Research in Vestibular Science

Soyeon Yoon

6 Articles

Characteristics of Nystagmus during Attack of Vestibular Migraine: Soyeon Yoon, Mi Joo Kim, Minbum Kim; Res Vestib Sci. 2019;18(2):38-42. Published online June 15, 2019; DOI: https://doi.org/10.21790/rvs.2019.18.2.38

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Objectives
The purpose of this study is to investigate characteristics of nystagmus during attacks of vestibular migraine (VM), and to find a distinct clinical feature compared to other migraine and peripheral vestibular disorders.
Methods
This study is a retrospective chart review of 82 patients satisfied with VM criteria, which is formulated by the new Bárány Society. Spontaneous and positional nystagmus provoked by various head positions were examined with video-nystagmography in all patients. Bithermal caloric test and cervical vestibular evoked myogenic potential test (cVEMP) were also performed. The direction and peak slow-phase velocity (SPV) of nystagmus, unilateral caloric weakness and interaural difference of cVEMP were analyzed. Control groups were lesion side in acute VN for nystagmus results and healthy side in the patients with benign paroxysmal positional vertigo of posterior semicircular canal for caloric and cVEMP results. Chi-square test and Mann-Whitney U-test were used for statistical analysis.
Results
During the acute attack, nystagmus was seen in 71.9% (59 of 82) of patients. Horizontal nystagmus was the predominant type. Peak SPV in VM patients was much slower than in the control group (2.37±1.73 °/sec vs. 17.05±12.69 °/sec, p＜0.0001). There was no significant difference on the result of both caloric and cVEMP test, compared to those of control groups.
Conclusion
Nystagmus with horizontal directions and low SPV was dominant form in the attack of VM. Close observation of nystagmus can be helpful to make a correct diagnosis and to understand the pathomechanism of vertigo in VM.

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Vestibular Migraine: A Recent Update on Diagnosis and Treatment
Young Seo Kim, Hak Seung Lee
Research in Vestibular Science.2022; 21(3): 67. CrossRef

Posttraumatic Peripheral Vertigo: Soyeon Yoon, Mi Joo Kim, Minbum Kim; Res Vestib Sci. 2018;17(4):125-129. Published online December 21, 2018; DOI: https://doi.org/10.21790/rvs.2018.17.4.125

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Abstract PDF: Posttraumatic vertigo can be defined as the vertiginous disorder occurred after head and neck trauma without other pre-existing vestibular disorder. Central, peripheral, and combined deficits might cause this condition. Especially, various peripheral vestibulopathies are possible causes of posttraumatic vertigo; benign paroxysmal positional vertigo, temporal bone fracture, perilymphatic fistula, labyrinthine concussion, posttraumatic hydrops, and cervical vertigo. Since the differential diagnosis of the posttraumatic vertigo is often difficult, it is essential to acquire knowledge of their pathophysiology and clinical features. In this review, peripheral vestibulopathy as the possible causes of posttraumatic vertigo were described according to the current literature.

Hyper-response of Cervical Vestibular Evoked Myogenic Potential in Patients with Meniere Disease: A Preliminary Study: Soyeon Yoon, Mi Joo Kim, Minbum Kim; Res Vestib Sci. 2018;17(2):44-48. Published online June 15, 2018; DOI: https://doi.org/10.21790/rvs.2018.17.2.44

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Abstract PDF

Objectives
The purpose of this study is to investigate the hyper-responsiveness of cervical vestibular-evoked myogenic potential (cVEMP) in patients with Meniere disease (MD), and to compare the result of cVEMP between probable and definite MD group.
Methods
A total of 110 patients satisfied with probable MD and definite MD criteria, which is recently formulated by the Classification Committee of the Bárány Society, were included. An interpeak amplitude and interaural amplitude difference (IAD) ratio of both ears was measured. The abnormal response of ipsi-lesional cVEMP was categorized into 2 groups; hyper-response and hypo-response. Chi-square test and Mann-Whitney U-test were used for statistical analysis.
Results
In the probable MD and definite MD group, the mean IAD was 25.24%±17.79% and 53.82%±34.98%, respectively (p＜0.01). The abnormal response of cVEMP at the affected ear was more frequent in the definite MD group, compared to the probable MD group (32/40 vs. 13/36, p＜0.01). However, hyper-response was more frequently observed in the patients with probable MD, compared to the patients with definite MD (13/36 vs. 3/40, p＜0.01).
Conclusion
Hyper-response of cVEMP was more frequently observed in the early probable MD patients. It might be an early sign of MD, related with the saccular hydrops, which can help the early detection and treatment.

