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Clinical Characteristics and Risk Factors for the Recurrence of Benign Paroxysmal Positional Vertigo.

ABSTRACT: Benign paroxysmal positional vertigo (BPPV) manifests itself as a paroxysm of vertigo and nystagmus lasting several seconds, which is self-limiting. The clinical characteristics and risk factors for the recurrence of BPPV in different ages have not yet been investigated. Materials and Methods: A retrospective observational study was conducted in the Department of Neurology in Beijing Tiantan Hospital from July 2009 to June 2015. The study included 1,012 patients aged 18-93 years. All patients received the definitive diagnosis and canalith repositioning maneuvers treatment and finally accomplished follow-up. Demographic variables, potential recurrence risk factors, neurological examination, and laboratory indexes were assessed. Data Analyses: The t-test or chi-squared test was first performed for group comparison, then logistic regression analysis was used to investigate the risk factors of BPPV recurrence. Results: The 1-year recurrence rates of BPPV patients after reposition maneuvers were, respectively, 22.79% (aged 18-45 years), 23.92% (aged 45-60 years), 28.89% (over 60 years). The recurrence rates among the three groups have no statistically significant difference. Logistic regression analysis shows that women BPPV patients have more recurrence risks than do men. Ménière's disease (odds ratio = 6.009, 95% confidence interval: 2.489-14.507, p < 0.001), hypertension (odds ratio = 1.510, 95% confidence interval: 1.095-2.084, p = 0.012), migraine (odds ratio = 2.534, 95% confidence interval: 1.164-5.516, p = 0.019), and hyperlipemia (odds ratio = 1.419, 95% confidence interval: 1.024-1.968, p = 0.036) were risk factors for the recurrence of BPPV in patients. Conclusion: We conclude that Ménière's disease, hypertension, migraine, and hyperlipemia may be independent risk factors for the recurrence of BPPV in patients, but aging does not increase the recurrence risk.

SUBMITTER: Zhu CT

PROVIDER: S-EPMC6863975 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:Background and Purpose: The lifetime prevalence of benign paroxysmal positional vertigo (BPPV) is high, especially in the elderly. Patients with BPPV are more susceptible to ischemic stroke, dementia, and fractures, severely reducing quality of life of patients. Many studies have analyzed risk factors for the occurrence of BPPV. However, the results of these studies are not identical. We performed this meta-analysis to determine potential risk factors associated with the occurrence of BPPV. Methods: PubMed, EMBASE, and the Cochrane Library (January 2000 through March 2020) were systematically searched for eligible studies analyzing risk factors for the occurrence of BPPV. Reference lists of eligible studies were also reviewed. We selected observational studies in English with a control group and sufficient data. Pooled odds ratios (ORs) or the mean differences (MDs) and 95% confidence intervals (CIs) were calculated to measure the impacts of all potential risk factors. Heterogeneity among studies was evaluated using the Q-test and I 2 statistics. We used the random-effect model or the fixed-effect model according to the heterogeneity among the included studies. Results: We eventually included 19 studies published between 2006 and 2019, including 2,618 patients with BPPV and 11,668 participants without BPPV in total. In this meta-analysis, the occurrence of BPPV was significantly associated with female gender (OR = 1.18; 95% CI, 1.05-1.32; P = 0.004), serum vitamin D level (MD = -2.12; 95% CI, -3.85 to -0.38; P = 0.02), osteoporosis (OR = 2.49; 95% CI, 1.39-4.46; P = 0.002), migraine (OR = 4.40; 95% CI, 2.67-7.25; P < 0.00001), head trauma (OR = 3.42; 95% CI, 1.21-9.70; P = 0.02), and total cholesterol level (MD = 0.32; 95% CI, 0.02-0.62; P = 0.03). Conclusion: Female gender, vitamin D deficiency, osteoporosis, migraine, head trauma, and high TC level were risk factors for the occurrence of BPPV. However, the effects of other risk factors on BPPV occurrence need further investigations.

