Distortion product otoacoustic emissions in sheep before and after hyperinsulinemia induction
نویسندگان
چکیده
منابع مشابه
Distortion product otoacoustic emissions in sheep before and after hyperinsulinemia induction.
UNLABELLED Transient evoked otoacoustic emissions and distortion product otoacoustic emissions have gained significant importance in the identification of cochlear alterations. AIM To record distortion product thresholds through the monitoring of otoacoustic emissions in normal conditions and in the presence of electrophysiologic changes in cochlear outer hair cells in sheep after hyperinsuli...
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Tinnitus is a symptom that affects a great number of patients. Its diagnosis, treatment, and follow-up are difficult, owing to its subjectivity. The authors propose the use of distortion product otoacoustic emissions (DPOAEs) in tinnitus evaluation. They studied three groups: controls, having no complaint of tinnitus and normal hearing; group 1, presenting tinnitus and normal audiometry; and gr...
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متن کاملDistortion product otoacoustic emissions in an animal model of induced hyperinsulinemia.
The existence of a relationship between abnormal insulin levels and the occurrence of labyrinth disorders has been demonstrated in several works. Among many metabolic alterations, such studies indicate that hyperinsulinemia is one of the most frequent causes of cochlear and vestibular syndromes. In this study, we monitored distortion product evoked otoacoustic emission thresholds during induced...
متن کاملDissociation between distortion-product and click-evoked otoacoustic emissions in sheep (Ovis aries).
Distortion-product otoacoustic emissions (DPOAEs) were weak or absent in about one-third of sheep (Ovis aries) of both sexes tested for otoacoustic emissions (OAEs) even though their click-evoked OAEs (CEOAEs) seemingly were typical of other sheep of the same sex. Various pieces of evidence suggest that the absence of measurable DPOAEs was unlikely to be attributable to anesthetic effects, a po...
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ژورنال
عنوان ژورنال: Brazilian Journal of Otorhinolaryngology
سال: 2008
ISSN: 1808-8694
DOI: 10.1016/s1808-8694(15)31086-7