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Round window reflex and oval window fistulae

Published online by Cambridge University Press:  29 June 2007

D. S. Grewal
D. S. Grewal*
Affiliation:
Professor and Head of the Department of Otolaryngology and Head and Neck Surgery, T. N. Medical College and B. Y. L. Nair Charitable Hospital, Bombay-400 008 (India).
*
D. S. Grewal, 1/5 (Doctors Quarters), Government Colony, (Near Mahalaxmi Race Course), Haji Ali, Bombay-400 034, India.
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Abstract

The round window reflex is normally absent in stapedial fixation. In this study, six cases of oval window fistula are described in which the round window reflex was absent. This is probably because there is insufficient pressure transmitted to the round window membrane through the perilymph because of leakage from the oval window. This is considered as an important diagnostic sign of oval window/stapes footplate ligament disruption.

Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 103 , Issue 6 , June 1989 , pp. 562 - 565
Copyright
Copyright © JLO (1984) Limited 1989

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References

Grewal, D. S., Hiranandani, N. L. and Pusalkar, A. G. (1983) Traumatic perilymph fistulae of the round and oval windows. Journal of Laryngology and Otology, 97: 1149–1155.Google Scholar
Grewal, D. S. and Shah, D. D. (1986) Round window membrane perforation–A complication of chronic suppurative otitis media. Journal of Laryngology and Otology, 100: 1307–1309.Google Scholar
Healy, G. B., Strong, M. S. and Sampogna, D. (1974) Ataxia, vertigo and hearing loss–A result of rupture of inner ear window, Archives of Otolaryngology, 100: 130–135.Google Scholar
Pullen, F. W. (1972) Round window rupture–A sudden deafness. Transactions of the American Academy of Ophthalmology and Otolaryngology, 76: 1444–1450.Google Scholar