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KMID : 0858620070110020107
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Korean Journal of Audiology
2007 Volume.11 No. 2 p.107 ~ p.113
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Correlation Between Volume and Viscosity of Middle Ear Fluid and the Tympanometric Parameters in Children with Otitis Media with Effusion
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Lee Young-Suk
Lee Keun-Young
Kim Young-Mi
Cho Seok-Hyun
Park Chul-Won
Lee Seung-Hwan
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Abstract
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Background and Objectives : Type B tympanogram is usually considered a unique entity for detecting middle ear fluid. Its shape may vary from a rounded type B with a ’pseudopeak’ to a completely flat response. The aim of this study was to compare the characteristics of the type B tympanogram curve to the volume and viscosity of middle ear fluid.
Materials and Methods : We analyzed the correlation between volume and viscosity of middle ear fluid collected during myringotomy and the preoperative tympanometry in 94 children with otitis media with effusion.
Results: As the middle ear fluid volume and viscosity increase, the straight type B tympanogram increases significantly. As the volume and viscosity increase, maximal admittance of the ear significantly decreases. But the peak pressure was not on statistically significant relationship with the characteristics of middle ear fluid.
Conclusion: Characteristics of type B tympanogram curve were correlated with the volume and viscosity of middle ear fluid in children with otitis media with effusion.
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KEYWORD
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Otitis media with effusion, Tympanometry
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