Diseases of the nose and throat; a text-book for students and practitioners . ctor paralysis, it is well to use a very weak current,and to place the electrode on the muscle itself, namely, directly THERAPEUTICS OF LARYNGEAL PARALYSES. 365 to the back of the larynx, in the lower part of the can be clone with a negative laryngeal electrode, guidedby a laryngeal mirror. The positive pole may be held in thehand, or placed on the neck over the course of the recurrentnerve. The tip of the insulated laryngeal electrode is of metal,either unguarded or covered with a little piece of chamoi
Diseases of the nose and throat; a text-book for students and practitioners . ctor paralysis, it is well to use a very weak current,and to place the electrode on the muscle itself, namely, directly THERAPEUTICS OF LARYNGEAL PARALYSES. 365 to the back of the larynx, in the lower part of the can be clone with a negative laryngeal electrode, guidedby a laryngeal mirror. The positive pole may be held in thehand, or placed on the neck over the course of the recurrentnerve. The tip of the insulated laryngeal electrode is of metal,either unguarded or covered with a little piece of chamois-skin;if the former, it should be heated in the hand or dipped intohot water before introducing it into the larynx ; if the latter, itshould first be moistened in warm salt water. As a rule, the application should not be continued longerthan two or three seconds; at least, not until the larynx hasbecome quite tolerant of the contact of the instrument. Bleyer (N. Y. Med, Jour., November 7, 1891) advisesthat electricity be applied to the larynx by means of specially. Fig. 110.—Authors Modification of Mackenzies Laryngeal. Electrode. insulated tubes, made after the pattern of ODwyers, and intro-duced in the same way. The chief advantages claimed are: nocontinual spasm, steady flow of current, ample time for applica-tion, free respiration, easy technique, and no illumination neededduring application. In some cases the external application assists in restoringmuscular tone. One pole should be placed on each side of thelarynx, as nearly as possible over the region of the affectedmuscles, reversing the direction of the current from time totime. Semon recommends the application of the electrodes tothe sides of the head, thus acting upon the phonatory the faradic or galvanic current may be employed, althoughthe former is usually selected. In post-diphtheritic and other paralyses of the superior 366 DISEASES OF THE NOSE AND THROAT. laryngeal nerve, with upright
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