Maturational Effects of the Vestibular System: A Study of Rotary Chair, Computerized Dynamic Posturography, and Vestibular Evoked Myogenic Potentials with Children

2007 ◽  
Vol 18 (06) ◽  
pp. 461-481 ◽  
Author(s):  
Maureen Valente
Keyword(s):  
Normative Data ◽  
Age Groups ◽  
Preschool Age ◽  
Vestibular Evoked Myogenic Potentials ◽  
Vestibular Evoked Myogenic Potential ◽  
Dynamic Posturography ◽  
Hearing Sensitivity ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Step Velocity

Maturational effects were investigated in two age groups (N = 30 per group) of children with normal hearing sensitivity, using rotary chair (RC), computerized dynamic posturography (CDP), and vestibular evoked myogenic potential (VEMP) measures. Children recruited within the younger group were three through six years of age, and children within the older group were nine through eleven years of age. Data obtained for each pediatric group were compared with clinic and/or published adult normative data for each measure. Significant age effects were seen on many CDP subtests (sensory organization test and motor control test); VEMP latencies; and RC gain, phase, and step velocity measures. The results of this study demonstrate significant maturational effects from preschool age through adulthood and suggest that adult normative data may not be appropriate when interpreting pediatric test results. Since adult techniques should oftentimes not be utilized, a proposed test battery is described that may be efficiently utilized with pediatric patients. Se investigaron los efectos de la maduración en niños con sensibilidad auditiva normal en dos grupos de edad (n = 30 por grupo), utilizando la silla rotatoria (RC), la posturografía dinámica computarizada (CDP) y mediciones de potenciales evocados miogénicos vestibulares (VEMP). Los niños reclutados dentro del grupo más joven tenían de tres a seis años de edad, y los niños en el grupo más viejo tenían de nueve a once años de edad. Los datos obtenidos de cada grupo pediátrico se compararon con datos normativos de adultos, clínicos y/o publicados, para cada una de las mediciones. Se encontraron efectos significativos de la edad en muchas sub-pruebas de la CDP (pruebas de organización sensorial y pruebas de control motor), en las latencias del VEMP, las medidas de ganancia, fase y velocidad de paso de la RC. Los resultados de este estudio demuestran efectos significativos de maduración en niños pre-escolares hasta la edad adulta, y sugiere que los datos normativos de adultos pueden no ser apropiados cuando se interpretan resultados pediátricos. Dado que las técnicas para adultos a menudo no deben ser utilizadas, se describe una batería propuesta de pruebas que puede ser eficientemente usada en pacientes pediátricos.

The development of postural control among children: Repeatability and normative data for computerized dynamic posturography system

2020 ◽  
Vol 78 ◽  
pp. 40-47 ◽  
Author(s):  
Amir Shams ◽  
Roshanak Vameghi ◽  
Parvaneh Shamsipour Dehkordi ◽  
Nahid Allafan ◽  
Mahdi Bayati
Keyword(s):  
Postural Control ◽  
Normative Data ◽  
Dynamic Posturography ◽  
Computerized Dynamic Posturography

Effects of lifetime ethanol consumption on postural control: A computerized dynamic posturography study

2002 ◽  
Vol 12 (1) ◽  
pp. 53-64
Author(s):  
Saad Ahmad ◽  
John W. Rohrbaugh ◽  
Andrey P. Anokhin ◽  
Erik J. Sirevaag ◽  
Joel A. Goebel
Keyword(s):  
Alcohol Consumption ◽  
Postural Control ◽  
Spectral Power ◽  
Support Surface ◽  
Dependent Manner ◽  
Dynamic Posturography ◽  
Eyes Closed ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Eyes Open

The relationship between lifetime alcohol consumption and postural control was investigated in 35 subjects with no clinically-detectable neurologic abnormalities, using computerized dynamic posturography (CDP) procedures. The estimated total number of lifetime alcoholic drinks was positively correlated with anteroposterior sway spectral power within the 2–4 Hz and 4–6 Hz frequency bands, in three Sensory Organization Test (SOT) conditions: eyes closed with stable support surface (SOT 2), eyes open with sway-referenced support (SOT 4), and eyes closed with sway-referenced support (SOT 5). All correlations remained significant after controlling for subject age, and were increased after excluding nine drug-abusing subjects. In contrast to the strong findings for frequency-based measures, no correlation was observed using conventional amplitude-based sway measures. These results suggest that 1) alcohol consumption compromises postural control in an exposure-dependent manner, and 2) sway frequency analysis reveals pathological processes not manifested in conventional CDP measures of sway amplitude.

