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Direction-Changing and Direction-Fixed Positional Nystagmus in Patients With Vestibular Neuritis and Meniere Disease

Kim CH, Shin JE, Yoo MH, Park HJ

OBJECTIVES: Direction-changing positional nystagmus (PN) was considered to indicate the presence of benign paroxysmal positional vertigo involving lateral semicircular canal in most cases. We investigated the incidence of PN on...
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Outcome of Canalith Repositioning Procedure in Patients with Persistent and Transient Geotropic Direction-Changing Positional Nystagmus: Short-term Follow-up Evaluation

Jeon SS, Li SW, Kim SK, Kim YB, Park IS, Hong SM

OBJECTIVES: Patients, who showed persistent geotropic-direction changing positional nystagmus (p-DCPN) tend to have different clinical manifestations from those who showed transient geotropic DCPN (t-DCPN). We investigated the clinical characteristics between...
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Positional Vertigo Showing Direction-Changing Positional Nystagmus after Chronic Otitis Media Surgery: Is It Benign Paroxysmal Positional Vertigo?

Choi S, Shin JE, Kim CH

This case report describes a patient who developed positional vertigo after surgery for chronic otitis media on the right side. Canal wall up mastoidectomy was performed, and the stapes was...
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Central Apogeotropic Direction Changing Positional Nystagmus due to Fourth Ventricle Mass Mimicking Horizontal Canal Cupulolithiasis Benign Paroxysmal Positional Vertigo

Jeon HW, Shim YJ, Park MK, Suh MW

In some dizzy patients the apogeotropic direction changing positional nystagmus (DCPN) can be caused by a central disorder such as a mass lesion near the fourth ventricle or infaction. We...
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Isolated Cerebellar Nodular Infarction with Apogeotropic Central Paroxysmal Positional Nystagmus

Choi YC, Lee SJ

No abstract available.
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Clinical Characteristics of Horizontal Canal Benign Paroxysmal Positional Vertigo with Persistent Geotropic Direction Changing Positional Nystagmus

Ko KM, Song MH, Park JW, Lee JH, Shin YG, Shim DB

OBJECTIVE: The purpose of this study was to identify the clinical characteristics of horizontal canal benign paroxysmal positional vertigo (h-BPPV) with persistent geotropic direction changing positional nystagmus (DCPN). METHODS: One hundred...
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Two Cases of Central Vertigo Presenting as Apogeotropic Direction Changing Positional Nystagmus

Park MC, Park JS, Kim MB, Ban JH

  • KMID: 1910486
  • Res Vestib Sci.
  • 2014 Jun;13(2):57-62.
Positional vertigo and nystagmus without focal neurological symptoms and signs are characteristic features of benign paroxysmal positional vertigo (BPPV). And the apogeotropic positional nystagmus can be diagnosed as cupulolithiasis of...
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Tilt Suppression of the Post-rotatory Nystagmus in Cerebellar Nodular Lesions

Oh SY, Choi KD, Kim JE, Koo JW, Kim JS

  • KMID: 2328964
  • J Korean Bal Soc.
  • 2007 Dec;6(2):161-166.
BACKGROUND AND OBJECTIVES: Head tilt at the end of step rotation about a vertical axis decreases the time constant (TC) of the post-rotatory nystagmus, which is known as tilt-suppression of...
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Isolated Positional Downbeat Nystagmus: Central or Peripheral Positional Nystagmus?

Oh SY

  • KMID: 1603956
  • J Korean Bal Soc.
  • 2006 Dec;5(2):235-241.
BACKGROUND AND OJBECTIVES: Nystagmus produced by static placement of the head in different orientations is termed positional nystagmus and in most instances the cause is a peripheral vestibular disorder, as...
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Traumatic Perilymphatic Fistula Presenting with Direction-Changing Positional Nystagmus

Koo JW, Kim SW, Kim JS, Hong SW

  • KMID: 2329017
  • J Korean Bal Soc.
  • 2004 Jun;3(1):173-176.
Diagnosis of perilymphatic fistula (PLF) is considered in the patient presenting hearing loss associated with ataxia after penetrating injury of the tympanic membrane. PLF accompanies mixed type hearing loss and...
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Central Positional Nystagmus from Focal Brain Lesion