Project description:ImportanceBenign paroxysmal positional vertigo (BPPV) is the most common cause of vertigo with frequent recurrences.ObjectiveTo determine the efficacy of a web-based diagnosis and treatment of BPPV when it recurs in patients with confirmed and treated BPPV.Design, setting, and participantsThis randomized, controlled, parallel-group, double-blind trial took place in multiple referral-based university hospitals in South Korea between July 2017 and February 2020. Of 728 patients (age ≥20 years) with diagnosed and treated BPPV, 585 were enrolled after excluding 143 who declined participation, could not use the internet, or had spinal problems, multicanal BPPV, or cognitive dysfunction. Patients were followed up for recurrence at least for 2 years until February 2022.InterventionsPatients were randomly assigned (1:1) to the treatment or control group. The patients in the treatment group completed a questionnaire for diagnosis and received a video clip for self-administration of canalith repositioning maneuver (CRM) according to the type of BPPV diagnosed when they experienced positional vertigo again. Patients in the control group received a video clip for self-administration of CRM according to the type of BPPV that had been diagnosed on enrollment.Main outcomes and measuresThe primary outcome was self-reported resolution of positional vertigo post-CRM. Secondary outcomes included difficulties and requirement for assistance when using the program and any falls or other adverse events related to CRM. The primary outcome was analyzed using both intention-to-treat and per-protocol methods.ResultsOf 585 patients enrolled, 292 were randomized to the treatment group (mean [SD] age, 60.3 [12.8] years, 37 [64%] women) and 293 were randomized to the control group (mean [SD] age, 61.1 [13.2] years; 50 [71%] women). Overall, 128 (21.9%) had recurrence (58 in the treatment group and 70 in the control group), and 109 (85.2%) successfully used the web-based system. In the intention-to-treat analysis, 42 of 58 individuals (72.4%) in the treatment group and 30 of 70 individuals (42.9%) in the control group reported vertigo resolution (χ2 test: 95% CI, 0.13-0.46; P < .001).Conclusions and relevanceThis trial proved the efficacy of a web-based system for the diagnosis and treatment of recurrent BPPV. Use of this system may play an important role in telemedicine for vestibular disorders.Trial registrationClinical Research Information Service Identifier: KCT0002364.

Project description:BackgroundBenign paroxysmal positional vertigo is the most common disease in which vertigo is the main clinical manifestation, and it has become a global medical problem, affecting a wide range of areas and seriously affecting the quality of human life.ObjectiveThis article presents an analysis of the current characteristics of BPPV-related research and summarizes the current hot topics and trends, with the goal of inspiring future research into the prevention and treatment of BPPV, thereby improving the differential diagnosis and prevention of peripheral vertigo.MethodsA bibliometric approach was used to collect 1,219 eligible studies on BPPV from four databases-PubMed, Embase, Scopus, and Web of Science-published between 1974 and 2022. The characteristics and status of the accumulated scientific output were processed using R and VOSviewer so that we could visualize any trends or hotspots.ResultsThe results showed a significant increase in the annual number of publications, with an average annual growth rate of 21.58%. A possible reason for the especially pronounced peak in 2021 was an increase in the prevalence of BPPV as a result of COVID-19. The new coronavirus became a focus of research in 2021. A total of 3,876 authors (of whom 1,097 were first authors) published articles in 307 different journals; 15.7% of the articles were published in Acta Oto-Larygologica, Otology and Neurotology, and Frontiers in Neurology. Acta Oto-Laryngologica was well ahead of the other journals in terms of growth rate and number of articles published. American scholars generated the largest number of articles overall, and the USA was involved in the greatest number of international collaborations, followed by Italy and China. The themes of the research centered around three topics, namely the treatment of BPPV, its influencing factors, and diagnosis.ConclusionsThere has been a major increase in BPPV-related research over the last 50 years, leading to an increase in related articles and rapid development of the field. Key directions for future research include the improvement of individualized treatment for residual symptoms after initial treatment of BPPV among the elderly; effective control of comorbidities such as osteoporosis; and secondary inner ear disease, such as Ménière's disease.

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Clinical Characteristics and Risk Factors for the Recurrence of Benign Paroxysmal Positional Vertigo.

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