-
One Case of Downbeat Nystagmus with Compression of Vestibulocochlear Nerve by Vertebral Arteries
-
Gyu Cheol Han, Ju Hyoung Lee, Jong Su Ha, Hee Young Hwang, Cheol Wan Park
-
J Korean Bal Soc. 2004;3(1):184-186.
-
-
-
 Abstract
 PDF
- A case is reported of downbeat nystagmus associated with compression of the root of vestibulocochlear nerve by
vertebral arteries, which was revealed by magnetic resonance imaging. Chief complain of the patient was positional
vertigo, which aggrevated at left decubitus position. Downbeat nystagmus was increased in left Dix-hall pike test.
Tetsuo et al, reported downbeat nystagmus with compression of dolichoectatic vertebral arteries to the medulla
oblongata and surgical neurovascular decompression of the dolichoectasia reverses the progression of symptoms if
permanent neurologic damage has not already occurred.
Key Words : Vertical nystagmus, Vertebrobasilar dolichoectasia, Vestibulocochlear nerve
-
Retrospective Study of Magnetic Resonance Imaging & Vestibular Function Testing in Patients Suggestive of Central Vestibular Disorders
-
Gyu Cheol Han, Ju Hyoung Lee, Dong Kyu Kim, Hee Young Hwang, Jin Myoung Heo
-
J Korean Bal Soc. 2004;3(1):141-149.
-
-
-
Abstract
PDF
- Background
and Objectives : There were many tools to evaluate dizzy patients with various causes. Our aim was
to find the relationship between the magnetic resonance imaging(MRI) and vestibular function testing(VFT) in patients
who are supposed of central vestibular disorders and to evaluate their effects.
Materials and Methods : We selected 183 patients retrospectively by standardized questionnaires, physical
examinations ,chart reviews from 3,825 patients who visited otorhinolaryngology via department of emergency and out
patient clinic with chief complaints of dizziness. Among them, 13 patients were supposed to have MRI in relation to
dizziness. We analyzed the result of VFT, MRI findings and then classified them in according to lesion locations,
pathologic findings in MRI & optokinetic tests, caloric tests, step velocity tests, vestibulo-ocular tests, visual fixation
tests in VFT.
Results
: There were 9 ischemic findings, 1 hemorrhagic finding, 3 neoplasms in pathologic findings. There were
5 pons lesions, 4 cerebellum lesions, 3 thalamus lesions, 2 medulla lesions, 2 pituitary lesions and 1 caudate nucleus
lesions in locations.
Conclusions
: Dizzy patients visiting otorhinolaryngology OPD had 0.34%(13/3825) central origin vertigo, and
vascular disease is most common. Therefore we supported that careful readings of VFT findings in identifying central
vestibular disorders were valuable and might well represent the gold standard. MRI was an important tool for evaluating
the central nervous system, and we should use MRI to assess central vestibular dysfunction. We concluded MRI
correlated well with VFT findings of central vestibular dysfunction.
Key Words : Vestibular function testing, Magnetic resonance imaging, Dizziness
|
KBS
