Documentation of the Recovery Course and Deficit Side Localization of an Acute Unilateral Vestibular Deficit Using Four-quadrant Diagrams of Slow Phase Velocity

Allum, J. H. J.; Honegger, F.; Ura, Masaharu

doi:10.3109/00016489109131436

Cited by 6 publications

(3 citation statements)

References 4 publications

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“…On discharge, patients were offered 10 sessions of balance-oriented physical therapy. Apart from comparisons between patient group means over time, group data was compared with that of an equal number of age-matched healthy controls recorded previously ( 6 , 7 , 18 , 25 ). Written informed consent was obtained from the patients to use their data anonymously.…”

Section: Methodsmentioning

confidence: 99%

“…Rotating Chair tests (ROT) were performed according to the previous descriptions ( 25 , 28 ). The ROT was performed with low accelerations of 20 and 5°/s 2 .…”

Section: Methodsmentioning

confidence: 99%

“…A triangular velocity profile was used for the 20°/s 2 acceleration and slow phase eye velocity (SPV) amplitude of the nystagmic eye movements was measured at its peak just after the chair reached a velocity of 120°/s ( 28 ). For the constant 5°/s 2 acceleration over 40 s to a velocity of 200°/s the mean level of SPV between 30 and 40 s of acceleration was used as the VOR measure ( 25 ). Further details of these vHIT and ROT tests are described in Allum and Honegger ( 11 ).…”

Section: Methodsmentioning

confidence: 99%

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The Effect of Age on Improvements in Vestibulo-Ocular Reflexes and Balance Control after Acute Unilateral Peripheral Vestibular Loss

et al. 2016

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BackgroundAn acute unilateral peripheral vestibular loss (aUVL) initially causes severe gaze and balance control problems. However, vestibulo-ocular reflexes (VOR) and balance control are nearly normal 3 months later as a result of peripheral recovery and/or central compensation. As pre-existing vestibular sensory loss is assumed to be greater in the healthy elderly, this study investigated whether improvements in VOR and balance function over time after aUVL are different for the elderly than for the young.MethodsThirty aUVL patients divided into three age-groups were studied (8 age range 23–35, 10 with range 43–58, and 12 with range 60–74 years). To measure VOR function eye movements were recorded during caloric irrigation, rotating chair (ROT), and head impulse tests. Balance control during stance and gait was recorded as lower trunk angular velocity in the pitch and roll planes. Measurements were taken at deficit onset, and 3, 6, and 13 weeks later.ResultsThere was one difference in VOR improvements over time between the age-groups: Low acceleration ROT responses were less at onset in the elderly group. Deficit side VOR responses and asymmetries in each group improved to within ranges of healthy controls at 13 weeks. Trunk sway of the elderly was greater for stance and gait at onset when compared to healthy age-matched controls and the young and greater than that of the young and controls during gait tasks at 13 weeks. The sway of the young was not different from controls at either time point. Balance control for the elderly improved slower than for the young.ConclusionThese results indicate that VOR improvement after an aUVL does not differ with age, except for low accelerations. Recovery rates are different between age-groups for balance control tests. Balance control in the elderly is more abnormal at aUVL onset for stance and gait tasks with the gait abnormalities remaining after 13 weeks. Thus, we conclude that balance control in the elderly is more affected by the UVL than for the young, and the young overcome balance deficits more rapidly. These differences with age should be taken into account when planning rehabilitation.

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Section: Methodsmentioning

confidence: 99%

“…Rotating Chair tests (ROT) were performed according to the previous descriptions ( 25 , 28 ). The ROT was performed with low accelerations of 20 and 5°/s 2 .…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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The Effect of Age on Improvements in Vestibulo-Ocular Reflexes and Balance Control after Acute Unilateral Peripheral Vestibular Loss

et al. 2016

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Verlauf der kalorischen Erregbarkeit nach akuter peripherer vestibulärer Funktionsstörung

Herzog¹,

Allum²,

Probst³

1997

HNO

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This study examined retrospectively the spontaneous recovery of patients with an acute peripheral vestibular deficit in order to determine whether the caloric test response and with it vestibular function improves over time. The caloric bithermal was tested three times on 79 patients who were hospitalised with an acute deficit. The first test was recorded on emergency admission by observing nystagmus beats under the Frenzel glasses. Two to five days later a complete electronystagmus (ENG) examination was performed. A second ENG was performed, on average, 4 months later. 46% of the patients recovered a normal caloric canal paresis value (less than 32%). By comparing the canal paresis values in the first and second ENG an improvement exceeding 30% was demonstrated in 50% of the patients and there was no correlation between the extent of the canal paresis deficit and the amount of recovery. A simultaneous cochlear deficit had no influence on the recovery of vestibular function.

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Recovery of Vestibulo-Ocular Reflex Symmetry After an Acute Unilateral Peripheral Vestibular Deficit

Allum

Cleworth

Honegger

2016

Otology &Amp; Neurotology

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Documentation of the Recovery Course and Deficit Side Localization of an Acute Unilateral Vestibular Deficit Using Four-quadrant Diagrams of Slow Phase Velocity

Cited by 6 publications

References 4 publications

The Effect of Age on Improvements in Vestibulo-Ocular Reflexes and Balance Control after Acute Unilateral Peripheral Vestibular Loss

The Effect of Age on Improvements in Vestibulo-Ocular Reflexes and Balance Control after Acute Unilateral Peripheral Vestibular Loss

Verlauf der kalorischen Erregbarkeit nach akuter peripherer vestibulärer Funktionsstörung

Recovery of Vestibulo-Ocular Reflex Symmetry After an Acute Unilateral Peripheral Vestibular Deficit

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