Normal values for cervical and ocular vestibular-evoked myogenic potentials using EMG scaling: effect of body position and electrode montage

Shahnaz, Navid; David, Eytan A.

doi:10.1080/00016489.2021.1887517

Cited by 18 publications

(29 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[30] Objective determination of unilateral peripheral vestibular de cit required at least one of: (a) unilateral weakness during videonystagmography (VNG), as de ned by a 25% or greater difference between ears using bithermal caloric testing; (b) signi cant cervical or ocular vestibular evoked myogenic potential (VEMP) interaural asymmetry, or absent cervical or ocular VEMP responses in one ear with intact responses in the other ear. [31] We excluded individuals who exhibited uctuating symptoms of an active vestibulopathic cause within the last six months, such as active Menière's Disease (characterized by uctuating hearing loss, tinnitus and vertiginous exacerbations lasting > 20 minutes according to American Academy of Otolaryngology-Head and Neck Surgery criteria [32]); patients with concurrent diagnosis of benign paroxysmal positional vertigo; or patients with clinical and audiometric evidence of a perilymphatic stula, or otosyphilis. We also excluded those with a de cit that precluded providing informed consent or completing the rehabilitation exercises, such as orthopedic or neurological de cits.…”

Section: Participantsmentioning

confidence: 99%

Evidence for Vestibular Sensory Reweighting and Improvement in Dynamic Posturography after Computerized Vestibular Retraining for Stable Unilateral Vestibular Deficit

David

Shahnaz

2022

Preprint

Self Cite

View full text Add to dashboard Cite

Balance deficits increase the risk of falls and compromise quality of life. This single group, interventional study assesses a computerized vestibular retraining protocol in patients with objectively determined unilateral peripheral vestibular deficits. Participants received twelve twice-weekly sessions of vestibular retraining guided by an interactive display. Objective posturography tests and questionnaires were administered before and after retraining. We enrolled 13 participants (5 females and 8 males) with a median age of 51 years (range 18 to 67). After retraining, the median change in sensory organization test (SOT) composite scores was 8.8 (95% CI, 0.6 to 19.1). The SOT visual (median change of 0.12 [-0.09 to 0.30]) and vestibular (0.10 [-0.06 to 0.25]) ratios improved but there was no change in the somatosensory or visual preference ratios. Participants with moderate-to-severe disability at baseline (n=7), as measured by Dizziness Handicap Inventory, had a larger magnitude of improvement (SOT composite 14.6 [7.0 to 36.9]; visual ratio 0.16 [0.09 to 0.39]; vestibular ratio 0.12 [0.08 to 0.28]). We found that computerized vestibular retraining is associated with improvement in dynamic balance performance for individuals with stable unilateral vestibular deficits, consistent with sensory substitution to vestibular organs. Posturography improvements correlated with reduced perceived fall risk. Clinicaltrials.gov registration NCT04875013; 06/05/2021

show abstract

Section: Participantsmentioning

confidence: 99%

Evidence for Vestibular Sensory Reweighting and Improvement in Dynamic Posturography after Computerized Vestibular Retraining for Stable Unilateral Vestibular Deficit

David

Shahnaz

2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…cVEMP response is a biphasic electrophysiological response named p13-n23, based on the occurrence latency of each component [27,28]. Recent study by Shahnaz and David (2021) on cVEMP that performed in supine position with raised and turned head showed normal latency range of 16 ± 1.08 ms for p1 and 24.6 ± 1.98 ms for n1 [29].…”

Section: Cervical Vestibular Evoked Myogenic Potentials (Cvemp)mentioning

confidence: 99%

“…oVEMP response is a biphasic electrophysiological response (n1-p1; n10-p15) [27,34]. Recent study by Shahnaz and David (2021) with a new electrode montage named nasal alar montage found a shorter latency for n1 (12 ± 1.67 ms) and p1 (16 ± 1.72 ms) in comparison with traditional infraorbital montage [29].…”

Section: Ocular Vestibular Evoked Myogenic Potentials (Ovemp)mentioning

confidence: 99%

Hearing and Vestibular Testing in Menière’s Disease

Shaabani¹

2022

Recent Advances in Audiological and Vestibular Research

View full text Add to dashboard Cite

Endolymphatic hydrops (ELH) known as the main pathophysiology of Menière’s disease (MD) changes both the cochlear and vestibular function of the inner ear. These physiological changes can occur simultaneously (cochleovestibular involvement) or separately (cochlear or vestibular involvement). They can also present unilaterally or bilaterally (simultaneously or sequentially). Moreover, ELH recurs periodically without any specific etiology and known rhythm. Therefore, the patient referred for audiological tests may be in attack phase (acute) or inter-attack phase (chronic). MD itself may be in early- or advanced stage. In addition, considering comorbidity (vestibular or non-vestibular) is vital for differential diagnosis. On the other hand, each audiological test (including PTA, ECochG, VNG, vHIT, SVV, VEMPs …) has its specific diagnostic viewpoint and gives us a limited snapshot of MD’s clinical picture. Consequently, in this chapter, we want to discuss these viewpoints and try to explain associations and dissociations of audiological test findings in MD patients.

show abstract

Section: Cervical Vestibular Evoked Myogenic Potentials (Cvemp)mentioning

confidence: 99%

Section: Ocular Vestibular Evoked Myogenic Potentials (Ovemp)mentioning

confidence: 99%

Recent Advances in Audiological and Vestibular Research

2022

View full text Add to dashboard Cite

Pediatric hearing loss is a common sensory deficit, affecting nearly 9% of children worldwide. Compared with pediatric hearing loss, vestibular disorders are still not known among the child population. However, vestibular disorders are more and more generally known with time when the measurement of vestibular function is developing. Genetic causes and virus infection are the main causes of pediatric hearing loss, and vestibular migraine is the most common etiological disease of childhood vertigo. This narrative review of the literature discusses the brief etiopathology, the clinical manifestations of hearing loss and vestibular disorders in children, as well as available test protocols to diagnose childhood hearing loss and vestibular dysfunction.

show abstract

Normal values for cervical and ocular vestibular-evoked myogenic potentials using EMG scaling: effect of body position and electrode montage

Cited by 18 publications

References 19 publications

Evidence for Vestibular Sensory Reweighting and Improvement in Dynamic Posturography after Computerized Vestibular Retraining for Stable Unilateral Vestibular Deficit

Evidence for Vestibular Sensory Reweighting and Improvement in Dynamic Posturography after Computerized Vestibular Retraining for Stable Unilateral Vestibular Deficit

Hearing and Vestibular Testing in Menière’s Disease

Recent Advances in Audiological and Vestibular Research

Contact Info

Product

Resources

About