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Title: Objective voice evaluation after radiation therapy for T1 and T2 glottic tumors
Authors: Carrara-de-Angelis, Elisabete [UNIFESP]
Santos, C. R.
Cervantes, Onivaldo [UNIFESP]
Kowalski, Luiz Paulo [UNIFESP]
Abrahao, M.
Furia, C.
Brandao, A. P.
Martins, N.
Vicent, JJA
Universidade Federal de São Paulo (UNIFESP)
Issue Date: 1-Jan-1998
Publisher: Medimond S R L
Citation: 1st World Congress On Head And Neck Oncology. 40128 Bologna: Medimond S R L, p. 341-343, 1998.
Abstract: Radiotherapy is one of the treatment modalities for early glottic carcinomas with similar cure rates been reported for radiation or surgery. Restoration of voice can be considered one of the criterions for deciding among the treatment options. The purpose of this study was to assess vocal characteristics of patients with glottic carcinomas after they had undergone radiation therapy. Fourteen males and five females (17T1, 2T2) that had previously been treated with external irradiation for SCC volunteered for this study. The voice data consisted of 3 seconds of sustained /a/ vowel of each speaker and were submitted to perceptual and acoustic evaluation. Results showed mean fundamental frequency value of 129,2 Hz for males and 180,4 Hz for females, mean PPQ of 1,306%, mean APQ of 6,3060% and mean NHR of 0,18. Perceptual evaluation showed 4 patients with normal voices, 10 with mild disphonia and 5 with moderated disphonia. This study indicate that radiotherapy provides good voice quality.
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