title: The impact of tonsillectomy with or without adenoidectomy on voice: acoustic and aerodynamic assessments.
abstract: OBJECTIVE
  To study the objective acoustic assessment and aerodynamic assessment of pediatric patients after tonsillectomy with or without adenoidectomy.
  
  
  METHODS
  Prospective cohort study.
  
  
  METHODS
  Pediatric patients who had received tonsillectomy in our department since 2011 October to 2012 September were selected as study objects. The acoustic analysis was performed by the Multi-Dimensional Voice Program and aerodynamic examination was performed by Phonatory Aerodynamic System. The preoperative and postoperative (1 month after surgery) data were compared.
  
  
  RESULTS
  The postoperative acoustic index had no obvious change compared with the preoperative data. Among the aerodynamic index, postoperative maximum phonation time prolonged and postoperative subglottal pressure decreased comparing with preoperative index.
  
  
  CONCLUSIONS
  From the aerodynamic point of view, tonsillectomy with or without adenoidectomy plays a positive role in the improvement of voice production.
authors.affiliation: Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, P.R.China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Liu
authors.affiliation: Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, P.R.China.
authors.forename: Yiqing
authors.initials: Y
authors.lastname: Zheng
authors.affiliation: Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, P.R.China.
authors.forename: Peng
authors.initials: P
authors.lastname: Tian
authors.affiliation: Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, P.R.China.
authors.forename: Jinshan
authors.initials: J
authors.lastname: Yang
authors.affiliation: Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, P.R.China. Electronic address: zouhua28@163.com.
authors.forename: Hua
authors.initials: H
authors.lastname: Zou
mesh_terms: D000162:Acoustics; D000233:Adenoidectomy; D000293:Adolescent; D000367:Age Factors; D001696:Biomechanical Phenomena; D002648:Child; D002675:Child, Preschool; D005260:Female; D005931:Glottis / Q000502:physiology*; D006801:Humans; D008297:Male; D010699:Phonation; D011312:Pressure; D011446:Prospective Studies; D012815:Signal Processing, Computer-Assisted; D013018:Sound Spectrography; D013061:Speech Acoustics; D013068:Speech Production Measurement; D013997:Time Factors; D014068:Tonsillectomy; D016896:Treatment Outcome; D014833:Voice Quality
keywords: Acoustic assessment; Aerodynamic assessment; Children; Tonsillectomy