OBJECTIVE: Persons with vestibular schwannoma suffer from dizziness, imbalance, and decreased function leading to reduced quality of life. Other forms of peripheral vestibular hypofunction show improvements in these signs and symptoms with vestibular rehabilitation; however, the efficacy of this intervention for those with vestibular schwannoma is unknown. Therefore, the aim of this systematic review was to determine the effect of vestibular physical therapy on subjective and objective measures of vestibular symptoms and function in people with vestibular schwannoma.
METHODS: Four electronic databases were searched: PubMed, CINAHL, EMBASE, and Cochrane. Included studies were experimental or observational in design and featured patients with vestibular schwannoma who had undergone vestibular physical therapy. Screening and quality assessment was completed independently by 2 researchers. Risk of bias was assessed with a tool appropriate for study design (eg, Cochrane Risk of Bias 2.0 tool for randomized trials). The Grading of Recommendations Assessment, Development and Evaluation approach was used to synthesize findings.
RESULTS: Twenty-three studies were included. Overall, the effect of vestibular physical therapy for patients with vestibular schwannoma was uncertain. Outcomes of dizziness, static and dynamic balance, and vestibular function all showed very low certainty on the Grading of Recommendations Assessment, Development and Evaluation assessment. Multimodal physical therapist interventions consistent with clinical practice guidelines (eg, gaze stability, habituation, balance training, gait training) demonstrated potential for improvement in dizziness, balance, and vestibular function, respectively. Results were mostly insignificant when a single modality was used.
CONCLUSIONS: There may be benefit in multimodal vestibular physical therapy for people with vestibular schwannoma to improve symptoms and function. More high-quality studies specific to vestibular schwannoma prehabilitation and rehabilitation are needed to increase the certainty in the evidence.
CONCLUSIONS: Physical therapists are encouraged to use multimodal vestibular rehabilitation for vestibular schwannoma in clinical practice in line with clinical guidelines for peripheral vestibular hypofunction.

OBJECTIVE: To evaluate the prevalence and factors associated with vestibular dysfunction in people who fall.
METHODS: All electronic records from MEDLINE, CINAHL, Embase and psycINFO databases were searched to 9 December 2022.
METHODS: Participants were adults with at least one fall within the previous year who were exposed to at least one vestibular function test. Any published peer reviewed trial designs were accepted. Included studies were assessed for risk of bias using a modified Epidemiological Appraisal Instrument. The quality of each meta-analysis was assessed using modified Grading of Recommendations Assessment, Development and Evaluation (GRADE).
RESULTS: Ten trials (468 participants) were identified, six of which had high methodological quality. Vestibular dysfunction was found in 61% (48.01-72.32) I2 =  78% of participants. The most prevalent type of dysfunction was from tests of vestibulo-ocular reflex at 61% (49.79 to 70.49) I2 =  68%, followed by benign paroxysmal positional vertigo at 22% (10.30-40.32) I2  =  87% and central dysfunction at 11% (2.24-37.76) I2  =  50%. People who fall with vestibular dysfunction had reduced walking function compared to those without dysfunction -0.51 (-0.85 to -0.16) I2  =  11%. Dizziness was not related to vestibular dysfunction in people who fall 0.25 (-0.10 to 0.60), I2  =  0%. The quality of the body of evidence ranged from very low to high.
CONCLUSIONS: More than one in two people who fall have vestibular dysfunction. Clinicians cannot rely on dizziness report to indicate need for vestibular screening in those who fall. A vestibular screen should be incorporated into a comprehensive falls assessment.

发作性前庭综合征（epsiodic vestibular syndrome，EVS）是指复发性前庭疾病和功能障碍的一组疾病，以发作性头晕、眩晕为主要症状，包括暂时或短暂的前庭功能障碍（如眼震、跌倒发作），伴有耳蜗或中枢神经系统功能障碍，具有反复发作的特点。前庭疾病病因复杂且相互之间容易继发或并发，漏诊误诊率高，而患者诊疗主要依靠病史、临床查体及各类仪器检查，导致就医时间久、医疗负担重。本文对国内外EVS相关问卷的研究进行综述，以便为临床医生规范化诊疗前庭疾病，为EVS的诊断及鉴别诊断提供参考。.