Dizziness: Relating the Severity of Vertigo to the Degree of Handicap by Measuring Vestibular Impairment

2003 ◽  
Vol 128 (3) ◽  
pp. 372-381 ◽  
Author(s):  
Nicolás Pérez ◽  
Eduardo Martin ◽  
Rafael Garcia-Tapia
Keyword(s):  
Caloric Test ◽  
Pathologic Finding ◽  
Sensory Organization Test ◽  
Dizziness Handicap Inventory ◽  
Test Portion ◽  
Dynamic Posturography ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Prospective Assessment ◽  
Vestibular Pathology

OBJECTIVE: We sought to correlate the severity of vertigo and handicap in patients with vestibular pathology according to measures of impairment. STUDY DESIGN AND SETTING: We conducted a prospective assessment of patients with dizziness by means of caloric, rotatory test, and computerized dynamic posturography to estimate impairment. Handicap and severity of vertigo were determined with specific questionnaires (Dizziness Handicap Inventory and UCLA-DQ). RESULTS: A fair relationship were found between severity of dizziness and vestibular handicap. When impairment was taken into consideration, values were still fair and only moderate for a group of patients with an abnormal caloric test as the only pathologic finding. The composite score from the sensory organization test portion of the computerized dynamic posturography is fairly correlated to severity of vertigo and handicap in the whole population of patients, but no correlation was found when they were assigned to groups of vestibular impairment. CONCLUSION: To assess vestibular impairment, the results from several tests must be taken into account. However, vestibular handicap is not solely explained with measurements of impairment and/or severity.

Posturographic Evidence of Nonorganic Sway Patterns in Normal Subjects, Patients, and Suspected Malingerers

1997 ◽  
Vol 117 (4) ◽  
pp. 293-302 ◽  
Author(s):  
Joel A. Goebel ◽  
Robert T. Sataloff ◽  
Jason M. Hanson ◽  
Lewis M. Nashner ◽  
Debra S. Hirshout ◽  
...  
Keyword(s):  
Normal Subjects ◽  
Relative Strength ◽  
Response Patterns ◽  
Dynamic Posturography ◽  
Balance Disorders ◽  
Balance System ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Standard Calculation ◽  
Routine Assessment

During the last 10 years, computerized dynamic posturography has yielded various patterns of sway on the sensory organization test and the motor control test that have been associated with a variety of organic balance disorders. Some aspects of performance during computerized dynamic posturography, however, are under conscious control. Voluntary movements not indicative of physiologic response to balance system stimulation can also affect computerized dynamic posturography results. Quantification of nonorganic or “aphysiologic” response patterns in normal subjects, patients, and suspected malingerers is crucial to justify use of computerized dynamic posturography for identification of physiologically inconsistent results. For this purpose the computerized dynamic posturography records of 122 normal subjects, 347 patients with known or suspected balance disorders, and 72 subjects instructed to feign a balance disturbance were critically evaluated by use of seven measurement criteria, which were postulated as indicating aphysiologic sway. Each criterion was scored with a standard calculation of the raw data in a random, blinded fashion. The results of this multicenter study show that three of the seven criteria are significantly different in the suspected “malingerer” group when compared with either the normal or patient group. The relative strength of each criterion in discerning organic from nonorganic sway provides the examiner with a measure of reliability during platform posture testing. This study demonstrates that computerized dynamic posturography can accurately identify and document nonorganic sway patterns during routine assessment of posture control.

scholarly journals Reliability and Validity of the Computerized Dynamic Posturography Sensory Organization Test in People with Multiple Sclerosis

2017 ◽  
Vol 19 (3) ◽  
pp. 151-157 ◽  
Author(s):  
Jeffrey R. Hebert ◽  
Mark M. Manago
Keyword(s):  
Multiple Sclerosis ◽  
Scale Score ◽  
Repeated Measures ◽  
Group Versus ◽  
Sensory Organization Test ◽  
Dynamic Posturography ◽  
Sensory Organization ◽  
Computerized Dynamic Posturography ◽  
Disability Group ◽  
Composite Scores

