Politzer's text-book of the diseases of the ear and adjacent organs... / by Adam Politzer ; translated by Oscar Dodd ; edited by Sir William Dalby.

  • Politzer, Adam, 1835-1920.
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: Politzer's text-book of the diseases of the ear and adjacent organs... / by Adam Politzer ; translated by Oscar Dodd ; edited by Sir William Dalby. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

    163/760 (page 147)
    ■diagnostic significance has been demonstrated by means of sections from Politzer,* Lucae, Bezold, and others. Although the diagnostic value of this test is limited, yet in a series of cases it affords valuable assistance in so far that often, vv'hen other symptoms are lacking, Einne's test will establish the diagnosis between middle ear and labyrinth disease. This test must always be considered in connection with the general results of the examination, especially to the amount of deafness for speech, the duration of perception for the tones of the tuning-fork through the bone (p. 143), and to the perception of high and low tones. The general results of this test may be summed up as follows : 1. Einne's test is of important diagnostic assistance in those cases of chronic middle ear affections with marked deafness,! in which the diagnosis cannot be made by other methods of examination. The Einne test is in the majority of these cases negative, provided that no deeper complication, with an affection of the auditory nerve, is present. 2. The negative Einne speaks so much the more for hindrance to ■sound conduction the greater the difference in time between the ■duration of perception for the tuning-fork before the ear and from the mastoid process. This diagnosis will be supported by the failure to perceive low tones and the relative better perception for the higher tones ; farther, by the lengthened perception of the tone of the tuning-fork through the cranial bones (Schwabach). In unilateral deafness the negative Einne will be supported in the diagnosis of hindrance to sound-conduction if at the same time, in Weber's test, the perception is localized on the diseased side. 3. In middle ear affections in which there is only slight or a moderate amount of deafness, Einne's test has only small diagnostic value, as in the majority of these cases it gives a positive result. This is very often the case in purulent middle ear inflammation, with perforation of the membrana tympani. 4. In middle ear affections with a slight amount of deafness, the diagnostic value of Weber's test is to be placed above the Einne test. 5. In old individuals, in which the duration of perception through the cranial bones is shortened (Liebermann), Einne's test often gives no positive result. * Brunner, Z. f. O. vol. xiii., p. 263 ; Bezold, Erkldrungsversuch, Z. Verhalten d. Luft und Knochenleitung beim Binne'sehen Versuch, Munchen, 1885 ; Roosa, Archives of Otology, 1884 ; Emmerson, Z. f. 0. vol. xiii., p. 53 ; Schwabach, Z.f. 0. vol. xiv., p. 64; Politzer, i?e?7c/t< d. Vers, suddeutscher und schiveitzer Ohrndrzte, Munchen, 1885 ; Eitelberg, Z. f. 0. vol. xvi. ; Rohver, 3Io7iograph, Zurich, 1885. f According to Lucae, Rinne's test can only be relied upon when the hearing distance has decreased to Im. for whispering.