Benign paroxysmal positional vertigo, dizziness, and health-related quality of life among older adults in a population-based setting

Associations between benign paroxysmal positional vertigo and seven mental disorders: a two-sample Mendelian randomization study

Background

The association between benign paroxysmal positional vertigo (BPPV) and various mental disorders is still controversial. This study used the Mendelian randomization (MR) method to clarify the correlation between BPPV and seven mental disorders (bipolar disorder, depression, anxiety disorder, schizophrenia, suicidality, neuroticism, and mood swings) to aid in the exploration of BPPV complications and prevention and early treatment of mental disorders.

Methods

The datasets for BPPV and seven mental disorders were obtained from genome-wide association studies (GWASs). Two-sample MR was used to analyze the correlation between exposure (BPPV) and various outcomes (bipolar disorder, depression, anxiety disorder, schizophrenia, suicidality, neuroticism, and mood swings). A reverse MR study was also performed. The inverse variance weighting (IVW) method, the MR-Egger method, the simple mode method, the weighted mode method, and the weighted median method were selected.

Results

The MR analysis and the reverse MR analysis results did not reveal significant associations between BPPV and bipolar disorder, depression, anxiety disorder, schizophrenia, suicidal tendencies, neuroticism, and mood swings. Interestingly, neuroticism (IVW: OR = 1.142, 95% CI: 1.059-1.231, P = 0.001; P-MR-PRESSO adjustment = 0.0002) and mood swings (IVW: OR = 3.119, 95% CI: 1.652-5.884, P = 0.0004) may have a significant association with BPPV. After MR-PRESSO adjustment, there was no horizontal pleiotropy or heterogeneity, and a significant association between neuroticism, mood swings, and BPPV has still been suggested.

Conclusion

We conducted MR analysis on genetic data from European populations and discovered a causal relationship between BPPV and the seven mental disorders. Our research findings suggest that BPPV may not have a significant causal relationship with bipolar disorder, depression, anxiety disorder, schizophrenia, or suicidal tendencies. However, neuroticism and mood swings may be risk factors for BPPV.

Benign paroxysmal positional vertigo without dizziness is common in people presenting to falls clinics

PURPOSE

To determine the prevalence of benign paroxysmal positional vertigo without dizziness, a treatable falls risk factor in people attending outpatient falls clinics.

METHODS

Over 6 years, 618 people at risk of falls attending 2 falls clinics were assessed for benign paroxysmal positional vertigo, whether dizzy or non dizzy. Data regarding demographics, canal location of positive tests and comorbidities were collected from medical records.

RESULTS

Thirty-nine percent (238) of people with falls risk tested positive for benign paroxysmal positional vertigo; 62 (26%) or 1 in 4 of those testing positive were not dizzy. Thirty-nine of 104 (38%) testing positive for single canal benign paroxysmal positional vertigo and twenty-four of 134 (18%) testing positive for multiple canal benign paroxysmal positional vertigo were not dizzy. Comorbidities were common for all with falls risk but did not differentiate for benign paroxysmal positional vertigo on testing.

CONCLUSIONS

Benign paroxysmal positional vertigo is common in people attending falls clinics and contributes to falls risk. Dizziness is common in BPPV though 26% or 1 in 4 people testing positive were not dizzy and would be missed without mandatory testing. Testing should also include all semicircular canals as multiple-canal involvement was high.

Living with dizziness impacts health-related quality of life among older adults

Objective

This study aimed to compare older adults reporting dizziness to those not reporting dizziness regarding health-related quality of life (HRQL), distress due to dizziness, and balance confidence. A secondary aim was to investigate potential association between HRQL, number of falls, balance confidence, and distress due to dizziness.

Methods

Patients coming for bone density measurements answered questions regarding occurrence of dizziness. Patients reporting dizziness on a daily or weekly basis were considered eligible and invited for investigation at the Ear, Nose and Throat clinic at Södra Älvsborg Hospital, Sweden. Patients not reporting dizziness were considered eligible as controls. All patients answered the Dizziness Handicap Inventory (DHI), Activity Balance Confidence Scale (ABC-scale), and Euro-QoL-5D-3L questionnaires.

