; D012189:Retrospective Studies; D012647:Self-Assessment; D013061:Speech Acoustics; D013065:Speech Intelligibility; D013067:Speech Perception; D013068:Speech Production Measurement; D013997:Time Factors; D014132:Trachea / Q000601:surgery*; D016896:Treatment Outcome; D014832:Voice Disorders / Q000209:etiology / Q000503:physiopathology / Q000523:psychology / Q000601:surgery*; D014833:Voice Quality