title: [Comprehensive evaluation of the middle ear function in children with secretory otitis media after tympanotomy tube insertion].
abstract: OBJECTIVE
  To study the method on comprehensive evaluation of the middle ear function in children with secretory otitis media (SOM) after tympanotomy tube insertion.
  
  
  METHODS
  Ear canal volume (ECV), pure tone audiometry and distortion product otoacoustic emission(DPOAE) were carried out in 31 children(43 ears) with SOM before and 1 month after tube insertion,in the meantime Eustachian tube function was recorded. The tympanotomy tube was observed under microscope.
  
  
  RESULTS
  After one month of tube insertion, the hearing level was improved in 39 ears with an ECV > 2.0 ml. In addition,the detection rate and amplitude of DPOAE were significantly increased in these 39 ears. No case of the function of Eustachian tube was complete recovered.
  
  
  CONCLUSIONS
  ECV, pure tone audiometry, DPOAE and inflation-deflation test are significantly clinical worth for comprehensive evaluation of the middle ear function in children with SOM after tympanotomy tube insertion.
authors.affiliation: Department of Otorhinolaryngology, the First Affiliated Hospital of Medical College, Shantou University, Shantou, 515041, China. maoxm1203@163.com
authors.forename: Xiaomei
authors.initials: X
authors.lastname: Mao
authors.forename: Lili
authors.initials: L
authors.lastname: Lin
authors.forename: Chaosheng
authors.initials: C
authors.lastname: Zheng
authors.forename: Ruirong
authors.initials: R
authors.lastname: Zheng
authors.forename: Xinqiang
authors.initials: X
authors.lastname: Lin
authors.forename: Zhizhong
authors.initials: Z
authors.lastname: Shen
authors.forename: Huige
authors.initials: H
authors.lastname: Wang
mesh_terms: D000158:Acoustic Impedance Tests; D001301:Audiometry, Pure-Tone; D002648:Child; D002675:Child, Preschool; D004432:Ear, Middle / Q000503:physiopathology / Q000601:surgery; D005064:Eustachian Tube; D005260:Female; D006801:Humans; D008297:Male; D010034:Otitis Media with Effusion / Q000503:physiopathology* / Q000601:surgery; D016896:Treatment Outcome