Results

A total of 55 dizzy patients came for physical investigation and answered the questionnaires and 47 non-dizzy participants only answered the questionnaires. The dizzy participants reported lower levels of balance confidence, lower HRQL, more prior falls, and higher levels of distress due to dizziness than the non-dizzy controls. Lower levels of balance confidence and higher level of distress due to dizziness were each associated with lower HRQL.

Conclusion

Dizziness, unsteadiness, and low balance confidence are associated with HRQL in a negative way. This is important to consider when measuring HRQL in a senior population, since a sensation of unsteadiness may indirectly contribute to low HRQL together with other symptoms.

Level of evidence

2b.

Association of Benign Paroxysmal Positional Vertigo with Depression and Anxiety-A Systematic Review and Meta-Analysis

OBJECTIVE

To evaluate the extent to which Benign Paroxysmal Positional Vertigo (BPPV) is associated with a higher prevalence of depression and anxiety in patients.

DATA SOURCES

Three databases including PubMed, Embase, and The Cochrane Library were searched by two independent authors from inception to June 12, 2022 for observational studies and randomized controlled trials investigating the association between BPPV and depression and anxiety. We included studies published as full-length articles in peer-reviewed journals with an adult population aged at least 18 years who have BPPV, detected through validated clinical methods like clinical diagnosis, interview and Dix-Hallpike test.

RESULTS

A total of 23 articles met the final inclusion criteria and 19 articles were included in the meta-analysis. BPPV was associated with a 3.19 increased risk of anxiety compared to controls, and 27% (17%-39%) of BPPV patients suffered from anxiety. Furthermore, the weighted average Beck's Anxiety Inventory score was 18.38 (12.57; 24.18), while the weighted average State-Trait Anxiety Index score was 43.08 (37.57; 48.60).

CONCLUSION

There appears to be some association between BPPV and anxiety, but further studies are required to confirm these associations. Laryngoscope, 134:526-534, 2024.

Gait and Falls in Benign Paroxysmal Positional Vertigo: A Systematic Review and Meta-analysis

BACKGROUND AND PURPOSE

Benign paroxysmal positional vertigo (BPPV) is one of the most common vestibular disorders, and is treated effectively with particle repositioning maneuvers (PRM). The aim of this study was to assess the influence of BPPV and treatment effects of PRM on gait, falls, and fear of falling.

METHODS

Three databases and the reference lists of included articles were systematically searched for studies comparing gait and/or falls between (1) people with BPPV (pwBPPV) and controls and (2) pre- and posttreatment with PRM. The Joanna Briggs Institute critical appraisal tools were used to assess risk of bias.

RESULTS

Twenty of the 25 included studies were suitable for meta-analysis. Quality assessment resulted in 2 studies with high risk of bias, 13 with moderate risk, and 10 with low risk. PwBPPV walked slower and demonstrated more sway during tandem walking compared with controls. PwBPPV also walked slower during head rotations. After PRM, gait velocity during level walking increased significantly, and gait became safer according to gait assessment scales. Impairments during tandem walking and walking with head rotations did not improve. The number of fallers was significantly higher for pwBPPV than for controls. After treatment, the number of falls, number of pwBPPV who fell, and fear of falling decreased.

DISCUSSION AND CONCLUSIONS

BPPV increases the odds of falls and negatively impacts spatiotemporal parameters of gait. PRM improves falls, fear of falling, and gait during level walking. Additional rehabilitation might be necessary to improve gait while walking with head movements or tandem walking.Video Abstract available for more insights from the authors (see the Supplemental Digital Content Video, available at: http://links.lww.com/JNPT/A421 ).

