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DIPLACUSIS: A LOCALIZING SYMPTOM OF DISEASE OF THE ORGAN OF CORTI: THEORETIC CONSIDERATIONS, CLINICAL OBSERVATIONS AND PRACTICAL APPLICATION

DIPLACUSIS: A LOCALIZING SYMPTOM OF DISEASE OF THE ORGAN OF CORTI: THEORETIC CONSIDERATIONS,... Abstract The finding of diplacusis in a case of deafness is a valuable diagnostic aid in localizing the pathologic condition, since diplacusis can be caused only by a lesion of the organ of Corti. This statement is based on theoretic considerations, which I shall discuss, and on clinical observations, which I shall describe. If it is true, some practical applications follow for the diagnosis and treatment of certain cases of deafness and of Ménière's syndrome. INTRODUCTORY OBSERVATIONS Definition.—diplacusis is the hearing of one sound as two. There are three varieties of diplacusis: Diplacusis binauralis echotica, in which a sound is heard a fraction of a second later by one ear than by the other, as a distinct echo, is comparatively rare. I have observed it but once (case 8). Diplacusis monauralis dysharmonica, in which a pure tone is heard by the affected ear as a double tone of two different pitches, References 1. Schilling, R.: Ueber musikalisches Falschhören , Arch. f. Ohren-, Nasen- u. Kehlkopfh. 105:65, 1920.Crossref 2. Shambaugh, G. E., and Knudsen, V. O.: Report of an Investigation of Ten Cases of Diplacusis , Tr. Am. Otol. Soc. 16:397, 1923. 3. Shambaugh, G. E., Jr.: Syndrome of Diplacusis and Nerve Deafness for Low Tones , Arch. Otolaryng. 21:694 ( (June) ) 1935.Crossref 4. Proetz, A. W.: Diplacusis Binauralis Dysharmonica , Ann. Otol., Rhin. & Laryng. 46:119, 1937. 5. Crowe, S. J.: Ménière's Disease , Medicine 17:1 ( (Feb.) ) 1938. 6. Wright, A. J.: Aural Vertigo: Clinical Study , J. Laryng. & Otol. 53:97 ( (Feb.) ) 1938. 7. Shambaugh, G. E., Jr.: The Significance of Diplacusis in Ménière's Syndrome , in Medical Papers Dedicated to Henry Asbury Christian, Baltimore, Waverly Press, Inc., 1936. 8. Dean, L. W.; Agar, J. S., and Linton, L. D.: Allergic Diseases of the Ear , Laryngoscope 47:707 ( (Oct.) ) 1937. 9. Jones, M. F.: Manifestations of Allergy in the Ear , Ann. Otol., Rhin. & Laryng. 47:910 ( (Dec.) ) 1938. 10. Campbell, P.: Personal communication to the author. 11. Dohlman, G.: Personal communication to the author. 12. Hallpike, G. S., and Cairns, H.: Observations on the Pathology of Ménière's Syndrome , J. Laryng. & Otol. 53:625 ( (Oct.) ) 1938. 13. Furstenberg, A. C.; Lashmet, F. H., and Lathrop, F.: Ménière's Symptom Complex: Medical Treatment , Ann. Otol., Rhin. & Laryng. 43:1035 ( (Dec.) ) 1934. 14. Mygind, S. H., and Dederding, D.: Ménière's Disease as an Indication of Disturbances in the Water Metabolism, Capillary Function, and Body Condition . Ann. Otol., Rhin. & Laryng. 47:55 ( (March) ) 1938. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Otolaryngology American Medical Association

DIPLACUSIS: A LOCALIZING SYMPTOM OF DISEASE OF THE ORGAN OF CORTI: THEORETIC CONSIDERATIONS, CLINICAL OBSERVATIONS AND PRACTICAL APPLICATION

Archives of Otolaryngology , Volume 31 (1) – Jan 1, 1940

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Publisher
American Medical Association
Copyright
Copyright © 1940 American Medical Association. All Rights Reserved.
ISSN
0003-9977
DOI
10.1001/archotol.1940.00660010161016
Publisher site
See Article on Publisher Site

Abstract

Abstract The finding of diplacusis in a case of deafness is a valuable diagnostic aid in localizing the pathologic condition, since diplacusis can be caused only by a lesion of the organ of Corti. This statement is based on theoretic considerations, which I shall discuss, and on clinical observations, which I shall describe. If it is true, some practical applications follow for the diagnosis and treatment of certain cases of deafness and of Ménière's syndrome. INTRODUCTORY OBSERVATIONS Definition.—diplacusis is the hearing of one sound as two. There are three varieties of diplacusis: Diplacusis binauralis echotica, in which a sound is heard a fraction of a second later by one ear than by the other, as a distinct echo, is comparatively rare. I have observed it but once (case 8). Diplacusis monauralis dysharmonica, in which a pure tone is heard by the affected ear as a double tone of two different pitches, References 1. Schilling, R.: Ueber musikalisches Falschhören , Arch. f. Ohren-, Nasen- u. Kehlkopfh. 105:65, 1920.Crossref 2. Shambaugh, G. E., and Knudsen, V. O.: Report of an Investigation of Ten Cases of Diplacusis , Tr. Am. Otol. Soc. 16:397, 1923. 3. Shambaugh, G. E., Jr.: Syndrome of Diplacusis and Nerve Deafness for Low Tones , Arch. Otolaryng. 21:694 ( (June) ) 1935.Crossref 4. Proetz, A. W.: Diplacusis Binauralis Dysharmonica , Ann. Otol., Rhin. & Laryng. 46:119, 1937. 5. Crowe, S. J.: Ménière's Disease , Medicine 17:1 ( (Feb.) ) 1938. 6. Wright, A. J.: Aural Vertigo: Clinical Study , J. Laryng. & Otol. 53:97 ( (Feb.) ) 1938. 7. Shambaugh, G. E., Jr.: The Significance of Diplacusis in Ménière's Syndrome , in Medical Papers Dedicated to Henry Asbury Christian, Baltimore, Waverly Press, Inc., 1936. 8. Dean, L. W.; Agar, J. S., and Linton, L. D.: Allergic Diseases of the Ear , Laryngoscope 47:707 ( (Oct.) ) 1937. 9. Jones, M. F.: Manifestations of Allergy in the Ear , Ann. Otol., Rhin. & Laryng. 47:910 ( (Dec.) ) 1938. 10. Campbell, P.: Personal communication to the author. 11. Dohlman, G.: Personal communication to the author. 12. Hallpike, G. S., and Cairns, H.: Observations on the Pathology of Ménière's Syndrome , J. Laryng. & Otol. 53:625 ( (Oct.) ) 1938. 13. Furstenberg, A. C.; Lashmet, F. H., and Lathrop, F.: Ménière's Symptom Complex: Medical Treatment , Ann. Otol., Rhin. & Laryng. 43:1035 ( (Dec.) ) 1934. 14. Mygind, S. H., and Dederding, D.: Ménière's Disease as an Indication of Disturbances in the Water Metabolism, Capillary Function, and Body Condition . Ann. Otol., Rhin. & Laryng. 47:55 ( (March) ) 1938.

Journal

Archives of OtolaryngologyAmerican Medical Association

Published: Jan 1, 1940

References