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Volume 1992, Issue Supplement53
Displaying 1-7 of 7 articles from this issue
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Jin Kanzaki1992 Volume 1992 Issue Supplement53 Pages 1-7
Published: May 20, 1992
Released on J-STAGE: November 27, 2012
JOURNAL FREE ACCESSIt is important to conduct not only vestibular but also audiological examinations in patients complaining of dizziness who develop sudden deafness and Meniere's disease. The differential diagnosis among kinds of sudden deafness involves distinguishing among perilymphatic leak, acoustic neuroma, and Meniere's disease.
We also discuss the incidence of dizziness or vertig o, as well as that of spontaneous nystagmus during ENG, in patients with sudden deafness; the importance of dizziness and of disturbance of balance; the results of the glycerol test in patients with sudden deafness with low-tone hearing loss; and the diagnosis of progressive hearing loss with sense of occlusion.
Tests of hearing loss and tinnitus, in particular the glycerol loading tinnitus test, are useful in the diagnosis of Meniere's disease.
The combined application of the auditory brainstem response test with equilibrium tests, especially the damped pendular rotation test, is useful in the diagnosis of central vestibular disorders.View full abstractDownload PDF (1119K) -
Takashi Matsunaga1992 Volume 1992 Issue Supplement53 Pages 8-24
Published: May 20, 1992
Released on J-STAGE: November 27, 2012
JOURNAL FREE ACCESSThe occurrence of Meniere's disease as is circulatory insufficiency of a vertebrobasilar artery, is associated with mechanical or organic impairments of such vestibular systems as inner ear, vestibular cerebelli, and vestibular nuclei of the brain stem. However, its pathogenesis is also, related to such general impairments as circulatory and autonomic nervous disturbances. Therefore, in making the diagnosis of vertiginous diseases, not only local examination but also general examination are necessary.
Among the items the general examination we perfo r med, serum lipids, agglutination of platelets, Schellong's tests, a blood flow of a vertebral artery by Doppler's method, and a frequency depression curve in electromyography of a leg were found to be closely related to vertiginous diseases.
Although the general examinations might useful in, detecting predispositions or occurrence factors of vertigo, they are not sufficient. The general examinations are mostly performed for pathogenic diagnosis of vertigo, and they are often utilized for evaluating severity of vertigo, the process observation, the selection of a therapeutic method, and for determining the prognosis.View full abstractDownload PDF (2245K) -
Toru Sekitani1992 Volume 1992 Issue Supplement53 Pages 25-32
Published: May 20, 1992
Released on J-STAGE: November 27, 2012
JOURNAL FREE ACCESSThe history of both Meniere's disease and the vestibular neuronitis were briefly reviewed. A list of the diseases which have attacks of dizziness without any symptom of cochlear impairments, i. e., hearing loss and tinnitus or plugged ear sensation, was made.
The diagnostic criteria for vestibular neuronitis and other vestibular d isorders were discussed. The clinical statistics on the vestibular neuronitis which were collected at the ENT Clinic of Yamaguchi University Hospital were explained showing the protocol for the vestibular neuronitis.View full abstractDownload PDF (1171K) -
Michihiko Nozue1992 Volume 1992 Issue Supplement53 Pages 33-40
Published: May 20, 1992
Released on J-STAGE: November 27, 2012
JOURNAL FREE ACCESSThe primary care of patients with vertigo was described. Usually many doctors tend to consider the examinations of patients with vertigo as rather complicated. However, if we take the exact present history of the patients, carry out simple neurotological tests and have proper knowledge of the diseases of vertigo, the primary diagnosis will be done successfully. Then, we can treat the patients appropriately and observe their clinical course. When, more precise examinations are needed, secondary tests such as ENG, ABR, CT and MRI should be done. In some case, we should consult with neurosurgeons, neurologists and psychologists about the diagnosis and treatment of the patients.View full abstractDownload PDF (1138K) -
Tamio Kamei1992 Volume 1992 Issue Supplement53 Pages 41-46
Published: May 20, 1992
Released on J-STAGE: November 27, 2012
JOURNAL FREE ACCESSIn neuro-otological diagnosis, examination of abnormal eye movements is important, especially to obtain an objective basis of vertigo as well as useful suggestions on the localization of lesions. The abnormal eye movements may be classified into five groups such as spontaneous nystagmus, provocation nystagmus, abnormalities of induced labyrinthine nystagmus, abnormalities of visually induced eye movements and ocular oscillations.
Among them, the most fundamental role in clinical diagnosis is played b y spontaneous nystagmus, and also by provocation nystagmus. There are three types of spontaneous nystagmus: spontaneous nystagmus in the narrower sense, gaze nystagmus and fixation nystagmus. The latter two are of non-vestibular origin. On the other hand, spontaneous nystagmus in the narrower sense is the spontaneous vestibular nystagmus which can be seen or recorded with the eyes closed or open, gazing straight ahead in darkness, or with Frenzel's glasses.
Provocation nystagmus is usually classified into positional nystagmus, positioning nystagmus and head-shaking nystagmus. The former two are nystagmus of the vestibular type, provoked by certain head positions other than vertical, and have a different meaning from spontaneous nystagmus in the narrower sense in neuro-otological diagnosis. On the contrary, head-shaking nystagmus is a latent spontaneous vestibular nystagmus, which is provocated in a seated patient by rapid head shaking around the vertical axis.View full abstractDownload PDF (1093K) -
Yutaka Yoshimoto1992 Volume 1992 Issue Supplement53 Pages 47-55
Published: May 20, 1992
Released on J-STAGE: November 27, 2012
JOURNAL FREE ACCESSA study on the diagnosis of acoustic tumor was conducted, with special attention directed toward atypical cases. The following features were found to be associated with atypical cases of acoustic tumor. Patients with atypical subjective symptoms present with early symptoms or chief complaints which are atypical. Patients with atypical clinical signs may present with normal hearing, no abnormal findings in X-ray studies of the internal auditory meatus, normal caloric response on the affected side etc. Patients with atypical course may present with acute or fluctuating course. Some patients have other diseases, such as chronic otitis media and Meniere's disease.View full abstractDownload PDF (5782K) -
Jiro Hozawa1992 Volume 1992 Issue Supplement53 Pages 56-65
Published: May 20, 1992
Released on J-STAGE: November 27, 2012
JOURNAL FREE ACCESSThe labyrinthine pathophysiology during the occurrence of aural vertigo was investigated by clinical observations and animal experiments. As a rule, irritative or paralytic nystagmus can be frequently observed during the vertiginous attack. In order to know the mechanism of nystagmus, a histochemical study of the vestibular sensory cells and autoradiographic study of the vestibular nuclei were performed for the model animals of the Meniere's attack. From the results, it was proved that the excitement of the affected side labyrinth and ipsilateral vestibular nucleus provoked irritative nystagmus. On the other hand, paralytic nystagmus was provoked by the paralysis of the affected side labyrinth and the excitement of the contralateral vestibular nucleus.View full abstractDownload PDF (1937K)
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