Guidelines for reasonable and appropriate care in the emergency department 3 (GRACE-3): Acute dizziness and vertigo in the emergency department

This third Guideline for Reasonable and Appropriate Care in the Emergency Department (GRACE-3) from the Society for Academic Emergency Medicine is on the topic adult patients with acute dizziness and vertigo in the emergency department (ED). A multidisciplinary guideline panel applied the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach to assess the certainty of evidence and strength of recommendations regarding five questions for adult ED patients with acute dizziness of less than 2 weeks' duration. The intended population is adults presenting to the ED with acute dizziness or vertigo. The panel derived 15 evidence-based recommendations based on the timing and triggers of the dizziness but recognizes that alternative diagnostic approaches exist, such as the STANDING protocol and nystagmus examination in combination with gait unsteadiness or the presence of vascular risk factors. As an overarching recommendation, (1) emergency clinicians should receive training in bedside physical examination techniques for patients with the acute vestibular syndrome (AVS; HINTS) and the diagnostic and therapeutic maneuvers for benign paroxysmal positional vertigo (BPPV; Dix-Hallpike test and Epley maneuver). To help distinguish central from peripheral causes in patients with the AVS, we recommend: (2) use HINTS (for clinicians trained in its use) in patients with nystagmus, (3) use finger rub to further aid in excluding stroke in patients with nystagmus, (4) use severity of gait unsteadiness in patients without nystagmus, (5) do not use brain computed tomography (CT), (6) do not use routine magnetic resonance imaging (MRI) as a first-line test if a clinician trained in HINTS is available, and (7) use MRI as a confirmatory test in patients with central or equivocal HINTS examinations. In patients with the spontaneous episodic vestibular syndrome: (8) search for symptoms or signs of cerebral ischemia, (9) do not use CT, and (10) use CT angiography or MRI angiography if there is concern for transient ischemic attack. In patients with the triggered (positional) episodic vestibular syndrome, (11) use the Dix-Hallpike test to diagnose posterior canal BPPV (pc-BPPV), (12) do not use CT, and (13) do not use MRI routinely, unless atypical clinical features are present. In patients diagnosed with vestibular neuritis, (14) consider short-term steroids as a treatment option. In patients diagnosed with pc-BPPV, (15) treat with the Epley maneuver. It is clear that as of 2023, when applied in routine practice by emergency clinicians without special training, HINTS testing is inaccurate, partly due to use in the wrong patients and partly due to issues with its interpretation. Most emergency physicians have not received training in use of HINTS. As such, it is not standard of care, either in the legal sense of that term ("what the average physician would do in similar circumstances") or in the common parlance sense ("the standard action typically used by physicians in routine practice").

Epley maneuver for benign paroxysmal positional vertigo: Evidence synthesis for guidelines for reasonable and appropriate care in the emergency department

BACKGROUND

Canalith repositioning maneuvers (such as the Epley maneuver) are recommended by specialty guidelines for management of benign paroxysmal positional vertigo (BPPV) yet are frequently underutilized in the emergency department (ED).

METHODS

We conducted a systematic review of systematic reviews to summarize the evidence of Epley maneuver for the treatment of posterior canal (pc) BPPV in any setting. We included systematic reviews of randomized controlled trials (RCTs) that compared Epley to control in adult patients with pc-BPPV. Titles, abstracts, and full texts were screened in duplicate. The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) assessment was used to rate certainty of evidence. Odds ratios (OR) and 95% confidence intervals (CI) are reported. Meta-analysis of individual studies was conducted with random and fixed effects.

RESULTS

From 2,228 titles, 7 systematic reviews were selected for quality assessment. One review was of higher methodological quality, included only RCTs, and was the most current and comprehensive. Five of the 11 RCTs of the review, including 312 patients with pc-BPPV diagnosed by Dix-Hallpike, were relevant to our question. Meta-analysis of 4 RCTs (251 patients) showed the use of Epley (as compared to control) was associated with higher complete resolution of vertigo at 1 week (OR 7.19, CI 1.52 to 33.98, moderate certainty). Meta-analysis of 3 RCTs (195 patients) showed the use of Epley was associated with higher conversion to negative Dix-Hallpike at 1 week (OR 6.67, CI 1.52 to 33.98, moderate certainty). The number-needed-to-treat was 3. Meta-analysis of the outcomes at 1 month, and when observational studies were included, showed similar results. No serious adverse effects were reported.

CONCLUSIONS

Symptoms of pc-BPPV improve with the Epley maneuver. Emergency clinicians should become familiar with performing the Epley for BPPV. Further studies on ED implementation and clinician education of Epley are needed.

