CLINICAL SIGNIFICANCE OF VISUAL FIXATION UPON CALORIC NYSTAGMUS CALORIC PATTERN TEST
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چکیده
منابع مشابه
Monocular electronystagmographic analysis of caloric nystagmus.
We compared the horizontal component of nystagmus of the right and left eyes using monocular recording of electronystagmography. We examined the eye movements of 135 patients during bithermal caloric testing and those of 50 patients during the rotation test. We measured the number of nystagmic beats, the slow-phase velocities, and the amplitudes during 10 seconds of the culmination phase of cal...
متن کاملTHE EFFECT OF ELECTROSTIMULATION ON CALORIC-INDUCED NYSTAGMUS: A PRELIMINARY STUDY
The objective of this study was to describe the role of electrical stimulation in controlling peripheral vertigo. In a prospective study on 13 healthy volunteers, nystagmus was induced with caloric stimulation and the interval of nystagmus disappearance was recorded. This time indicates the basal response of vestibular end-organ. After caloric irrigation, pulsed signal was applied for each...
متن کاملSpatial orientation of caloric nystagmus in semicircular canal-plugged monkeys.
We studied caloric nystagmus before and after plugging all six semicircular canals to determine whether velocity storage contributed to the spatial orientation of caloric nystagmus. Monkeys were stimulated unilaterally with cold ( approximately 20 degrees C) water while upright, supine, prone, right-side down, and left-side down. The decline in the slow phase velocity vector was determined over...
متن کاملThe Effects of Betahistine and Dimenhydrinate on Caloric Test Parameters; Slow-Phase Velocity of Nystagmus
MATERIALS and METHODS: Forty patients with complaints of vertigo and dizziness volunteered to be included in the study. All patients who were included the study were treated at the other medical centers. The patients were divided into two Groups. Patients in the first Group were given betahistine 24 mg three times per day. During this treatment, caloric testing was performed, and the dose was i...
متن کاملThree Dimensional Analysis of Caloric Nystagmus and Effect of Visual Suppression in Cats
Background and Objectives:The caloric test is considered to be one of the most sensitive parameters in the diagnosis of peripheral vestibular disorders, although it can test only the function of the lateral semicircular canals. In this study, the authors measured the eye movements and visual suppression of caloric nystagmus in cats three dimensionally using a magnetic search coil system. Materi...
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ژورنال
عنوان ژورنال: Nippon Jibiinkoka Gakkai Kaiho
سال: 1977
ISSN: 0030-6622,1883-0854
DOI: 10.3950/jibiinkoka.80.507