Abstract
Displacement of the tympanic membrane causing increased middle ear (ME) impedance is usually followed by deterioration of air conduction (AC) threshold. In normal hearing subjects with mobile ossicles low-frequency bone-conduction (BC) threshold also deteriorates (positive Gelle’s test). This is usually interpreted by influence of middle ear factors: Both the elevation of the resonance frequency of the ossicular chain and reduction of the ostio-tympanic component of BC resulting from increased stiffness1. In contrast, Gelle’s test is negative in patients with a fixed stapes2.
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© 1996 Springer-Verlag Berlin Heidelberg
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Maier, W., Ross, U.H. (1996). Round Window Displacement caused by altered middle ear pressure inducing impairment of bone-conduction threshold?. In: Ernst, A., Marchbanks, R., Samii, M. (eds) Intracranial and Intralabyrinthine Fluids. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-80163-1_33
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DOI: https://doi.org/10.1007/978-3-642-80163-1_33
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