Comparison of RPM (Re-positioning Maneuver) & Liberatory maneuvers vs Betahistine on BPPV (Benign Paroxysmal Positional Vertigo) for improving functional ability and quality of life

BPPV is a vestibular disease which arises due to positional changes of head. Objective: To compare the efficacy of CRP & Liberatory maneuvers collectively in contrast to Betahistine alone for improving quality of life oof BPPV patients. Methods: After getting the approval from ERC of RIHS (Rawal Institute of Health Sciences) Islamabad, this study was conducted at Rawal General & Dental Hospital Islamabad from 20th September 2022 to 19th Jan 2023. 30 patients between age of 20-50 years with first episode of vertigo were included in this study. Two groups were formulated. Group A patients were given CRP (Epley’s maneuver) & Liberatory maneuver (Semont’s) whereas group B patients were given just Betahistine 16mg. Both techniques were used twice a day for one week. Tools used for assessment were DHI & SF-36. SPSS version 21 was employed for analysis. Results: Mean+SD of age was 32.40+10.91 in group A and 29.93+11.67 in group B. The frequency of age between 20-30 years old patients was 07(46.4%) in group A and 11(73.7%) in group B. The frequency in age group 31-40 & 41-50 was 04(26.8%) & 04(26.8%) in group A whereas in group B it was 04(26.3%) & 0(0%) respectively. within group analysis of both groups showed significant improvement (p<0.05) on. Between groups Analysis revealed insignificant difference (p>0.05). Conclusion: Both maneuvers in combination are equally effective as Betahistine is in improving the quality of life of BPPV patients.

Association between otolin-1 and benign paroxysmal positional vertigo: A meta-analysis

Background

There is increasing research on the potential of inner ear proteins as serum biomarkers for the diagnosis and prognosis of various inner ear diseases. Among them, benign paroxysmal positional vertigo (BPPV) is the most common vestibular disease. Notably, otolin-1, an inner ear-specific protein, is detectable in the serum of most patients with BPPV patients. Therefore, we found a need to conduct this meta-analysis to determine the relationship between otolin-1 in serum and BPPV.

Methods

This meta-analysis was conducted by searching PubMed, EMBASE, Cochrane Library, Google Scholar, and China Network Knowledge Infrastructure databases for the eligible original studies in Chinese or English published between January 2010 and February 2022. Data were collected and pooled by using the mean differences (MDs) corresponding to 95% confidence intervals (CIs). Heterogeneity among these studies was assessed by using I² statistics and the adopted fixed or random-effect mode thereafter. Egger's and Begg's tests were also used to assess the publication bias.

Results

This meta-analysis included six articles with a total of 585 participants. Serum otolin-1 levels were remarkably increased in patients with BPPV as compared to that in healthy controls (MD: 165.38, 95% CI: 110.13-220.64, p < 0.00001). However, Egger's and Begg's tests have indicated no publication bias, and the results were reliable based on the sensitivity analysis.

Conclusion

This meta-analysis indicated that there is a higher serum level of otolin-1 in patients with BPPV than in healthy controls. Therefore, otolin-1 may serve as a biomarker for the onset of BPPV.

Dizziness in older persons at high risk of future hospitalization: prevalence, differences between those with and without dizziness, and effect of a proactive primary care intervention

Background

Dizziness is a common reason for seeking care, and frequently affects older persons. The aims were to determine the prevalence of dizziness in older persons at high risk of hospitalization, to compare subjects with and without dizziness, and to examine the effects on dizziness of a proactive primary care intervention in comparison with conventional care after one year.

Methods

Data were derived from a prospective multicentre clinical trial in persons aged 75 and older and at high risk of hospitalization. A baseline questionnaire included demographic data, use of aids, questions about everyday physical activity and exercise, pain (intensity, frequency, and duration), activities of daily living measured using the ADL Staircase, and health-related quality of life measured using the EQ-5D-3L vertical visual analogue scale. Both at baseline and after one year, subjects were asked about dizziness, and those with dizziness answered the Dizziness Handicap Inventory – Screening version. Subjects in the intervention group were evaluated by a primary care team and when needed proactive care plans were established. Groups were compared using the Mann Whitney U-test or chi-squared test.

