Research in Vestibular Science

Eek-Sung Lee

5 Articles

Prevalence and preferred medication for vestibular migraine in Menière’s disease: a multicenter retrospective cohort study in Korea: Dong-Han Lee, Hong Ju Park, Kyu-Sung Kim, Hyun Ji Kim, Jae-Yong Byun, Min-Beom Kim, Minbum Kim, Myung-Whan Suh, Jae-Hyun Seo, Jong Dae Lee, Eun-Ju Jeon, Myung Hoon Yoo, Seok Min Hong, Sung-Kwang Hong, Hyo-Jeong Lee, Jung Woo Lee, Se-Joon Oh, Hyun Ah Kim, Hyung Lee, Eek-Sung Lee, Eun-Jin Kwon, Seong-Hae Jeong, Jeong-Yoon Choi, Chang-Hee Kim; Res Vestib Sci. 2024;23(2):37-45. Published online June 14, 2024; DOI: https://doi.org/10.21790/rvs.2024.005

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Abstract PDF Supplementary Material: Objectives
The aim of this study is to categorize headaches associated with definite Menière’s disease (MD) according to diagnostic criteria, to determine their prevalence, and to investigate the preferred medication across participating centers.
Methods
Patients diagnosed with definite MD at 17 university hospitals in otolaryngology or neurology departments in Korea between January 1, 2021 to December 31, 2021 were retrospectively included. Data on the presence of accompanying vestibular migraine (VM), migraine or non-migraine headaches, and clinical information were collected. A survey was conducted to assess preferences for treatment drugs for vertigo and headache control in MD patients with headache.
Results
A total of 435 definite MD patients were included, with a mean age of 57.0±14.9 years. Among them, 135 (31.0%) had accompanying headaches, of whom 48 (11.0% of all definite MD patients) could be diagnosed with VM. The prevalence of comorbid VM (definite and probable) was significantly higher in females (41 of 288, 14.2%) than in males (7 of 147, 4.8%) (p<0.05). There was no significant difference in the prevalence of comorbid VM between unilateral and bilateral MD patients (10.8% and 13.6%, respectively) (p > 0.05). Benzodiazepines, antihistamines, and antiemetics were mainly preferred for acute vertigo control, while nonsteroidal anti-inflammatory drugs, acetaminophen, and triptans were preferred for acute headache control, and topiramate, propranolol, and calcium channel blockers were mainly preferred for headache prevention.
Conclusions
VM is not uncommon in patients with definite MD in Korea. Further research is needed to understand the differences in headache prevalence and preferred medications across different centers.

Impairment of Vestibular Function in Patients with Vestibular Schwannoma According to the Presence of Dizziness: Youngjeong Lee, Se A Lee, Eek-Sung Lee, Tae-Kyeong Lee, Jong Dae Lee; Res Vestib Sci. 2022;21(3):75-79. Published online September 15, 2022; DOI: https://doi.org/10.21790/rvs.2022.21.3.75

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Abstract PDF: Objectives
Vestibular schwannoma (VS) is a benign Schwann cell-derived slow growing tumor originating from the vestibular nerve. Here, we aimed to investigate the correlation between the presence of the dizziness symptoms and several vestibular function test results.
Methods
We analyzed 32 patients who diagnosed with VS from 2010 to 2021 in our hospital. Caloric test, cervical vestibular-evoked myogenic potential (cVEMP) test, and video head impulse test (vHIT) were analyzed.
Results
Age, sex, pure tone audiometry, and tumor size did not show any statistical significance according to the presence or absence of dizziness. There was also no association between the presence of dizziness symptom or dizziness type and the results of the caloric test, vHIT, and cVEMP test, respectively. However, patients with dizziness had a higher rate of tumors confined to the inner auditory canal than those without dizziness.
Conclusions
In this study, the rate of complaints of dizziness was higer in patients with intracanalicular VS. The diagnostic role of vestibulsr function tests in VS is limited. The dissociation of the results of caloric test, vHIT, and cVEMP test suggest that these test are complementary.