Background: People with multiple sclerosis (MS) frequently have impaired postural control (balance). Psychometric properties of clinical tests of balance for individuals with MS, including the computerized dynamic posturography sensory organization test (CDP-SOT), are poorly understood. This study aimed to determine the reliability and discriminant validity of the CDP-SOT in people with MS. Methods: The CDP-SOT was performed on 30 participants with MS. A 2-week–interval, repeated-measures (sessions 1 and 2) design was implemented to investigate test-retest reliability of the CDP-SOT and the ability of the CDP-SOT to discriminate between participants with lower versus higher disability. Self-reported disability level was based on Patient-Determined Disease Steps (PDDS) scale scores: lower (PDDS scale score, 0–3; n = 17) and higher (PDDS scale score, 4–6; n = 13). Results: All six conditions of the CDP-SOT had good-to-excellent reliability (interclass correlation coefficients, 0.70–0.90) and excellent reliability for composite scores (0.90). Composite scores were significantly greater in the lower-disability group versus the higher-disability group at session 1 (70.89 vs. 48.60, P = .001) and session 2 (74.82 vs. 48.85, P = .002). Conclusions: The CDP-SOT is a reliable measure of balance and accurately differentiates disability status in people with MS. Collectively, the results support clinical application of the CDP-SOT as a reliable and valid measure of disease-related progression of impaired balance related to sensory integration and its utility in determining changes in balance in response to treatment.

Performing and analysing tone-induced cervical and ocular vestibular-evoked myogenic potentials in traumatic and non-traumatic vestibular pathology

2018 ◽  
Vol 132 (10) ◽  
pp. 896-900 ◽  
Author(s):  
A I Mallinson ◽  
N S Longridge
Keyword(s):  
Teaching Hospital ◽  
Normative Data ◽  
Vestibular Evoked Myogenic Potentials ◽  
Neck Injuries ◽  
Tertiary Referral ◽  
Vestibular Evoked Myogenic Potential ◽  
Normative Database ◽  
Myogenic Potential ◽  
Vestibular Assessment ◽  
Vestibular Pathology

AbstractObjectiveThis paper discusses our technique of carrying out cervical and ocular vestibular-evoked myogenic potential testing in a single position. The described technique allows for a symmetrical, natural flexion of the neck muscles, which is helpful as many of our patients have suffered traumatic deceleration injures.MethodsPatients with suspected vestibular pathology referred by specialists were sequentially assessed in a tertiary referral neuro-otology unit within a teaching hospital using our technique and our previously established normative database. All patients underwent standardised vestibular assessment in addition to cervical and ocular vestibular-evoked myogenic potential assessment. Our normative data are in keeping with that reported by other centres.ResultsMany of the patients had abnormal vestibular-evoked myogenic potentials, which is in line with a history suggesting otolithic disease.ConclusionBoth cervical and ocular vestibular-evoked myogenic potentials offer several parameters for detecting abnormalities. The technique reported enables us to assess patients in an accurate fashion whether or not they have suffered traumatic neck injuries.

Pediatric Vestibular Evaluation: Two Children with Sensorineural Hearing Loss

2012 ◽  
Vol 23 (04) ◽  
pp. 283-290 ◽  
Author(s):  
L. Maureen Valente ◽  
Joel A. Goebel ◽  
Belinda Sinks
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Normative Data ◽  
Case Reports ◽  
Clinical Work ◽  
Sensorineural Hearing ◽  
Rapid Recovery ◽  
Vestibular Evoked Myogenic Potentials ◽  
Dynamic Posturography ◽  
Impaired Children

These two cases illustrate several important areas of vestibular evaluation with children. The two case reports represent two children who display very different vestibular findings despite having significant sensorineural hearing loss.These case reports highlight that pediatric findings can differ significantly from adult findings, stressing the importance of comparing pediatric results with pediatric normative data. These two cases also highlight that vestibular techniques may successfully be adapted for use with hearing-impaired children. That is, rotary chair, computerized dynamic posturography, and vestibular evoked myogenic potentials can be adapted to use with children, including those who demonstrate significant sensorineural hearing loss. Although there is a paucity of research and clinical work in this area, some investigators (Eviatar and Eviatar, 1977; Buchman et al, 2004; Jacot et al, 2009) have reported very rapid recovery from pediatric vestibular deficits. However, it is important for audiologists to be aware that techniques may successfully be adapted for children and that many children should undergo thorough vestibular evaluation.

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