Benign paroxysmal positional vertigo (BPPV) is a debilitating condition that has been significantly described in adults. Recent data points out that BPPV occurs in children as well. Canalith repositioning manoeuvre (CRM) has shown promising results amongst adult patients with BPPV.
We reviewed the literature to determine the outcome of CRM in children and adolescents with BPPV.
A literature search was conducted over 1 month (March 2022). The primary outcome was defined as the resolution of positional nystagmus and symptoms, and secondary outcomes were determined by the presence of recurrence and the number of attempts of CRM.
Ten articles were selected based on our objective and selection criteria. A total of 242 patients were included, with a mean of 10.9 years. BPPV was diagnosed based on history and positional nystagmus in all patients (100%). CRM was performed in 97.9% of patients, whereby 80.5% recovered following a single attempt of CRM. Recurrence of symptoms was identified in 10% of patients with no reported major complications.
CRM has demonstrated promising results in children and adolescents. The quality of evidence is limited until a better-quality study involving randomised controlled studies with a larger sample size is completed.

OBJECTIVE: To describe the main vestibular assessment tests performed in children aged zero to twelve years and the main causes of referral for vestibular assessment.
METHODS: The review was guided by the following question: What are the main vestibular assessment tests performed in children aged zero to twelve years and the main causes of referral for vestibular assessment? The PVO strategy was used, being defined as: Population (P) - newborns and children; study Variable (V) - causes of referral for vestibular assessment; study Outcome (O): the main vestibular assessment tests and the main findings. This study was carried out using the main available databases in the months of July, August and September 2021, with no restrictions regarding language and publication date, namely: PubMed, Web of Science, Scientific Electronic Library Online (SciELO), Latin-American and Caribbean Literature in Health Sciences (LILACS), ScienceDirect, Cochrane Library and Embase. The descriptors were obtained from the MeSH database: newborn, infant, child, children, vestibular screening, vestibular infant screening, vestibular newborn screening, test, vestibular function, vestibular function test.
RESULTS: A total of 7,078 studies were identified. After reading the titles and abstracts, 107 of them were selected, with 101 remaining after the exclusion of duplicates. After the full-text reading, 31 articles were included. It was observed that the most frequently used tests were: rotational tests, caloric stimulation and cervical vestibular evoked myogenic potential and the main causes of referral for vestibular evaluation were hearing loss and vestibular screening.
CONCLUSIONS: The main tests for vestibular screening and/or assessment of children aged zero to twelve years are the rotary chair testing, caloric stimulation and cervical-vestibular evoked myogenic potential. Consequently, performing these procedures is extremely important, since the presence of vestibular dysfunction is quite common in the studied population.

To characterize differences in vestibular testing results among patients presenting with balance-related complaints; to stratify patterns of testing abnormalities by age.
Retrospective chart review.
Academic Balance Center at a Tertiary Referral Center.
All patients who underwent vestibular testing in a 1-year period from 2017 to 2018.
Balance function test results.
We reviewed 1,116 patients with age ranging from 11 to 94 years, including 521 patients ≥60 years. Most patients had at least 1 abnormal result, with only 21% of patients ≥60 years and 43% of patients <60 years yielding no test abnormalities (p < 0.001). Among 754 individuals with abnormal testing results, caloric testing did not show any significant difference between age groups. Patients ≥60 years of age were more likely to demonstrate abnormalities on saccadic and horizontal tracking eye movements (p < 0.01; sacc 20.8% vs 6.3%; HT 9.2% vs 4.7%), as well as positional and Dix-Hallpike testing with videonystagmography (p < 0.001; pos 52.3% vs 37.5%, DH 14.4% vs 6.8%). On computerized dynamic posturography, there were significantly more abnormal composite scores in the older group for both sensory organization and motor control testing (p < 0.001; SOT 31.8% vs 8.8%, MCT 7.6% vs 1.8%).
Among patients presenting balance-related complaints, a majority demonstrate at least one abnormality on vestibular testing. While caloric abnormalities occur across the life span, patients ≥60 years of age are more likely to have abnormal results in random saccades, positional, Dix-Hallpike testing, and posturography, with greater effect sizes in tests of central function. While the causes of imbalance and vertigo remain multifactorial, vestibular dysfunction can be considered a major contributor to balance dysfunction in the elderly population and should be thoroughly evaluated.

Purpose This study aimed to report an unusual case of benign paroxysmal positional vertigo (BPPV), who showed prolonged positional downbeat nystagmus without latency and was diagnosed with cupulolithiasis of the anterior canal (AC). We compared this case with one of typical AC-BPPV, and possible mechanisms underlying the atypical characteristics were discussed. Method Two patients diagnosed with AC-BPPV were reported. Positional testing using video-oculography goggles was performed, and outcomes were measured via medical records and analysis of videos of the nystagmus. Results Downbeat nystagmus was observed in the contralateral Dix-Hallpike test in both cases. The torsional component was subtle or absent, but motion was induced toward the affected ear. The two cases differed in latency and duration of vertigo, as well as habituation. The patient with atypical nystagmus showed little or no latency and longer duration. Moreover, there was no habituation on repeated tests. The nystagmus showed several differences from that of typical AC-BPPV. Conclusions Based on our case, AC-BPPV may induce various unusual clinical manifestations of nystagmus. Accurate diagnosis requires careful consideration of the patient\'s symptoms and the characteristics of the nystagmus. Supplemental Material https://doi.org/10.23641/asha.14265356.

