摘要 :
Ocular vestibular-evoked myogenic potentials (OVEMPs) in our hands provide us with reproducible and consistent results; however, it has been shown that the OVEMP amplitude decreases with increased stimulus duration. The exact numb...
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Ocular vestibular-evoked myogenic potentials (OVEMPs) in our hands provide us with reproducible and consistent results; however, it has been shown that the OVEMP amplitude decreases with increased stimulus duration. The exact number of stimuli for OVEMP recording is not consistent among the published papers describing this test. We aimed to determine the number of stimuli needed to produce a satisfactory OVEMP response and the consequences of a more prolonged stimulation to the OVEMP response. We retrospectively analyzed 50 OVEMP patient recordings and found that the average number of sweeps carried out was 26. We carried out three different OVEMP recordings using our standard protocol of (1) a "standard" OVEMP protocol, in which we record until the OVEMP wave becomes obvious; (2) an OVEMP recording using our average of 26 sweeps; and (3) an OVEMP recording with twice as many sweeps. OVEMP latencies did not change when using different number of sweeps; however, the amplitudes showed a significant decrease with an increasing number of sweeps. OVEMPs can be completed in a satisfactory manner with a much lower number of stimuli than those usually carried out. Reducing the stimulus number reduces the time taken for the test, minimizes the cochlear insult while not reducing the valuable information obtained, and maximizes the amplitude of the stimulus, possibly increasing the accuracy of measuring interaural amplitudes and helping to measure asymmetry.
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Migraine associated vertigo" is emerging as a popular diagnosis for patients with recurrent vertigo. However, in view of our current understanding of both migraine and vertigo, "migraine associated vertigo," in contrast to basilar...
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Migraine associated vertigo" is emerging as a popular diagnosis for patients with recurrent vertigo. However, in view of our current understanding of both migraine and vertigo, "migraine associated vertigo," in contrast to basilar artery migraine, is neither clinically nor biologically plausible as a migraine variant. Migraine associated vertigo, "benign recurrent vertigo," "vertiginous migraine," "vestibular migraine," "migrainous vertigo," and "migraine related vestibulopathy" are terms commonly used to define essentially the same condition, although some authors prefer certain terms to differentiate whether the vertigo and the headache need to occur simultaneously. The first descriptions of "dizziness" and "headache" together as a single entity date back to ad 100 and originate from Aretaeus of Cappadocia. Contemporary descriptions in the modern medical literature date back to the 19th Century.
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摘要 :
Migraine associated vertigo" is emerging as a popular diagnosis for patients with recurrent vertigo. However, in view of our current understanding of both migraine and vertigo, "migraine associated vertigo," in contrast to basilar...
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Migraine associated vertigo" is emerging as a popular diagnosis for patients with recurrent vertigo. However, in view of our current understanding of both migraine and vertigo, "migraine associated vertigo," in contrast to basilar artery migraine, is neither clinically nor biologically plausible as a migraine variant. Migraine associated vertigo, "benign recurrent vertigo," "vertiginous migraine," "vestibular migraine," "migrainous vertigo," and "migraine related vestibulopathy" are terms commonly used to define essentially the same condition, although some authors prefer certain terms to differentiate whether the vertigo and the headache need to occur simultaneously. The first descriptions of "dizziness" and "headache" together as a single entity date back to ad 100 and originate from Aretaeus of Cappadocia. Contemporary descriptions in the modern medical literature date back to the 19th Century.
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The executive committee of the European Society for the clinical evaluation of balance disorders meets annually to address equilibrium problems that are not well understood. This is a review paper on discussions in the latest meet...
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The executive committee of the European Society for the clinical evaluation of balance disorders meets annually to address equilibrium problems that are not well understood. This is a review paper on discussions in the latest meeting we held. Seeing patients with vestibular disorders who end up depending on visual information as part of their compensation process is a common clinical occurrence. However, this "visual dependence" can generate symptoms, which include nausea, sensations of imbalance, and anxiety. It is unclear how this develops, as symptoms can be widely variable from patient to patient. There are several triggering factors to this symptom set, and quantifying it in a given patient is extremely difficult Results: The committee agreed that the presence of this symptom set can be suggestive of vestibular pathology, but the pathology does not have to be present. As a result, there is no correlation between symptom severity and test results. Visual dependence can often be present in a patient, although little, if any, measurable pathology is present. It is important to emphasize that although we cannot accurately measure this with either standardized testing or pertinent questionnaires, "hypersensitive" patients have a genuine disease and their symptoms are not of psychiatric origin.
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