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Multicenter Study on the Clinician’s Diagnostic and Therapeutic Approaches for Benign Paroxysmal Positional Vertigo in Korea
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Eun Ju Jeon, Won Ho Chung, Jeong Hwan Choi, Eui Cheol Nam, Hong Ju Park, Jong Dae Lee, Won Sang Lee, Kyu Sung Kim, Eui Kyung Goh, Ja Won Koo, Min Bum Kim, Min Beom Kim, Se Hyung Kim, Young Jin Kim, Chang Hee Kim, Sung Il Nam, Seog Kyun Mun, Ga Young Park, Sang Yoo Park, Shi Nae Park, Chang Hoon Bae, Sung Hyun Boo, Myung Whan Suh, Jae Hyun Seo, Eun Jin Son, Jae Jun Song, Jae Jin Song, Joong Wook Shin, Dae Bo Shim, Seong Ki Ahn, Hye Youn Youm, Shin Young Yoo, Dong Hee Lee, Seung Hwan Lee, Chang Ho Lee, Hyun Seok Lee, Hwan Ho Lee, Hyo Jeong Lee, Yun Hoon Choung, Seung Hyo Choi, Jee Sun Choi, Seok Min Hong, Sung Kwang Hong
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Res Vestib Sci. 2013;12(3):79-92.
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 Abstract
- Background and Objectives: It is necessary to establish the most efficient diagnostic and therapeutic method for benign paroxysmal positional vertigo (BPPV), which is appropriate for Korean healthcare system. We aimed to evaluate current state of Korean clinician’s diagnostic and therapeutic approaches for BPPV. Materials and Methods: A 16-item survey was emailed to the members of dizziness department of Otology Research Interest Group in the Korean Otologic Society (n=68). 43 were returned and analyzed. Results: All respondents (100%) used Dix-Hallpike test as a diagnostic tool for vertical canal-BPPV. Supine roll test was used for diagnosing lateral canal BPPV in nearly all the respondents (97.7%). Epley maneuver was chosen as otolith repositioning maneuver (ORM) for posterior canal BPPV in all respondents and barbecue rotation (BBQ) was used for treating lateral canal BPPV with geotropic nystagmus in 95.3% of respondents. Extreme variation was noted for therapeutic approach of lateral canal BPPV with ageotropic nystagmus BBQ, with 4 kinds of ORM and adjunctive measures to liberate otolith from cupula, while BBQ was again the most commonly used ORM (76.7%). Conclusion: The development of practical and efficient ORM for lateral canal BPPV with ageotropic nystagmus is necessary.
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New Proposal of Functional Status of Vestibular System Based on Vestibular Function Tests Findings in Dizzy Patients with Normal Caloric Response
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Hye Youn Youm, Yang Sun Cho, Sung Hwa Hong, Won Ho Chung
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Res Vestib Sci. 2011;10(4):121-128.
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Abstract
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- Background and Objectives: Vestibular function tests are very useful in diagnosing dizzy patients. Among them, bithermal caloric test is most commonly used test for localizing their permanent vestibular loss. However, it causes much discomfort to the patients with non-physiologic stimuli. In addition, it doesn't represent the present functional status of vestibular system. Therefore, normal caloric result does not accurately correspond to normal vestibular function in dizzy patients. Currently, rotation chair test and dynamic posturography have been introduced adjunctly to assess vestibular function accompanied by bithermal caloric test. It has not been elucidated for their specific role in diverse settings of vestibular disorders. So we planned this study to evaluate clinical usefulness of rotation chair test, videonystagmography and computerized dynamic posturogr-phy in dizzy patients with normal caloric response. Materials and Methods: We reviewed clinical records of 46 patients who met their inclusion criteria. They were categorized into five subgroups according to abnormal vestibular function test findings. Results: In each subgroup, we hypothesized its clinical relevance, possible mechanism of dizz-iness and presumed diagnosis. Five categories are as below; visual dependency, imbalance of vestibular tones, chronic peripheral vestibulopathy, abnormality in the vestibulospinal tract and abnormality of oculomotor system. Conclusion: We suggest new classification of abnormal vestibular functional status in dizzy patients with normal caloric results. These are comparable according their clinical features and thought to be helpful in managing and counseling each patient.
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