ABSTRACT
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.
RESUMO INTRODUÇÃO: Adenotonsilectomia é o procedimento cirúrgico mais realizado pelos otorrinolaringologistas em pacientes pediátricos, e entre as dúvidas mais frequentes a respeito do pós-operatório, inclui-se a possibilidade de modificações no padrão vocal dessas crianças. OBJETIVO: Avaliar o impacto da adenotonsilectomia no padrão de emissão vocal de crianças com hipertrofia de tonsilas palatinas e faríngea. MÉTODO: Trata-se de estudo prospectivo, em que foram realizadas a avaliação perceptiva-auditiva e a análise acústica da voz de 26 crianças com hipertrofia adenotonsilar em três oportunidades: no pré-operatório e no 1° e 3° meses após o procedimento cirúrgico. Os parâmetros acústicos frequência fundamental, jitter, shimmer e proporção harmônico-ruído foram avaliados por meio do programa Praat. RESULTADOS: Houve uma alteração estatisticamente significante entre o shimmer e a proporção harmônico-ruído da emissão da vogal/u/entre o período pré-operatório e o 1° mês do pós-operatório. Não houve diferenças significantes dos parâmetros acústicos entre a análise pré-operatória e aquela realizada no 3° mês do pós-operatório. CONCLUSÃO: Crianças com hipertrofia adenotonsilar submetidas à adenotonsilectomia cursam com alterações transitórias dos parâmetros acústicos, evoluindo com a normalização dos mesmos no 3° mês do pós-operatório.
Subject(s)
Child , Child, Preschool , Female , Humans , Male , Palatine Tonsil/surgery , Speech Acoustics , Voice Quality , Adenoidectomy , Hypertrophy/surgery , Postoperative Period , Prospective Studies , Palatine Tonsil/pathology , TonsillectomyABSTRACT
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.
Subject(s)
Palatine Tonsil/surgery , Speech Acoustics , Voice Quality , Adenoidectomy , Child , Child, Preschool , Female , Humans , Hypertrophy/surgery , Male , Palatine Tonsil/pathology , Postoperative Period , Prospective Studies , TonsillectomyABSTRACT
PURPOSE: The objective of this research was to compare the number and types of grammatical and non-grammatical silent pauses presented by stutterers and subjects with Asperger syndrome in their narratives. METHOD: Ten children who stutter and four participants with Asperger syndrome (mean ages of both groups 10 years) were assessed at the Speech and Language Disorders Department of the Universidade Federal de São Paulo/Brasil. They narrated a story based on a pre-selected sequence of pictures. They were filmed and their productions were analyzed using version 5.0.47 of Praat (http://www.fon.hum.uva.nl/praat/download_win.html). Silent intervals in the speech that ranged from 0.25 to 4s were considered pauses. The pauses were classified as grammatical and non-grammatical, depending on the words that preceded and followed them. RESULTS: Both groups presented grammatical and non-grammatical pauses and the former predominated. The children with Asperger syndrome produced a greater number of pauses than the stutterers. EDUCATIONAL OBJECTIVES: The reader will be able to: (1) characterize the use of pauses in the oral narrative; (2) distinguish a grammatical pause from a non-grammatical pause regarding the use and function; (3) recognize the pattern of pause found in the two populations.