Interaction of Autonomic and Vestibular System: Eek-Sung Lee, Tae-Kyeong Lee; Res Vestib Sci. 2018;17(1):1-7. Published online March 15, 2018; DOI: https://doi.org/10.21790/rvs.2018.17.1.1

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Abstract PDF

The relationship between the vestibular system and the autonomic nervous system has been well studied in the context of the maintenance of homeostasis to the changing internal and external milieus. The perturbations of the autonomic indexes to the vestibular stimuli have been demonstrated in animal studies. In addition, the fluctuation of the blood pressure and the heart rate with other autonomic symptoms such as nausea, vomiting, and pallor are common manifestations in the wide range of vestibular disorders. At the same time, the disorders of the autonomic nervous system can cause dizziness and vertigo in some group of patients. In the anatomical point of view, the relationship between autonomic and vestibular systems is evident. The afferent signals from each system converge to the nucleus of solitary tract to be integrated in medullary reticular formation and the each pathway from the vestibular and autonomic nervous system is interconnected from medulla to cerebral cortex. In this paper, the reported evidence demonstrating the relationship between autonomic derangement and vestibular disorders is reviewed and the further clinical implications are discussed.

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AGE FEATURES OF THE VESTIBULAR ANALYZER
S.N. Vadzyuk, R.M. Shmata, T.A. Lebedeva, L.B. Lozina
Fiziolohichnyĭ zhurnal.2023; 69(4): 103. CrossRef

Cardiovascular Risk Factors in Total or Divisional Vestibular Neuritis: Seunghee Na, Eek-Sung Lee, Ki-Bum Sung, Tae-Kyeong Lee; Res Vestib Sci. 2017;16(4):135-141. Published online December 15, 2017; DOI: https://doi.org/10.21790/rvs.2017.16.4.135

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Abstract PDF: Objectives
In vestibular neuritis (VN), the lesion preferentially affects the superior vestibular nerve because of the anatomic arrangement. It is well known that VN patients have a higher score of metabolic syndrome or a higher incidence of vertebral artery hypoplasia than controls. However, it is unclear whether the frequency of cardiovascular risk factors can affect the selective involvement of the branch of the vestibular nerve. Thus, we investigated the influence of cardiovascular risk factors on the development of total- or divisional VN. Methods: 61 patients with VN were enrolled. Video head impulse tests and caloric tests were performed to determine which vestibular divisionswere affected. The patients were divided into divisional-VN (superior or inferior) and total-VN groups. Statistical analysis of the frequency of cardiovascular risk factors was performed only in superior and total VN groups because the number of inferior VN patients was too small to be statistically analyzed. Results: Nineteen (31.1%) patients were classified as the total-VN group. In the divisional-VN group (42 patients, 65.6%), 40 were superior VN. The frequency of cardiovascular risk factors are not significantly different in superior VN and total-VN groups (All patients 50/61 [82.0%], superior-VN 36/40 [90.0%], total-VN 13/19 [68.4%]). The frequency of having more than one cardiovascular risk factor was slightly higher in the superior VN group, (13 [68.4%] vs. 36 [90.0%], p=0.062) but did not show any significant difference. Conclusions: The number of cardiovascular risk factors did not differ in superior VN patients compared to total VN patients.

Cardiovascular Risk Factors in Total or Divisional Vestibular Neuritis: Seunghee Na, Eek-Sung Lee, Ki-Bum Sung, Tae-Kyeong Lee; Received August 17, 2017 Accepted November 28, 2017 Published online November 28, 2017; [Accepted]

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Abstract: Objective: In vestibular neuritis (VN), the lesion preferentially affects the superior vestibular nerve because of the anatomic arrangement. It is well known that VN patients have a higher score of metabolic syndrome or a higher incidence of vertebral artery hypoplasia than controls. However, it is unclear whether the frequency of cardiovascular risk factors can affect the selective involvement of the branch of the vestibular nerve. Thus, we investigated the influence of cardiovascular risk factors on the development of total- or divisional VN.
Methods
61 patients with VN were enrolled. Video head impulse tests and caloric tests were performed to determine which vestibular divisions were affected. The patients were divided into divisional-VN (superior or inferior) and total-VN groups. Statistical analysis of the frequency of cardiovascular risk factors was performed only in superior and total VN groups because the number of inferior VN patients was too small to be statistically analyzed.
Results
Nineteen (31.1%) patients were classified as the total-VN group. In the divisional-VN group (42 patients, 65.6%), 40 were superior VN. The frequency of cardiovascular risk factors are not significantly different in superior VN and total-VN groups [All patients 50/61(82.0%), superior-VN 36/40(90.0%), total-VN 13/19(68.4%)]. The frequency of having more than one cardiovascular risk factor was slightly higher in the superior VN group, (13(68.4%) vs. 36(90.0%), p=0.062) but did not show any significant difference.
Conclusions
The number of cardiovascular risk factors did not differ in superior VN patients compared to total VN patients.

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