title: [The observation and analysis the function and morphology of the eustachian tube in secretory otitis media and chronic rhinosinusitis in children].
abstract: OBJECTIVE
  To observe and analyze the function and morphology of pharyngeal ostium of the eustachian tubes in secretory otitis media and chronic rhinosinusitis in children under direct vision,in order to provide an objective basis for clinical treatments.
  
  
  METHODS
  Fifty cases of secretory otitis media,50 cases of chronic rhinosinusitis and a control group of 50 cases with hoarseness were examined under video laryngoscope to observe the pharyngeal ostium morphological changes of the eustachian tubes, and their functional statuses were tested by using acoustic impedance instrument. All the data were analyzed by statistical methods.
  
  
  RESULTS
  (1) In the secretory otitis group, the abnomal rate of the pharyngeal ostium of the eustachian tubes was 94% while the chronic rhinosinusitis group was 80%,and between them there was no significant differences (P > 0.05). But both of them had significant differences with the control group (P < 0.05). (2) In the secretory otitis group, the rate of the eustachian tube dysfunction was 70% while the chronic rhinosinusitis group was 26%, and between them there was significant differences (P < 0.05), and both of them have significant differences when compared with the control group (P < 0.05).
  
  
  CONCLUSIONS
  There are some abnormal points exist in the function and the morphology of the eustachian tube in secretory otitis media and chronic rhinosinusitis in children. Eustachian tube dysfunction played a dominant role in the pathogenesis of secretory otitis media in children rather than the morphological change did compared to the chronic rhinosinusitis in children.
authors.forename: Zhongfang
authors.initials: Z
authors.lastname: Xia
authors.forename: Zhinan
authors.initials: Z
authors.lastname: Wang
authors.forename: Zhongxiang
authors.initials: Z
authors.lastname: Xu
authors.forename: Long
authors.initials: L
authors.lastname: Cui
authors.forename: Cuifen
authors.initials: C
authors.lastname: Wei
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.forename: Fang
authors.initials: F
authors.lastname: Huang
mesh_terms: D016022:Case-Control Studies; D002648:Child; D002908:Chronic Disease; D005064:Eustachian Tube / Q000473:pathology* / Q000503:physiopathology; D006801:Humans; D010034:Otitis Media with Effusion / Q000473:pathology* / Q000503:physiopathology; D012220:Rhinitis / Q000473:pathology* / Q000503:physiopathology; D012852:Sinusitis / Q000473:pathology* / Q000503:physiopathology