To determine the specificity and sensitivity of the skull vibration-induced nystagmus test (SVINT) for detecting vestibular hypofunction.
The Cochrane Library, MEDLINE, PubMed, EMBASE, and SciELO.
A systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Databases were searched using a comprehensive search strategy including the terms \"Vibration-induced nystagmus\" or \"SVINT\" or \"skull vibration-induced nystagmus test\" or \"skull vibration-induced nystagmus\" from inception to May 2020.
A total of 79 articles were identified, and 16 studies met the inclusion criteria. The methodology for performing the SVINT and determining positivity is varied. Most authors refer to reproducibility, sustained response, ending with withdrawal of stimulus, nondirection changing, and response in more than one point of stimulation, as necessary for a positive test. Only seven studies included a slow phase velocity of 2 degrees/s or 2.5 degrees/s as a criterion. Most studies employed 100 Hz stimulus for 10 seconds, while longer duration is suggested for pediatric patients. For partial and total unilateral vestibular loss, positivity varied from 58 to 60%, and 93 to 100%, respectively. Sensitivity ranged from 50 to 100%, and specificity from 62 to 100%. Importantly, the SVINT may decrease with time but does not usually disappear, hence, can provide information of past/compensated vestibular events.
The SVINT can be used in pediatric and adult patients. It provides information regarding unilateral vestibular loss, acute, or compensated. It is a quick, safe, and noninvasive test, and is complementary to the dynamic vestibular and positional tests.

To describe the impact of vestibular dysfunction on gross motor development in children with hearing loss.
MEDLINE (PubMed), Embase (Elsevier), Web of Science (Clarivate), and the Cumulative Index of Nursing and Allied Health Literature (EBSCO).
A systematic review was reported in concordance with the PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta-analyses). Articles on children with hearing loss who underwent at least 1 instrumented measure of vestibular function and had gross motor milestones assessed were included. The Downs and Black checklist was used to assess risk of bias and methodological quality.
Eleven articles were included in the systematic review. Three articles stratified quantitative results of gross motor milestone acquisition by severity of vestibular impairment. Over half of studies were case series published within the last 5 years. This systematic review showed that children with hearing loss and severe, bilateral vestibular dysfunction demonstrate delayed gross motor milestones. However, it was difficult to draw conclusions on whether milder forms of vestibular dysfunction significantly affect gross motor milestone acquisition in children with hearing loss. The reason is that most studies were of low to moderate quality, used different assessment methods, and contained results that were descriptive in nature.
This emerging area would benefit from future research, such as higher-quality studies to assess vestibular function and gross motor milestones. This would allow for better characterization of the impacts of vestibular impairment, especially milder forms, in children with hearing loss.

BACKGROUND: People with vestibular loss present a deficit in the vestibular system, which is primarily responsible for promoting postural control, gaze stabilization, and spatial orientation while the head moves. There is no effective treatment for a bilateral loss of vestibular function. Recently, a vestibular implant was developed for people with bilateral loss of vestibular function to improve this function and, consequently, the quality of life of these patients.
OBJECTIVE: To identify in the scientific literature evidence that vestibular implants in people with vestibular deficit improves vestibular function.
METHODS: One hundred and forty six articles were found from five databases and 323 articles from the gray literature mentioning the relationship between vestibular implant and vestibular function in humans. The PICOS strategy (Population, Intervention, Comparison and Outcome) was used to define the eligibility criteria. The studies that met the inclusion criteria for this second step were included in a qualitative synthesis, and each type of study was analyzed according to the bias risk assessment of the Joanna Briggs Institute through the critical assessment checklist Joanna Briggs institute for quasi-experimental studies and the Joanna Briggs institute critical assessment checklist for case reports.
RESULTS: Of the 21 articles included in reading the full text, 10 studies were selected for the qualitative analysis in the present systematic review. All ten articles analyzed through the critical assessment checklist Joanna Briggs institute showed a low risk of bias. The total number of samples in the evaluated articles was 18 patients with vestibular implants.
CONCLUSIONS: Taken together, these findings support the feasibility of vestibular implant for restoration of the vestibulo-ocular reflex in a broad frequency range and illustrate new challenges for the development of this technology.