PO15.15 Effect of Galvanic Stimulation on Spontaneous Nystagmus in Ménière's Disease and Vestibular Neuritis

2009 ◽  
Vol 120 ◽  
pp. S93
Author(s):  
Seong-Hae Jeong ◽  
Gun-Sei Oh ◽  
Ji Soo Kim
2019 ◽  
Vol 128 (9) ◽  
pp. 869-878 ◽  
Author(s):  
Richard T. Zhu ◽  
Vincent Van Rompaey ◽  
Bryan K. Ward ◽  
Raymond Van de Berg ◽  
Paul Van de Heyning ◽  
...  

Background:According to population-based studies that estimate disease prevalence, the majority of patients evaluated at dizziness clinics receive a single vestibular diagnosis. However, accumulating literature supports the notion that different vestibular disorders are interrelated and often underdiagnosed.Objective:Given the complexity and richness of these interrelations, we propose that a more inclusive conceptual framework to vestibular diagnostics that explicitly acknowledges this web of association will better inform vestibular differential diagnosis.Methods:A narrative review was performed using PubMed database. Articles were included if they defined a cohort of patients, who were given specific vestibular diagnosis. The interrelations among vestibular disorders were analyzed and placed within a conceptual framework.Results:The frequency of patients currently receiving multiple vestibular diagnoses in dizziness clinic is approximately 3.7% (1263/33 968 patients). The most common vestibular diagnoses encountered in the dizziness clinic include benign paroxysmal positional vertigo (BPPV), vestibular migraine, vestibular neuritis, and Ménière’s disease.Conclusions:A review of the literature demonstrates an intricate web of interconnections among different vestibular disorders such as BPPV, vestibular migraine, Ménière’s disease, vestibular neuritis, bilateral vestibulopathy, superior canal dehiscence syndrome, persistent postural perceptual dizziness, anxiety, head trauma, and aging, among others.


Author(s):  
Elaheh Mosharaf Dehkordi ◽  
Moslem Shaabani ◽  
Ali Kouhi ◽  
Mohsen Vahedi

Background and Aim: Meniere's disease (MD) is one of the inner ear disorders associated with fluctuating hearing loss, vertigo, ear fullness, and tinnitus. Vestibular stimulation delas with the int­egrity of the peripheral vestibular system and may cause nystagmus due to the functional asy­mmetry between right and lef peripheral vesti­bular system. This study aimed to assess the vibration-induced nystagmus (VIN) in patients with chronic unilateral MD and investigate the effectiveness of this test in detecting the affected ear in these patients. Methods: This study was conducted on 29 pati­ents with chronic unilateral MD. For this pur­pose, spontaneous nystagmus (SN) and VIN at frequencies of 30 Hz and 100 Hz were recorded by videonystagmography test under five recor­ding conditions. The vibratory stimulation was presented to both healthy and affected ears. Coll­ected were analyzed in SPSS v.22 software. Results: Vibratory stimulation compared to the unstimulated condition, revealed a significant difference in eye movements for both healthy and affected ears. Moreover, the difference between VIN and SN in the affected ear was much greater than in the healthy ear. Conclusion: In patients with chronic unilateral MD, 100 Hz vibratory stimulation of the affected ear induces more reliable nystagmus than 30 Hz stimulation and unstimulated condition. The VIN test can be used for the evaluation of the vesti­bular system function and is a promising techni­que to detect the MD ear. Keywords: Meniere's disease; spontaneous nystagmus; vibration-induced nystagmus; chronic; definite; vestibular vibrator


2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Marta Martinez-Lopez ◽  
Raquel Manrique-Huarte ◽  
Nicolas Perez-Fernandez

The aim of this paper is to present for the first time the functional evaluation of each of the vestibular receptors in the six semicircular canals in a patient diagnosed with Meniere’s disease during an acute attack. A 54-year-old lady was diagnosed with left Meniere’s disease who during her regular clinic review suffers an acute attack of vertigo, with fullness and an increase of tinnitus in her left ear. Spontaneous nystagmus and the results in the video head-impulse test (vHIT) are shown before, during, and after the attack. Nystagmus was initially left beating and a few minutes later an upbeat component was added. No skew deviation was observed. A decrease in the gain of the vestibuloocular reflex (VOR) and the presence of overt saccades were observed when the stimuli were in the plane of the left superior semicircular canal. At the end of the crisis nystagmus decreased and vestibuloocular reflex returned to almost normal. A review of the different possibilities to explain these findings points to a hypothetical utricular damage.


2000 ◽  
Vol 2000 (Supplement104) ◽  
pp. 70-74
Author(s):  
Meiho Nakayama ◽  
Men-dar Wu ◽  
Shigeru Inafuku ◽  
Hiromichi Ishigami

2005 ◽  
Vol 133 (6) ◽  
pp. 929-935 ◽  
Author(s):  
Augusto Casani ◽  
Daniele Nuti ◽  
Stefano Sellari Franceschini ◽  
Elisa Gaudini ◽  
Iacopo Dallan

OBJECTIVE: To determine the effects of transtympanic injections, with a mixture composed of gentamicin and fibrin tissue adhesive (FTA), on vestibular function of patients with intractable unilateral Menière's disease. STUDY DESIGN: This was an open, prospective study. SETTING AND PATIENTS: The study was performed at 2 tertiary referral centers. Twenty-six patients affected by “definite” unilateral Menière's disease, unresponsive to medical therapy for at least 6 months, were enrolled. INTERVENTION: A buffered gentamicin solution mixed with FTA was injected in the middle ear until the development of bedside vestibular hypofunction signs and/or caloric weakness in the treated ear. MAIN OUTCOME MEASURE: Vestibular function was evaluated by 3 bedside vestibular tests (observation of spontaneous nystagmus, head shaking test, and head thrust test) and by a caloric test. Tests were performed on days 10 and 30 after completion of treatment. Tests were also performed 3, 6, and 12 months from completion of the gentamicin-FTA protocol. The effects of treatment were also assessed in terms of hearing levels, control of vertigo, and disability status. RESULTS: In 22 of the 26 patients, only 1 gentamicin-FTA injection was necessary to obtain 1 or more signs indicating a reduction of the vestibular function in the treated ear. Four patients needed another treatment because of the persistence of their incapacitating symptoms during the follow-up. Four patients needed more than 1 injection to obtain a vestibular hypofunction. None of the patients who received 1 or 2 injections presented hearing loss in direct temporal relationship to the treatment. CONCLUSIONS: A mixture of gentamicin and fibrin glue makes it possible to considerably reduce the number of administrations in patients with intractable unilateral Menière's disease. Spontaneous nystagmus, post head shaking nystagmus, and a head thrust sign are the clinical signs that indicate onset or progression of unilateral vestibular hypofunction. These signs were obtained with only 1 injection in 81% of patients. EBM RATING: C


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