title: [Acoustic rhinometry in the diagnosis of children with obstructive sleep apnea-hypopnea syndrome].
abstract: OBJECTIVE
  To explore the role of acoustic rhinometry in the diagnosis of children with obstructive sleep apnea-hypopnea syndrome (OSAHS).
  
  
  METHODS
  Thirty-six patients with OSAHS were measured with acoustic rhinometry before and 1 month after adenoidectomy. Twenty patients with adenoidectomy were measured before and after operation, the changes in volume recorded by acoustic rhinometry were compared with the adenoid volume obtained by the method of "drain off the water".
  
  
  RESULTS
  The volume of nasopharynx of adenoid removal patients was significantly bigger than that of before operation. The adenoid volume of 20 patients obtained by the method of "drain off the water" was bigger than the calculated changes in nasopharynx volume recorded by acoustic rhinometry, however, they were found to be significantly interrelated.
  
  
  CONCLUSIONS
  Acoustic rhinometry is a better method to calculate the size of adenoid in children with OSAHS and it could become a routine examination before adenoidectomy.
authors.affiliation: Department of Otorhinolaryngology-Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University Medical College, Shanghai, 200093, China. horsecj2005@yahoo.com.cn
authors.forename: Jie
authors.initials: J
authors.lastname: Chen
authors.forename: Jun
authors.initials: J
authors.lastname: Yang
authors.forename: Hao
authors.initials: H
authors.lastname: Wu
authors.forename: Xiangping
authors.initials: X
authors.lastname: Chen
authors.forename: Lan
authors.initials: L
authors.lastname: Cheng
mesh_terms: D000233:Adenoidectomy; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D009666:Nose / Q000503:physiopathology; D023842:Rhinometry, Acoustic / Q000379:methods*; D020181:Sleep Apnea, Obstructive / Q000175:diagnosis* / Q000503:physiopathology*