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Volume 3 (1); June 2004
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Symposiums
Basics of Eye Movements and Nystagmus
Tae-Kyeong Lee, M.D.
J Korean Bal Soc. 2004;3(1):7-24.
  • 1,851 View
  • 30 Download
PDF
Control of Postural and Autonomic Function by the Vestibular System
Byung Rim Park, M.D.
J Korean Bal Soc. 2004;3(1):25-31.
  • 1,770 View
  • 5 Download
AbstractAbstract PDF
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Nystagmus in Peripheral Vestibular Disease
Seung-Chul Lee, M.D.
J Korean Bal Soc. 2004;3(1):32-35.
  • 1,797 View
  • 11 Download
PDF
Central Nystagmus
Kwang-Dong Choi, M.D
J Korean Bal Soc. 2004;3(1):36-45.
  • 1,478 View
  • 9 Download
AbstractAbstract PDF
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Other Nystagmus
Ki-Bum Sung, M.D., P
J Korean Bal Soc. 2004;3(1):46-56.
  • 1,579 View
  • 5 Download
AbstractAbstract PDF
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Diagnostic Approach to Dizziness
Chung-Ku Rhee, M.D.1
J Korean Bal Soc. 2004;3(1):59-63.
  • 1,787 View
  • 16 Download
AbstractAbstract PDF
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Benign Paroxysmal Positional Vertigo
Gyu Cheol Han, M.D.1
J Korean Bal Soc. 2004;3(1):64-74.
  • 1,531 View
  • 4 Download
PDF
Meniere's Disease
Kyu Sung Kim, M.D.
J Korean Bal Soc. 2004;3(1):75-87.
  • 1,671 View
  • 16 Download
PDF
Dizziness of Vestibular Nerve Disorder
Ja-Won Koo, M.D.1
J Korean Bal Soc. 2004;3(1):88-94.
  • 1,841 View
  • 7 Download
PDF
Central Nervous System Disorders Presenting as Vertigo
Hyung Lee, M.D.
J Korean Bal Soc. 2004;3(1):95-101.
  • 1,492 View
  • 7 Download
PDF
Migraine Related Dizziness, Psychogenic Dizziness and Vestibular Epilepsy
Byung-Kun Kim, M.D.
J Korean Bal Soc. 2004;3(1):102-111.
  • 1,429 View
  • 10 Download
PDF
Original Articles
Vestivbular Influences on Cardiovascular Control: Implications for Astronauts and Otolarynhologists
Bill Yates
J Korean Bal Soc. 2004;3(1):115-122.
  • 1,290 View
  • 4 Download
PDF
Drug Delivery System in Meniere's Disease
Hiroshi Yamashita
J Korean Bal Soc. 2004;3(1):125-126.
  • 1,802 View
  • 6 Download
PDF
Reviews
Central Positional Nystagmus from Focal Brain Lesion
Ja Won Koo, Kwang Dong Choi, So Young Moon, Seong Ho Park, Ji Soo Kim
J Korean Bal Soc. 2004;3(1):129-135.
  • 1,835 View
  • 11 Download
AbstractAbstract PDF
Department of Otolaryngology, Head and Neck Surgery1, and Neurology2, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea Background and Objectives : Central positional nystagmus is induced by positional changes from brainstem or cerebellar lesions. Differentiation central from peripheral positional nystagmus is important in clinical practice. To delineate characteristics of the positional nystagmus observed in central lesions, we analyzed the parameters of positional nystagmus from focal brain lesions. Materials and Methods : Ten patients with central positional nystagmus were recruited from the dizziness clinic of Seoul National University Bundang Hospital. All the patients had focal brainstem or cerebellar lesions documented by magnetic resonance imaging. The nystagmus was observed with and without fixation by using Frenzel glasses or Video Goggles. The nystagmus was videotaped or recorded with video-oculography. Provoking positional maneuvers, direction, latency, duration, phase reversal, and fatigue phenomenon of the nystagmus were analyzed.
Results
: Of the 10 patients, seven had infarctions in the lateral medulla or inferior cerebellum while two experienced cerebellar hemorrhage and remaining one showed a compression of the ventrolateral medulla by cavernous malformation of the vertebral artery. The directions of the positional nystagmus were variable depending on the lesions and provoking maneuvers. Most patients exhibited direction-changing nystagmus without latency, direction-reversal and fatigue phenomenon. However, some of the patients also showed patterns of nystagmus characteristic of peripheral positional nystagmus. In two of the four patients with infarction in the territory of medial posterior inferior cerebellar artery, the positional nystagmus was the only abnormal findings.
Conclusions
: Central positional nystagmus may share many characteristics with peripheral type of positional nystagmus. In individual cases, the patterns of nystagmus should be interpreted with caution in differentiating central from peripheral positional nystagmus. Considering the isolated positional nystagmus in some patients with caudal cerebellar lesions, systematic positional maneuvers should be applied to all the patients with vertigo Key Words : Positional nystagmus, Medulla, Cerebellum
Recurrent Episodic Vertigo Controlled by Phenytoin Sodium
Chung Ku Rhee, Yong Won Chung, Ji Sun Kim, Joon Sik Yoon, Yang Hee Oh
J Korean Bal Soc. 2004;3(1):136-140.
  • 1,690 View
  • 4 Download
AbstractAbstract PDF
Background
: Many patients with symptom of recurrent episodic vertigo can neither be diagnosed nor treated. The purpose of this study is to review clinical features of a group of patients with recurrent episodic vertigo that is not defined to specific diagnosis of vertigo and to test the effectiveness of phenytoin sodium in the patients.
Method
& Material : 11 of 32 patients with recurrent vertigo not defined to specific diagnostic category of vertigo who visited dizziness center of a tertiary care university hospital from November 1995 to April 2004 were studied. The patient's charts were reviewed retrospectively. A thorough otolaryngologic and neurotologic evaluation was performed in every case to determine the specific cause of dizziness. Vestibular function test, hearing test, magnetic resonance imaging of brain, electroencephalogram, and 24 hour Holter EKG monitoring were performed in all cases. Consultations to psychiatrist and neurologist were obtained. All patients were treated with phenytoin sodium.
Result
: The results of the vestibular function test, audiogram, MRI of brain, electroencephalogram, 24-hr holter monitoring were normal. Any definitive diagnosis could not be reached to this group. Vertigo was controlled by phenytoin sodium in all 11 cases.
Conclusion
: We report a group of patients with recurrent episodic vertigo that is not defined to any specific diagnosis of vertigo. The vertigo symptom was controlled successfully by phenytoin sodium. This patients were diagnosed as benign episodic vertigo as a separate disease entity. Key Words : Vertigo, Phenytoin sodium, Episodic

Res Vestib Sci : Research in Vestibular Science