Citations

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Superior Semicircular Canal Dehiscence Syndrome Manifested as Menière’s Disease: A Case Report
Byeong Jin Kim, Yun Na Yang, Chan Mi Lee, Eun Jung Lee
Research in Vestibular Science.2021; 20(3): 108. CrossRef
Characteristics of Nystagmus during Attack of Vestibular Migraine
Soyeon Yoon, Mi Joo Kim, Minbum Kim
Research in Vestibular Science.2019; 18(2): 38. CrossRef

Hyper-response of cVEMP (cervical vestibular evoked myogenic potential) in patients with Meniere disease : a preliminary study: Soyeon Yoon, Mi Joo Kim, Minbum Kim; Received May 16, 2018 Accepted June 5, 2018 Published online June 5, 2018; [Accepted]

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Abstract: Objective: The purpose of this study is to investigate the hyper-responsiveness of cervical vestibular-evoked myogenic potential (cVEMP) in patients with Meniere’s disease (MD) , and to compare the result of cVEMP between probable and definite MD group.
Methods
A total of 110 patients satisfied with “Definite” and “Probable MD” criteria, which is recently formulated by the Classification Committee of the Bárány Society, were included. An inter-peak amplitude and interaural amplitude difference (IAD) ratio of both ears was measured. The abnormal response of ipsi-lesional cVEMP was categorized into two groups; “hyper-response” and “hypo-response”. Chi-square test and Mann-Whitney U test were used for statistical analysis.
Results
In the “Probable MD” and “Definite MD” group, the mean IAD was 25.24±17.79% and 53.82±34.98% , respectively (p<0.01). The abnormal response of cVEMP at the affected ear was more frequent in the “Definite MD” group, compared to the “Probable MD” group (32/40 vs. 13/36, p<0.01). However, hyper-response was more frequently observed in the patients with “Probable MD” , compared to the patients with “Definite MD” (13/36 vs. 3/40, p<0.01).
Conclusion
Hyper-response of cVEMP was more frequently observed in the early “probable MD” patients. It might be an early sign of MD, related with the saccular hydrops, which can help the early detection and treatment.

Hyper-response of cVEMP (cervical vestibular evoked myogenic potential) in patients with Meniere disease : a preliminary study: Soyeon Yoon, Mi Joo Kim, Minbum Kim; Received May 16, 2018 Accepted June 5, 2018 Published online June 5, 2018; [Accepted]

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Abstract: Objective: The purpose of this study is to investigate the hyper-responsiveness of cervical vestibular-evoked myogenic potential (cVEMP) in patients with Meniere’s disease (MD) , and to compare the result of cVEMP between probable and definite MD group.
Methods
A total of 110 patients satisfied with “Definite” and “Probable MD” criteria, which is recently formulated by the Classification Committee of the Bárány Society, were included. An inter-peak amplitude and interaural amplitude difference (IAD) ratio of both ears was measured. The abnormal response of ipsi-lesional cVEMP was categorized into two groups; “hyper-response” and “hypo-response”. Chi-square test and Mann-Whitney U test were used for statistical analysis.
Results
In the “Probable MD” and “Definite MD” group, the mean IAD was 25.24±17.79% and 53.82±34.98% , respectively (p<0.01). The abnormal response of cVEMP at the affected ear was more frequent in the “Definite MD” group, compared to the “Probable MD” group (32/40 vs. 13/36, p<0.01). However, hyper-response was more frequently observed in the patients with “Probable MD” , compared to the patients with “Definite MD” (13/36 vs. 3/40, p<0.01).
Conclusion
Hyper-response of cVEMP was more frequently observed in the early “probable MD” patients. It might be an early sign of MD, related with the saccular hydrops, which can help the early detection and treatment.

Hyper-response of cVEMP (cervical vestibular evoked myogenic potential) in patients with Meniere disease : a preliminary study: Soyeon Yoon, Mi Joo Kim, Minbum Kim; Received May 16, 2018 Accepted June 5, 2018 Published online June 5, 2018; [Accepted]

1,072 View
0 Download

Abstract: Objective: The purpose of this study is to investigate the hyper-responsiveness of cervical vestibular-evoked myogenic potential (cVEMP) in patients with Meniere’s disease (MD) , and to compare the result of cVEMP between probable and definite MD group.
Methods
A total of 110 patients satisfied with “Definite” and “Probable MD” criteria, which is recently formulated by the Classification Committee of the Bárány Society, were included. An inter-peak amplitude and interaural amplitude difference (IAD) ratio of both ears was measured. The abnormal response of ipsi-lesional cVEMP was categorized into two groups; “hyper-response” and “hypo-response”. Chi-square test and Mann-Whitney U test were used for statistical analysis.
Results
In the “Probable MD” and “Definite MD” group, the mean IAD was 25.24±17.79% and 53.82±34.98% , respectively (p<0.01). The abnormal response of cVEMP at the affected ear was more frequent in the “Definite MD” group, compared to the “Probable MD” group (32/40 vs. 13/36, p<0.01). However, hyper-response was more frequently observed in the patients with “Probable MD” , compared to the patients with “Definite MD” (13/36 vs. 3/40, p<0.01).
Conclusion
Hyper-response of cVEMP was more frequently observed in the early “probable MD” patients. It might be an early sign of MD, related with the saccular hydrops, which can help the early detection and treatment.

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