Koo JW, Choi KD, Moon SY, Park SH, Kim JS

  • KMID: 2329011
  • J Korean Bal Soc.
  • 2004 Jun;3(1):129-135.
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...
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Mal de Debarquement Syndrome with Apogeotropic Positional Nystagmus

Kim JS, Yun CH, Huh KH, Kim KS

  • KMID: 2342976
  • J Korean Neurol Assoc.
  • 2002 May;20(3):292-294.
Mal de debarquement syndrome refers to the prolonged sensation of rocking and swaying that is experienced on the return to land following a sea voyage or an air travel. We...
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Three dimensional analysis of caloric nystagmus and effect of visual suppression in cats

Park SN, Yeo SW, Jeon EJ, Chae S, Park YS, Suh BD

  • KMID: 1923256
  • Korean J Otolaryngol-Head Neck Surg.
  • 2001 May;44(5):470-475.
BACKGROUND AND OBJECTIVES: The caloric test is considered to be one of the most sensitive parameters in the diagnosis of peripheral vestibular disorders, although it can test only the function...
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Premature Reversal Caloric Nystagmus in a Patient withMedulloblastoma, Originated from the 4th Ventricle

Lee H, Lee JJ, Jang SS, Lee SH, Lim JG, Yi SD, Park YC

  • KMID: 2342870
  • J Korean Neurol Assoc.
  • 2000 Nov;18(6):794-797.
Some individuals may demonstrate a secondary phase nystagmus (SPN) following the caloric irrigation. It has been stated that if a SPN begins prior to 140 seconds after the onset of...
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A Case of Congenital Vestibular Anomaly with Direction Changing Positional Nystagmus

Chung WK, Kim MS, Yang HD, Lee JH

  • KMID: 2274622
  • Korean J Otolaryngol-Head Neck Surg.
  • 2000 Jan;43(1):90-94.
Direction changing positional nystagmus (DCPN) is defined as a nystagmus that changes its direction with different head and body positions. In the past, it was usually thought that DCPN was...
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Direction Changing Positional Nystagmus from Canalolithiasis and Cupulolithiasis of Lateral Semicircular Canal

Chung WK, Lee WS, Kim MS, Lee JH, Lee SY

  • KMID: 1886943
  • Korean J Otolaryngol-Head Neck Surg.
  • 1999 May;42(5):576-581.
BACKGROUND AND OBJECTIVES: Clinical features of positional nystagmus may be different according to the etiology. Thus, efforts have been made to find out etiologies of various positional nystagmus. Until recently,...
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A Study of Non-Convective Factor of Caloric Nystagmus in Relationship between Head Position and Maximal Slow Phase Eye Velocity

Byun SW, Cho YH, Park SI, Hong SK, Kim CD

  • KMID: 2274586
  • Korean J Otolaryngol-Head Neck Surg.
  • 1999 Oct;42(10):1225-1229.
Background and OBJECTIVE: There are strong evidences that the caloric nystagmus may be due to non-convective factors in addition to the widely accepted Barany's convection theory. The influence of non-convective...
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Positional Nystagmus Elicited by Alcohol, Glycerin, or Heavy Water in the Rabbit

Jeong H, Heo W, Park JS

  • KMID: 1544398
  • Korean J Aerosp Environ Med.
  • 1997 Sep;7(3):23-30.
In unanesthetized rabbits, alcohol, glyserin, or heavy water was injected intravenously and nystagmic reaction elicited by passive alteration of body position was recorded by means of nystagmography, and the specific...
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Positional Nystagmus Caused by Ketamine in Rabbits

Choe H

  • KMID: 2357448
  • Korean J Anesthesiol.
  • 1980 Dec;13(4):325-332.
Rabbits injected with ketamine, 2-8mg/kg, i.v. were subjected to positional manipulation. Rotation of the head to a unilateral direction (from the neutral to the right or left) and returning towards...
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