A text-book of the diseases of the ear for students and practitioners . alcohol. The soft remnants of intra-tyrnpanic polypi which cannot beseized with the instrument sometimes shrink after the repeated applicationof cotton-wool tampons dipped in powdered alum, or soaked in glycerine andiodine, as they exert a pressure upon the growths. When there is a profusesecretion of pus in the tympanic cavity this procedure is contra-indicatedowing to the danger of pus-retention. (/) Treatment with the Galvano-Cautery.—Cauterizationof the remnants of polypi and small granulations with thegalvano - cauter
A text-book of the diseases of the ear for students and practitioners . alcohol. The soft remnants of intra-tyrnpanic polypi which cannot beseized with the instrument sometimes shrink after the repeated applicationof cotton-wool tampons dipped in powdered alum, or soaked in glycerine andiodine, as they exert a pressure upon the growths. When there is a profusesecretion of pus in the tympanic cavity this procedure is contra-indicatedowing to the danger of pus-retention. (/) Treatment with the Galvano-Cautery.—Cauterizationof the remnants of polypi and small granulations with thegalvano - cautery is indicated when the growths cannot beremoved with the sharp curette or ring-knife. Cauterizationshould be used only when the growths are situated in the externalauditory canal, on the surface of the membrana tympani, andon the promontory wall. Cauterization of the fenestra of thelabyrinth, or of the portions of the tympanic cavity which arenot visible, should be avoided. The great advantages of thegalvano-cautery over the other methods of cauterization are that. Fig. 295.—Points for Galvano-Cautery (Half-size)- the growth is, as a rule, more rapidly and more thoroughlydestroyed, that it scarcely ever produces an inflammatory reactionin the meatus, and that the roots of the growths shrivel up muchmore quickly. Before the application of the galvano-cautery, thegrowth is also anaesthetized by means of powdered cocaine. The number of applications of the galvano-cautery variesaccording to the size and consistency of the growth. Small, softgranulations often disappear after one or two remnants, however, must be repeatedly cauterized beforethey are completely destroyed. The galvano-cautery snare, afterthe use of which cicatricial strictures of the meatus have beenobserved, should be used only in exceptional cases—in otherwords, for fibrous growths or those which cannot be removed byother means. For cauterization with the galvano-cautery, several well-made
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