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A Case of Dolichoectasia of Vertebrobasilar Artery Presenting
Simultaneous Bilateral Sudden Sensorineural Hearing Loss with Vertigo
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Bum Ki Cho, Oh Joon Kwon, Dong Hyun Kim, Chang Woo Kim
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Res Vestib Sci. 2016;15(1):22-26.
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 Abstract
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- Sudden sensorineural hearing loss (SNHL) develops usually in unilateral ear
without known etiology. In contrast, bilateral sudden SNHL is mostly related to
serious systemic diseases and have a severe hearing loss and poor prognosis
compared than unilateral one. We describe here a 59-year-old man presented with
a bilateral sudden SNHL and vertigo possibly attributed to dolichoectasia in
vertebrobasilar artery, and discuss the possible mechanism.
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Otolith Function Tests in Patients with Orthostatic Dizziness
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Su Hyun Ahn, Eun Ju Jeon, Yong Soo Park, Dong Hyun Kim, Inn Chul Nam
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Res Vestib Sci. 2015;14(1):15-20.
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Abstract
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- Background
and Objectives: Orthostatic dizziness (OD) is defined as when
dizziness is provoked by standing up from a supine or sitting position. It is usually
considered as being associated with orthostatic hypotension (OH). On the other
hand, it is recently suggested that otolith organ dysfunction and impaired
vestibulosympathetic reflex may account for development of OH and OD.
Vestibular evoked myogenic potential (VEMP) and subjective visual vertical and
horizontal tests (SVV/SVH) are tools for detecting otolith organ dysfunction. We
assessed cervical VEMP (cVEMP) and SVV/SVH test results in the patients with
OD to evaluate the relationship between OD and otolith organ function. Materials
and Methods: Three hundred-eighty-seven patients who visited dizziness clinic
were enrolled in this study. Seventy-three patients presented with OD (i.e., group
O), while 314 patients did not present OD (i.e., group N). Vestibular function
tests including cVEMP and SVV/SVH were performed. Results: cVEMP showed
abnormal response in 47.9% of group O and 60.2% of group N. Abnormal SVV
was found in 35.6% of group O and 31.5% of group N. Abnormal SVH was
highly found in both group O and group N (30.1%, 27.1%). Conclusion: The
values of SVV/SVH and cVEMP abnormality from both groups were not
significantly different between the groups O and N. This finding suggests that
otolithic function may not be related with OD.
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Analysis of Clinical Features in Patients Showing Bilateral Vestibulopathy with Vestibular Function Test
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Dong Hyun Kim, Jeong Hyun Lee, Bong Jik Kim, Chung Ku Rhee, Jae Yun Jung
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Res Vestib Sci. 2014;13(2):47-52.
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Abstract
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- Background and Objectives: Caloric test and rotatory chair test have been adopted in diagnosing bilateral vestibulopathy. However, most of patients who were confirmed by the diagnostic testing not complained typical symptoms of bilateral vestibulopathy such as ossilopsia and ataxia. Patients who do not have typical symptoms of bilateral vestibulopathy, were often diagnosed with bilateral vestibulopathy by caloric test and slow harmonic acceleration test (SHA). The aim of this study is to assess the clinical features between groups classified according to the caloric test and SHA test, and possibly to investigate the representative test in the diagnosis of bilateral vestibulopathy. Materials and Methods: Seventy-five patients were divided into three groups: (A) patients diagnosed with the caloric test only, (B) patients diagnosed with SHA test only, (C) patients satisfying the diagnostic criteria of both tests. Clinical characteristics, the results of physical examination, hearing test and vestibular function test (VFT) were compared among three groups. Results: There was no difference in clinical characteristics and results of physical examination among three groups. Regarding VFT results, only in step velocity test, The proportion of patients who showed low gain value on both sides were higher in group C than that of group A and B. No difference was observed in the other VFT results among three groups. Conclusion: We could not predict the clinical features of bilateral vestibulopathy by the results of VFT, and could not find preferable test in diagnosing bilateral vestibulopathy.
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Effects of Meteorological Factors on the Onset of Vestibular Neuritis
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Eun Ju Jeon, Dong Hyun Kim
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Res Vestib Sci. 2012;11(4):116-122.
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Abstract
- Background and Objectives: The objective of this study was to evaluate the effect of meteorological factors on the onset of vestibular neuritis. Materials and Methods: Meteorological data from 2004 to 2009 were obtained from the web-based ‘Monthly Weather Reports of the Meteorological Administration’ database. Patients with vestibular neuritis who visited Incheon St. Mary’s Hospital during this same period and presented the precise day on which the symptoms appeared were included in this study involving a retrospective chart review. Twelve meteorological factors were analyzed between the days when vestibular neuritis onset was observed and the days when vestibular neuritis did not occur. Time lags (D-1-D-7) which mean 1-7 days before the onset were included to assess a possible delayed meteorological effect in relation to the onset of vestibular neuritis. Seasonal incidence of vestibular neuritis and a relationship with seasonal patterns of weather parameters were evaluated. Results: Mean values for the meteorological parameters of the days when vestibular neuritis occurred were not significantly different from the days on which vestibular neuritis onset was not observed. At time lag of 3-5 days, mean and maximal wind velocities were significantly higher for the days when vestibular neuritis occurred than the days without vestibular neuritis onset. The incidence of vestibular neuritis was highest in spring, when the wind velocity was higher compared to other seasons. Conclusion: Wind speed and the spring season showed significant relationships with vestibular neuritis occurrence.
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Benign Paroxysmal Positional Vertigo of Childhood
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Seong Jun Choi, Dong Hyun Kim, You Ree Shin, Hun Yi Park, Tae Yun Kim, Yun Hoon Choung
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J Korean Bal Soc. 2006;5(2):269-273.
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Abstract
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- Background
and Objectives: Episodic vertigo and/or dizziness in children are not frequent symptoms. Causes of benign episodic vertigo in pediatric age include bengin paroxysmal vertigo of childhood(BPV) and bengin paroxysmal positional vertigo(BPPV). While BPPV has been frequently observed in adult, less frequently observed in children. The aim is to review the clinical manifestations in children with BPPV.
Materials and Method: 154 children with dizziness or vertigo, who visited the Dizziness Clinic in the Department of Otolaryngology, Ajou University Hospital, Suwon, Korea between January 2001 and November 2006 were selected for this study. From all the patients, a comprehensive history was obtained, followed by clinical examination of the ears, nose, and throat and a complete audiologic and neurotologic examination including electronystagmography. All patients were treated with an appropriate canalith repositioning maneuver(CRP), depending on the type of BPPV.
Results
Seven (4.5%) of 154 children with dizziness or vertigo showed typical BPPV. The mean age was 11.8 years old (9-15 years). The horizontal and anterior semicircular canals were involved in 6 (85.8%) whereas the multiple semicircular canals were involved in 1 (14.2%) patients. Vertigo symptom subsided immediately in 6 (85.7%) patients after one or two trials of CRP, but 1(28.6%) patient showed recurred vertigo, that was treated with retrial of CRP.
Conclusion
The incidence of BPPV in children were much lower than that of adult BPPV, but it was higher than we expected before. We recommend that clinical tests such as Dix-Hallpike maneuver and head rolling test should be performed on all children with dizziness to establish the diagnosis of BPPV.
Key Words : Positional vertigo, Child
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