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Original Articles
- Micronutrient and hydration deficiencies in individuals with dizziness: clinical implications based on symptoms and head impulse test: a cross-sectional study
- Jun Sung Bahn, Hee Won Seo, Jae Ho Chung, Seung Hwan Lee, Sang-Yoon Han
- Res Vestib Sci. 2025;24(4):227-236. Published online December 15, 2025
- DOI: https://doi.org/10.21790/rvs.2025.027
- 3,439 View
- 33 Download
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Abstract
PDF - Objectives
Dizziness is one of the most common clinical complaints with significant impact on individual and socioeconomic levels, often leading to a reduced quality of life and potential nutritional compromise. This study aims to investigate the relationship between dizziness symptoms, vestibular function, and nutritional intake.
Methods
A total of 1,663 participants were included from the eighth Korea National Health and Nutrition Examination Survey (2021) and categorized into four groups (control, non-vestibulopathy dizziness, asymptomatic vestibulopathy, and symptomatic vestibulopathy) based on video head impulse test results and dizziness history. Nutritional intake was assessed via 24-hour dietary recall and statistical comparisons were performed with adjustment for multiple covariates.
Results
After statistical sample weighting and adjusting for multiple covariates, significant differences in total food, hydration, sugar, calcium, phosphorus, sodium, potassium, magnesium, vitamin D, vitamin E, beta-carotene, thiamine, riboflavin and niacin were observed among the four groups (p<0.05 for all). The symptomatic vestibulopathy group and non-vestibulopathy dizziness group showed significantly lower consumption of diverse minerals and vitamins compared to the control group, although the specific deficient nutrients varied between the two groups. In contrast, the asymptomatic vestibulopathy group exhibited better nutritional status than the other groups.
Conclusions
Considering numerous complications and comorbidities linked to poor nutrition, these findings highlight the clinical relevance of early nutritional evaluation and support for individuals presenting with dizziness.
- Influence of Otoliths on the Vestibulo-Ocular Reflex in Horizontal Canal Benign Paroxysmal Positional Vertigo
- Hee Soo Yoon, Jae Yeong Jeong, Jae Ho Chung, Ha Young Byun, Chul Won Park, Seung Hwan Lee
- Res Vestib Sci. 2020;19(2):49-54. Published online June 15, 2020
- DOI: https://doi.org/10.21790/rvs.2020.19.2.49
- 12,381 View
- 156 Download
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Abstract
PDF
- Objectives
The aim of the study was to evaluate the possible alteration of the vestibulo-ocular reflex (VOR) in patients with horizontal canal benign paroxysmal positional vertigo (h-BPPV) using the video head impulse test (vHIT).
Methods
This was a prospective case-control study of BPPV patients. We includeed 133 patients with h-BPPV who underwent the vHIT prior to the positioning test. The control group consisted of 76 normal subjects who also underwent the vHIT. The vHIT parameters of gain and asymmetry were assessed, and clinical parameters such as treatment duration, number of canalith reposition maneuvers executed and recurrence rates were evaluated. The VOR and clinical parameters were compared between the h-BPPV and control group. The VOR parameters of h-BPPV canalolithiasis were also compared with those of cupulolithiasis.
Results
The mean age of the patients was 56.5 years and the male to female ratio was 1:2.02. Of the patients, 75 were diagnosed as having the canalolithiasis type of h-BPPV, while the other 58 had the cupulolithiasis type. The mean vHIT gains of the ipsi-lesional horizontal canal plane were 1.13 and 1.15 in the h-BPPV and control group, respectively (p=0.564). However, the asymmetry of the VOR was significantly higher in the h-BPPV than the control group (p=0.013), while the gains and asymmetries of the vHIT in the canalolith and cupulolith types were not significantly different (p=0.454, p=0.826).
Conclusions
The asymmetry of VOR is significantly elevated in the cupulolith type of hBPPV.
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