Results

Of the 779 subjects, 493 (63%) experienced dizziness. Persons with dizziness differed regarding sex, homecare service, aids, activities of daily living, health-related quality of life, physical activity, and pain. The intervention did not significantly reduce the level of dizziness.

Conclusions

Dizziness is common in vulnerable older persons, and individuals with dizziness differ in several respects. Further studies are needed employing more dizziness-specific assessment and individually tailored interventions.

Trial registration

ClinicalTrials.gov 170608, ID: NCT03180606.

High Serum Levels of Otolin-1 in Patients With Benign Paroxysmal Positional Vertigo Predict Recurrence

Background

Otolin-1 is an inner ear-specific protein that is exclusively expressed in otoconia and vestibule and cochlea cells. Recent investigations reported that otolin-1 can cross the blood-labyrinthine barrier and that the levels in serum well-reflected otolith status. Serum otolin-1 levels in patients with benign paroxysmal positional vertigo (BPPV) are significantly elevated compared with healthy controls. We aimed to explore whether otolin-1 can also serve as a biomarker for predicting BPPV recurrence.

Method

Patients at our institution with new-onset of idiopathic BPPV between May, 2017 and May, 2018 were recruited and followed up for 2 years. All demographic data of the patients were collected, and serum levels of otolin-1 and other laboratory indicators were measured and compared according to the recurrence status.

Results

A total of 74 patients, who met the inclusion criteria were enrolled in this study, of which 27 (36.5%) patients had suffered one or more episodes of recurrence after undergoing canal repositioning treatments during the study. The serum levels of otolin-1 in patients with recurrent BPPV were significantly higher than those in patients without recurrent BPPV (363.9 vs. 309.8 pg/ml, p = 0.001). In multivariate analysis comparing the second to fourth quartiles (Q2–Q4) against the first quartile (Q1) of otolin-1, the level of otolin-1 in Q4 could significantly predict BPPV recurrence, and the odds ratio (OR) was elevated by approximately 812% (OR = 9.12; 95% confidence interval [CI]: 1.44–57.9; p = 0.019).

Conclusion

High serum levels of otolin-1 were associated with an increased risk of BPPV recurrence, and further investigation is required to confirm this association and clarify the exact mechanism.

How Healthcare Utilization Due to Dizziness and Vertigo Differs Between Older and Younger Adults

Background

Vertigo and dizziness are common in older adults. We describe self-reported healthcare utilization because of dizziness and vertigo in older adults attending a tertiary care specialized vertigo center.

Methods

Data from 765 patients (45% were ≥60 years old) with chronic dizziness and vertigo who attended a daycare multimodal treatment program were recorded. Data included sociodemographic parameters, dizziness-related characteristics, the Body Sensations Questionnaire (BSQ), the Agoraphobic Cognitions Questionnaire (ACQ), and the Hospital Anxiety and Depression Scale (HADS). Also, healthcare utilization, including (1) physician and clinical services, (2) hospitalizations in the year before consulting the vertigo center, (3) prescription of drugs and other professional services were included. Descriptive statistics, exploratory data analysis, and regression models were used.

Results

Intensity of dizziness was similar in both age groups, however, distress due to dizziness was more severe in younger persons. Dizziness symptoms lasted longer in older adults than in younger persons. Older adults had a somatic diagnosis (74.6 vs. 35.0%) more frequently and reported more falls (37.2 vs. 28.5%) than younger individuals. Anxiety about bodily sensations was higher in younger patients (mean BSQ1 = 9.33 ± 5.6) than in older patients (mean BSQ1 = 6.72 ± 5.4). Older persons had fewer depressive symptoms (mean HADS depression = 5.8 ± 3.6 vs. 6.5 ± 4.1) and less anxiety (mean HADS anxiety = 5.7 ± 3.7 vs. 7.8 ± 4.1) than younger individuals. Younger people were more frequently hospitalized (24.4%) than older adults (16.3%) in the year before consulting the vertigo center. Also, younger patients and patients with non-somatic etiologies had considerably more consultations with healthcare providers than older patients. Older adults received less medication (50.3%), less physiotherapy (41%), and less psychological therapy (11.6%) for vertigo than younger people (59.7, 52.2, 20.4%, respectively).

