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THEORETIC CONSIDERATIONS, CLINICAL OBSERVATIONS AND PRACTICAL APPLICATION

GEORGE E. SHAMBAUGH, JR., M.D.

Arch Otolaryngol. 1940;31(1):160-184.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

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, . . . [Full Text PDF of this Article]

Author Affiliations
CHICAGO

Footnotes
Read before the Section on Laryngology, Otology and Rhinology at the Ninetieth Annual Session of the American Medical Association, St. Louis, May 17, 1939.

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