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[Relationship between adenoids hypertrophy and tympanogram/eustachian tube function in children]
Hongguang Pan1, Lan Li, Zhenjiang Liang
1Department of Otolaryngology, Shenzhen Childrerns Hospital, Shenzhen, 518026, China. phg_ent@yahoo.com.cn
Objective:
To evaluate the correlation between adenoidal-nasopharyngeal ratio (AN ratio) and tympanogram/eustachian tube function in children.
Method:
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.
Result:
(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.
Conclusion:
Eustachian tube dysfunction caused by adenoids hypertrophy is the etiologic factor of secretory otitis media.
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