Conclusion

Age-associated differences in healthcare utilization were defined in selected patients attending a specialized vertigo center. Since dizziness is frequently a heterogeneous disorder requiring interdisciplinary care, its diagnostic and therapeutic work-up must be improved for older patients with dizziness.

Impact of Common Dizziness Associated Symptoms on Dizziness Handicap in Older Adults

Background: A cross-sectional observational study was designed to determine the impact of dizziness associated symptoms on the dizziness handicap inventory (DHI) in older adults (≥60 years).

Methods: In total, 785 individuals referred to a multidisciplinary dizziness unit were assessed. Participants completed self-report questionnaires with general questions about symptoms of dizziness as well as the DHI. The DHI subscores (physical, functional, emotional) were calculated. Medical diagnoses were collected from the medical records of the patients. One-way MANOVA and networking analysis were used to analyze the impact of dizziness associated symptoms on dizziness handicap.

Results: Most patients reported swaying dizziness (60.6%) and feeling of unsteadiness (59.8%) with substantial overlap between the types of dizziness. Most frequent dizziness associated symptoms were ear noise/tinnitus, visual problems, and nausea/vomiting. Network analysis revealed that visual disturbances, headache, and hearing impairment were associated with higher DHI and explained 12% of the DHI variance in the linear regression. In the one-way MANOVA visual problems and headache had an effect on all three DHI subscores, while hearing impairment was associated with the functional and emotional subscores of DHI.

Conclusion: Distinct dizziness associated symptoms have substantial impact on dizziness handicap in older adults. A multifactorial assessment including these symptoms may assist in tailoring therapies to alleviate dizziness handicap in this group.

A Comparison of Falls and Dizziness Handicap by Vestibular Diagnosis

PURPOSE

There is a paucity of data that directly compares the falls rate and dizziness handicap of different vestibular diagnoses. The purpose of this study is to compare the falls rate and dizziness handicap of common vestibular diagnoses encountered among a cohort of vestibular patients at a single institution.

METHOD

We conducted a retrospective cross-sectional study of patients evaluated for dizziness at a tertiary care center vestibular clinic between August 1, 2017, and March 19, 2019. Vestibular diagnosis, demographic variables, comorbidities, falls status, and Dizziness Handicap Inventory (DHI) were extracted from the medical record for analysis. Associations between vestibular diagnosis and falls history or DHI were evaluated using multivariate logistic and linear regression, respectively.

RESULTS

A total of 283 patients met our inclusion criteria with the following diagnoses: benign paroxysmal positional vertigo (BPPV; n = 55), acoustic neuroma (n = 30), Ménière's disease (n = 28), multiple vestibular diagnoses (n = 15), vestibular migraine (n = 135), or vestibular neuritis (n = 20). After adjusting for age, sex, race, medications, and comorbidities, the odds of falling was 2.47 times greater (95% CI [1.08, 6.06], p = .039) and the DHI score was 11.66 points higher (95% CI [4.99, 18.33], p < .001) in those with vestibular migraine compared to those with BPPV. Other diagnoses were comparable to BPPV with respect to odds of falling and dizziness handicap.

CONCLUSIONS

Patients with vestibular migraine may suffer an increased risk of falls and dizziness handicap compared to patients with BPPV. Our findings highlight the need for timely evaluation and treatment of all patients with vestibular disease.

Dizziness and health-related quality of life among older adults in an urban population: a cross-sectional study

Background

Dizziness is a common complaint among older adults and may affect quality of life in a negative way. The aim of this study was to assess health-related quality of life (HRQL), sense of coherence (SOC), self-rated health (SRH) and comorbidity in relation to dizziness, among older persons from an urban population.

Methods

The study is part of the Gothenburg H70 Birth Cohort Studies (H70). A cross-sectional population-based sample including 662 79-years-olds (404 women, 258 men, 62% response rate) were surveyed with questions regarding dizziness, imbalance, comorbidities and general health. HRQL was assessed using the 36-item Short Form-36 Health Survey (SF-36) and SOC with the 13-items questionnaire Sense of Coherence (SOC-13).

