Impact of adenotonsillectomy on vocal emission in children
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Date
2016
Authors
Dimatos, Spyros Cardoso [UNIFESP]
Neves, Luciano Rodrigues [UNIFESP]
Beltrame, Jessica Monique [UNIFESP]
Azevedo, Renata Rangel [UNIFESP]
Nagata Pignatari, Shirley Shizue [UNIFESP]
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Abstract
Introduction: Adenotonsillectomy is the most common surgery performed by otolaryngologists in pediatric age, and one of the most frequently asked questions about the postoperative period is whether there is a potential for change in vocal pattern of these children. Objective: To evaluate the impact of adenotonsillectomy in the voice emission pattern of children with hypertrophy of palatine and pharyngeal tonsils. Methods: This is a prospective study in which we carried out perceptual auditory assessments and acoustic analysis of 26 children with adenotonsillar hypertrophy at three time points: before surgery, one month and three months after surgery. The following acoustic parameters were estimated using the Praat software: fundamental frequency, jitter, shimmer, and harmonic-noise ratio. Results: A statistically significant change was found between shimmer and harmonic-noise ratio during vowel /u/ production between the preoperative and 1st month postoperative time points. No significant differences were detected for acoustic parameters between preoperative analysis and that of the 3rd month post-operation. Conclusion: Transient changes in acoustic parameters occur in children with adenotonsillar hypertrophy submitted to adenotonsillectomy, progressing to normalization in the 3rd postoperative month. (C) 2015 Associacao Brasileira de Otorrinolaringologia e Cirurgia Cervico-Facial. Published by Elsevier Editora Ltda.
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Brazilian Journal Of Otorhinolaryngology. Sao Paulo, v. 82, n. 2, p. 151-158, 2016.