The nystagmus and the therapeutic effects on early-diagnosed cases of sudden deafness

Kanzaki, Jin; Takahashi, Masahiro

doi:10.1007/bf00665542

Cited by 7 publications

(1 citation statement)

References 13 publications

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“…Es wurde in Anlehnung an die Jongkees-Formel [5,17] ein Canal-paresis (CP)-Wert berechnet: vergleichbar mit der Erholung nach einem Hörsturz [9,24,25]. Beim Hörsturz ist die Prognose bezüglich Gehör schlechter, wenn gleichzeitig vestibulä-re Symptome vorhanden sind [9,18,29,36], was umgekehrt gemäß unseren Daten nicht der Fall war. Die kalorische Antwort und somit die vestibuläre Funktion erholt sich unabhängig von einer zusätzlichen kochleären Mitbeteiligung.…”

Section: Ergebnisseunclassified

Verlauf der kalorischen Erregbarkeit nach akuter peripherer vestibulärer Funktionsstörung

Herzog¹,

Allum²,

Probst³

1997

HNO

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This study examined retrospectively the spontaneous recovery of patients with an acute peripheral vestibular deficit in order to determine whether the caloric test response and with it vestibular function improves over time. The caloric bithermal was tested three times on 79 patients who were hospitalised with an acute deficit. The first test was recorded on emergency admission by observing nystagmus beats under the Frenzel glasses. Two to five days later a complete electronystagmus (ENG) examination was performed. A second ENG was performed, on average, 4 months later. 46% of the patients recovered a normal caloric canal paresis value (less than 32%). By comparing the canal paresis values in the first and second ENG an improvement exceeding 30% was demonstrated in 50% of the patients and there was no correlation between the extent of the canal paresis deficit and the amount of recovery. A simultaneous cochlear deficit had no influence on the recovery of vestibular function.

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Section: Ergebnisseunclassified

Verlauf der kalorischen Erregbarkeit nach akuter peripherer vestibulärer Funktionsstörung

Herzog¹,

Allum²,

Probst³

1997

HNO

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The progression of hearing loss in the early stages of sudden deafness

Kanzaki

O‐Uchi

1983

Arch Otorhinolaryngol

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The pathogenesis of sudden deafness is still not known. Therefore, to clarify its pathophysiology, it is important to know whether the progression of hearing loss occurs in the early stage of sudden deafness. The subjects were 11 patients with sudden deafness showing the progression of hearing loss by pure tone audiometry after the onset of the initial attack of hearing loss. The progression of hearing loss was mostly observed within 4-7 days after the onset of the initial attack. Average hearing loss in initial audiometry was severe and the recovery was poor in the majority of cases. An exploratory tympanotomy was performed in five cases and revealed one case of perilymphatic leak from the round window and another case of suspected round-window membrane rupture. As far as the causes of the progression of hearing loss in the early stage of sudden deafness are concerned, the following could be considered (1) aggravation of viral labyrinthitis, (2) aggravation of the vascular lesion of the inner ear, and (3) rupture of the membranous labyrinth of window(s).

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Electronystagmography findings in child unilateral sensorineural hearing loss of probable viral origin

Melagrana

Tarantino

D’Agostino

et al. 1998

International Journal of Pediatric Otorhinolaryngology

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The nystagmus and the therapeutic effects on early-diagnosed cases of sudden deafness

Cited by 7 publications

References 13 publications

Verlauf der kalorischen Erregbarkeit nach akuter peripherer vestibulärer Funktionsstörung

Verlauf der kalorischen Erregbarkeit nach akuter peripherer vestibulärer Funktionsstörung

The progression of hearing loss in the early stages of sudden deafness

Electronystagmography findings in child unilateral sensorineural hearing loss of probable viral origin

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