Results

Half of the participants reported problems with dizziness (54%). Dizziness was negatively associated with HRQL, including after adjusting for comorbidities, especially in the physical domains of SF-36. Having dizziness was also associated with poorer SRH, tiredness and comorbidity among both men and women. SOC (mean total score), however, did not differ between dizzy and non-dizzy participants.

Conclusions

Dizziness was negatively associated with HRQL, also after adjusting for comorbidities. Identification and treatment of dizziness, when possible, are important because reduction of dizziness symptoms may potentially help to enhance overall well-being in this age group.

Benign paroxysmal positional vertigo and vestibular impairment among older adults with dizziness

OBJECTIVE

This article aimed to investigate older adults visiting a geriatric institution for a bone density measurement who reported dizziness on a daily or weekly basis (but who are not seeking care for dizziness), according to BPPV, vestibular function, walking abilities, and frequency of falls.

METHODS

Patients coming for a bone density measurement answered questions regarding occurrence of dizziness. Patients having dizziness on a daily or weekly basis were considered eligible for the study and invited for investigation at the Ear, Nose, and Throat clinic at Södra Älvsborg Hospital, Sweden. The patients answered questions about history of dizziness, medications, and comorbidities. They were also investigated for BPPV, vestibular deficits using the video head impulse test (vHIT), walking speed, Timed Up and Go test (TUG), and for perception of verticality and horizontality and Romberg test.

RESULTS

A total of 55 patients with dizziness were included. Fifteen (27%) were diagnosed with BPPV. Forty (73%) patients reported falling during the previous year, including 11 with BPPV. Dizziness when turning in bed was more common among patients with BPPV and increased the risk of BPPV 8-fold.

CONCLUSION

BPPV is common among older adults with dizziness, including among those not seeking medical care. It is important to identify older adults with BPPV and treat the condition since BPPV may contribute to falls. Asking about dizziness when turning in bed can help to distinguish patients with increased risk for BPPV and older adults with dizziness should be investigated for BPPV even when typical history is lacking. Level of evidence: 4.

Epley manoeuvre for posterior semicircular canal benign paroxysmal positional vertigo in people with multiple sclerosis: protocol of a randomised controlled trial

INTRODUCTION

Vestibular disorders in multiple sclerosis (MS) could have central or peripheral origin. Although the central aetiology is the most expected in MS, peripheral damage is also significant in this disease. The most prevalent effect of vestibular peripheral damage is benign paroxysmal positional vertigo (BPPV). Impairments of the posterior semicircular canals represent 60%-90% of cases of BPPV. The standard gold treatment for this syndrome is the Epley manoeuvre (EM), the effectiveness of which has been poorly studied in patients with MS. Only one retrospective research study and a case study have reported encouraging results for EM with regard to resolution of posterior semicircular canal BPPV. The aim of this future randomised controlled trial (RCT) is to assess the effectiveness of EM for BPPV in participants with MS compared with a sham manoeuvre.

METHODS AND ANALYSIS

The current protocol describes an RCT with two-arm, parallel-group design. Randomisation, concealed allocation and double-blinding will be conducted to reduce possible bias. Participants and evaluators will be blinded to group allocation. At least 80 participants who meet all eligibility criteria will be recruited. Participants will have the EM or sham manoeuvre performed within the experimental or control group, respectively. The primary outcome of the study is changes in the Dix Hallpike test. The secondary outcome will be changes in self-perceived scales: Dizziness Handicap Inventory and Vestibular Disorders Activities of Daily Living Scale. The sample will be evaluated at baseline, immediately after the intervention and 48 hours postintervention.

ETHICS AND DISSEMINATION

The study was approved by the Andalusian Review Board and Ethics Committee of Virgen Macarena-Virgen del Rocio Hospitals (ID 0107-N-20, 23 July 2020). The results of the research will be disseminated by the investigators to peer-reviewed journals.

TRIAL REGISTRATION NUMBER

NCT04578262.