Vol 12 No 1 (1981)
Article
How to Cite
J, D. S., VU, N., & D’Mello, J. (1). Identification of Hypermobile Scars on Tympanic Membrane Using Automatic Tympanometry. Journal of All India Institute of Speech and Hearing, 12(1), 69-75. Retrieved from http://203.129.241.91/jaiish/index.php/aiish/article/view/610
Abstract
Three subjects exhibited abnormal, atypical tympanographs when tested with electromedics 86 AR Tympanometer. These tympanographs were similar to Ad type, but with a clear notch. Repeated measures yielded similar findings. Ipsilateral reflexes were present in all these ears. Microscopic examination revealed fine, thin, hypermobile scars. Patients with flaccid tympanic membrane yielded d type tympanographs without a notch. The notched tympanographs obtained in tympanometer 86 AR seem to help in differential diagnosis.
References
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Liden, G., e t al (1974) Tympanometry for the d iagnosis of ossicular disruptions Arch. Otolaryngol. 99, 23.
Northern, J. L., and Grimes, A. M., (1978) Introduction to Acoustic impedance in. Handbook of Clinical Audiology, J. Katz (2nd Ed.) Williams and Wilkins, Baltimore.
Samuel, J. D., (1980) Recent Advances in Audiology-Impedance Auidometry, Second South Zone EN T Conference, Hyderabad, 6th and 7th Sept., 1980.
Feldman, A. S., (1977) Diagnostic Application and Interpretation of Tympanic and Acoustic Reflexes, Audiology, 16, 294.
Harford, E. R., (1980) Tympanometry,in clinical impedance audiometry, J. F, Jergerand J. L. Northern (Ed)-American Electromedics Corporation, Massachussets.
Jerger, J. F. , (1973) Clinical experience with impedance audiometry, Arch. Otolnryngol, 92, 311.
Jerger, J. F. , (1974) Second International Symposium on Impedance Measurement, Houston, TX, Audiology, 13, 271.
Jerger, J.' F., and Hayes, D. (1980) Diagnostic Applicaticns of impedance audicmetry: Middle ear disorder, sensorineural disorder in clinical; impedance audiometry, J. 1". Jirgerand J. L. Northern (Ed)., American Electromedics Corporation. Massachussets.
Liden, G., e t al (1974) Tympanometry for the d iagnosis of ossicular disruptions Arch. Otolaryngol. 99, 23.
Northern, J. L., and Grimes, A. M., (1978) Introduction to Acoustic impedance in. Handbook of Clinical Audiology, J. Katz (2nd Ed.) Williams and Wilkins, Baltimore.
Samuel, J. D., (1980) Recent Advances in Audiology-Impedance Auidometry, Second South Zone EN T Conference, Hyderabad, 6th and 7th Sept., 1980.