A text-book of the diseases of the ear for students and practitioners . rrested by the re-peated introduction of small cotton-wool ?FlG- 138-tampons. Sometimes we find that the bloodflows into the tympanic cavity, and an improvement in thehearing is noticed only after the coagulum has been very rarely happens that the chorda tympani is cut by theinstrument penetrating too deeply; when this is the case, how-ever, the patient experiences a temporary loss of taste on thatside of the tongue corresponding to the injured nerve. Results of the Operation.—The success of the operationdepend
A text-book of the diseases of the ear for students and practitioners . rrested by the re-peated introduction of small cotton-wool ?FlG- 138-tampons. Sometimes we find that the bloodflows into the tympanic cavity, and an improvement in thehearing is noticed only after the coagulum has been very rarely happens that the chorda tympani is cut by theinstrument penetrating too deeply; when this is the case, how-ever, the patient experiences a temporary loss of taste on thatside of the tongue corresponding to the injured nerve. Results of the Operation.—The success of the operationdepends principally on the simultaneous changes in the middleear. The most striking effect of this operation is its power ofdiminishing the intensity of the subjective noises. The improve-ment in hearing, which sometimes amounts to 4 or 5 mm. forloud speech, will be more marked if the power of vibration ofthe ossicular chain is only slightly reduced by products of * Ueber Trommelfellnarben Wiener med. WocJienschrift, Langenbecks Arch. f. Chirurgie, vol. xiii. 20. 306 DISEASES OF THE EAR disease. Where, on the other hand, firm adhesions between theossicles and the walls of the tympanic cavity are found, it will benoticed that there will be no improvement in the hearing afterthe operation, or only one of a very slight degree. We can judge the duration of improvement attained bythis procedure only if we are in a position to observe ourpatients for a period of several years. From those casesoperated upon by the author, he learned that afterseveral months the hearing distance gradually returnedto its former limit, and also that the subjective noisesassumed their former intensity; this often applied evento those cases in which a striking increase in the hearingand a diminution in the subjective noises were noticedimmediately after the operation. In other cases, thehearing distance again decreases, while the subjectivenoises do not regain their former intensity. The authorwas able
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