Acta oto-laryngologica. Supplementum
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Acta Otolaryngol Suppl · Jan 1979
Middle ear pressure following tympanoplasty for various middle ear diseases. Pressure related to follow-up period and retractions.
In 512 ears with various middle ear diseases, the middle ear pressure was measured a minimum of 2 years and a maximum of 10 years after tympanoplasty. The findings were related to the length of the follow-up period and to retractions of the drum and/or in the epitympanum. ⋯ Tubal function had not further deteriorated 4 years after the operation. There was a highly significant correlation between the middle ear pressure and the frequency of retractions, which also does not essentially increase--except in the cholesteatoma cases.
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Acta Otolaryngol Suppl · Jan 1975
Comparative StudySimultaneous application of electronystagmography (ENG) and photoelectronystagmography (PENG) in the case of thermal labyrinth examination.
At examination of normal persons, the ENG registration method was compared with that of PENG. Special examinations were executed with regard to the behaviour of the beat rates during the culmination phase of thermal labyrinth reactions by using each of both registering methods. ⋯ The PENG-method does not exclude an optical fixation due to the necessary interior illumination, and this results in a retarding of the reaction and smaller beat rates. This fact should be considered when comparing the results of ENG and PENG.