title: [Relationship between adenoids hypertrophy and tympanogram/eustachian tube function in children].
abstract: OBJECTIVE
  To evaluate the correlation between adenoidal-nasopharyngeal ratio (AN ratio) and tympanogram/eustachian tube function in children.
  
  
  METHODS
  A prospective clinical study from February 2004 to October 2004 was carried out. A total of 120 children with adenoids hypertrophy and 20 normal children were examined. The relationship between AN ratio and middle-ear pressure was evaluated, the eustachian tube function was compared between the children with adenoids hypertrophy and the normal.
  
  
  RESULTS
  (1) Middle ear pressures were negative related to the AN ratio (r = -0.41, P < 0.05); (2) the eustachian tube function of the children with adenoids hypertrophy was worse than the normal; (3) the relation between the eustachian tube function and the AN ratio was not statistical difference.
  
  
  CONCLUSIONS
  Eustachian tube dysfunction caused by adenoids hypertrophy is the etiologic factor of secretory otitis media.
authors.affiliation: Department of Otolaryngology, Shenzhen Childrerns Hospital, Shenzhen, 518026, China. phg_ent@yahoo.com.cn
authors.forename: Hongguang
authors.initials: H
authors.lastname: Pan
authors.forename: Lan
authors.initials: L
authors.lastname: Li
authors.forename: Zhenjiang
authors.initials: Z
authors.lastname: Liang
authors.forename: Zhixiong
authors.initials: Z
authors.lastname: Xian
mesh_terms: D000234:Adenoids / Q000473:pathology*; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D005064:Eustachian Tube / Q000503:physiopathology*; D005260:Female; D006320:Hearing Tests; D006801:Humans; D006984:Hypertrophy; D008297:Male; D010034:Otitis Media with Effusion / Q000473:pathology / Q000503:physiopathology; D011446:Prospective Studies