Klinik der Innenohrschwerhörigkeiten

Lehnhardt, E

doi:10.1007/978-3-642-88067-4_2

Cited by 20 publications

(17 citation statements)

References 649 publications

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“…In der Regel wird der akute Tinnitus heute als hörsturzäquivalente Innenohrfunktionsstörung gesehen und den entsprechenden Interventionsmöglichkeiten bei "Hörsturz" oder anderen Funktionsstö-rungen des Innenohrs zugeführt [23,24,25,39]. Während in vielen europäischen Ländern und in den USA eine "Nulltherapie" üblich ist, hat sich in Deutschland als Verfahren der ersten Wahl die hä-morheologische Infusionstherapie durchgesetzt (Übersicht bei [26]).…”

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Psychological distress associated with acute tinnitus

D’Amelio

Archonti

Scholz

et al. 2004

HNO

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Patients with acute tinnitus can be differentiated in terms of their distress and the psychological impairment caused by their symptoms. These results suggest that the immediate reaction to the manifestation of tinnitus might be of prognostic value for the level of emotional distress experienced in chronic tinnitus. The question arises of whether psychological intervention in the acute stage of tinnitus might be beneficial.

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Psychological distress associated with acute tinnitus

D’Amelio

Archonti

Scholz

et al. 2004

HNO

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“…The excellent low-distortion impulse transfer also results in a very good imitation of natural sound. In comparison with the bimorphic piezo transducers used by Kodera et al [18] and Dumon et al [9], the frequency range is extended up to 10 kHz, and the maximum equivalent SPL is elevated more than 10 dB in the total frequency range. The results of in vitro tests [20] and the in vivo investigation presented here demonstrate that the examined transducer has characteristics that justify developing the prototype into a component of a partially or fully implantable hearing aid for patients with sensorineural hearing loss.…”

Section: Discussionmentioning

confidence: 97%

“…There are several possibilities for treating sensorineural hearing loss at present, including external hearing aids, bone-anchored hearing aids [25][26][27][28], and partially implantable hearing aids [24]. In carefully selected cases partial or even complete sensorineural hearing loss the inner ear can be replaced completely by a cochlear implant and the hearing nerve stimulated directly [6,14,18]. In patients with hearing loss due primarily to missing outer hair cells the amplifier of a hearing aid must replace the absent cochlear amplification (discernible in positive recruitment and breakdown of transiently evoked otoacoustic emissions).…”

Section: Introductionmentioning

confidence: 99%

In vivo experiments in the cat with an implantable piezoelectric hearing aid transducer

Plinkert

Baumann

Lenarz

et al. 2000

European Archives of Oto-Rhino-Laryngology

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We have recently developed an implantable piezoelectric hearing aid transducer that is suitable for implantation in patients with sensorineural hearing loss. The transducer does not transmit sound but conducts micromechanical vibrations to the cochlea. In ten cat ears we investigated the efficiency of the implantable transducer with respect to the direct transfer of vibrations within the audible frequency range via the ossicles to the cochlea or directly into the vestibule. The acoustically evoked brainstem potential (ABR) threshold was determined prior to implantation, and the middle ear was then opened and the piezoelectric transducer coupled to the ossicles or to the perilymph. Acoustically evoked brainstem potentials were recorded following stimulation at the umbo, long process of the incus, stapes head, stapes foot plate, and in the vestibulum. Comparisons of the acoustically and mechanically evoked thresholds revealed a good correlation of the two stimulation levels. An electrical transducer voltage of 1 V(RMS) produced equivalent sound pressure levels (SPL) of 100-128 dB at the tympanic membrane. To assess the hearing we compared stimulus-dependent latencies of the early potentials (peaks P1-P5) and thresholds. This evaluation was based on four ears with normal hearing in which the piezoelectric transducer was coupled to the long process of the incus. The mean values of the latencies and their scattering range correlated extremely well in the two stimulation modes. They were nearly identical when the equivalent SPL of 100 dB was assigned to the maximally applied electrical level of 0 dB. These in vitro and in vivo findings demonstrate that the characteristics of the transducer warrant its development further from the prototype stage to become a component of an implantable hearing device for patients with sensorineural hearing loss.

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“…Für die akute Tieftonschwerhörigkeit wird in Abhängigkeit vom Nachbeobachtungszeitraum ein Übergang in eine fluktuierende Schwerhö-rigkeit in 25 ± 80 % der Fälle und in 4 ± 10 % der Fälle in eine klassische Menire-Symptomen-Trias beschrieben [1 ± 3]; beide werden deshalb häufig auf einen Endolymphhydrops zurückgeführt. Allerdings ist bei interindividuell sehr unterschiedlicher Krankheitsentwicklung [4] klinisch eine sichere Abgrenzung von einer nicht-hydropischen, degenerativen Erkrankung bisher nicht möglich [5]. Dies gilt ebenso für die kausale Genese des Hydrops.…”

Section: Zusammenfassungunclassified

Elektrophysiologische Diagnostik bei Tieftonschwerhörigkeit: Klinische und prognostische Aspekte

Maier

Aschendorff²,

Arapakis³

et al. 2004

Laryngorhinootologie

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The results indicate that ECochG is of significant prognostic value concerning hearing outcome after conservative therapy in patients suffering from LFHI. It can help the physician to counsel the patient and perform an effective management of the disease. We conclude that ECochG should be performed before the onset of therapy, including collection of SP and CAP data whereas CM parameters may be omitted.

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Klinik der Innenohrschwerhörigkeiten

Cited by 20 publications

References 649 publications

Psychological distress associated with acute tinnitus

Psychological distress associated with acute tinnitus

In vivo experiments in the cat with an implantable piezoelectric hearing aid transducer

Elektrophysiologische Diagnostik bei Tieftonschwerhörigkeit: Klinische und prognostische Aspekte

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