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Quantifying the Prevalence of Acute Vestibular Neuritis through Big Data Analysis
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Chul Young Yoon, Seulgi Hong, Ji-Yun Park, Young Joon Seo
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Res Vestib Sci. 2023;22(3):68-76. Published online September 15, 2023
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DOI: https://doi.org/10.21790/rvs.2023.22.3.68
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 Abstract
 PDF Supplementary Material
- Objectives
Big data analytics in healthcare research have gained momentum, offering unprecedented opportunities to investigate complex medical conditions like acute vestibular neuritis (AVN). However, an inappropriate definition can introduce bias and inaccuracies into prevalence estimation, making the results unreliable and hindering cross-study comparisons. The Health Insurance data in South Korea will be used to create a robust operational definition for AVN.
Methods
The study utilized the National Patients Sample dataset from the Health Insurance Review and Assessment Service (HIRA) of the Republic of Korea. The operational definition of AVN was defined using the HIRA data, which includes specific codes for diagnosis, testing, and medications. The revised categorization scheme for AVN was presented as case 1 through case 5, with criteria for each category.
Results
The optimal conditions are deemed to be those that encompass the outcomes of both case 5 and case 1-1, encompassing all conditions. The study also provided prevalence estimates for subgroups based on demographic factors (age, sex), and found a consistent pattern throughout all years, sex, and age.
Conclusions
The study analyzed the prevalence of AVN in case 1 and case 5, which were similar to the reference prevalence of 3.5 per 100,000 people reported in other countries. The study’s results are encouraging for several reasons, including the validity of the operational definitions used, and the agreement between the study’s prevalence estimates and the reference prevalence. The operational definition in statistics, in the context of big data, serves as a precise and standardized criterion.
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Brun’s Nystagmus with Cerebellopontine Angle Schwannoma
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Seulgi Hong, Ji-Yun Park, Seungjin Choi, Min Jee Kim
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Res Vestib Sci. 2023;22(2):57-58. Published online June 15, 2023
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DOI: https://doi.org/10.21790/rvs.2023.22.2.57
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PDFSupplementary Material
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Posterior Inferior Cerebellar Artery Stenosis Presenting as Recurrent Orthostatic Dizziness
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Seongjin Jeon, Ji-Yun Park, Jong-min Lee, Seulgi Hong
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Res Vestib Sci. 2022;21(2):53-56. Published online June 15, 2022
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DOI: https://doi.org/10.21790/rvs.2022.21.2.53
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Abstract
PDF
- We report a unique case of vertebrobasilar transient ischemic attacks manifesting as isolated, recurrent, orthostatic dizziness with posterior inferior cerebellar artery (PICA) stenosis. A 57-year-old male patient without past medical history, presented with brief orthostatic dizziness for 2 weeks. There was no associated nausea, vomiting, diplopia, or weakness. On neuro-otologic examination, the patient did not show spontaneous, positional, or gaze-evoked nystagmus. Vestibular function tests such as caloric test, head impulse test, video-oculography, and tilt table test were normal. Brain diffusion-weighted images showed multiple small high signal intensities in the bilateral cerebellar hemispheres. Brain magnetic resonance angiography revealed hypoplasia of the right vertebral artery without focal intracranial focal stenosis. Four-vessel cerebral angiogram showed severe stenosis at the right PICA artery. Our patient’s clinical scenario appears unique hemodynamic spells without symptoms or signs of posterior circulation ischemia. Physicians should also consider cerebrovascular ischemic when the patient suffers repeated orthostatic dizziness that is not explained clinically.
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KBS
