-
Otologic Causes of Drop Attacks in Elderly Patients
-
Hyung Lee, Hyon Ah Yi, Jeong Geung Lim, Byung Hoon Ahn, Byung Rim Park
-
J Korean Bal Soc. 2004;3(2):372-378.
-
-
-
 Abstract
 PDF
- Background
and Objectives : Many neurologists are unaware of the drop attack that may occur from an inner ear dysfunction especially in elderly. We performed this study to investigate the clinical features and results of quantitative audiovestibular tests in six elderly patients (≥65 years of age) who presented with drop attacks attributable to an inner ear pathology.
Materials and Method : Group was divided into Meniere's syndrome (4) or non-Meniere peripheral vestibulopathy (2). Standard dizziness questionnaire and quantitative audiovestibular function testing were performed.
Results
: Episodes were described as a sudden push to the ground in four or a violent illusionary movement of environment leading to a fall in two. All cases gave a history of prior vertiginous episodes and vestibular testing revealed unilateral caloric paresis. Ipsilateral hearing loss was documented in four cases.
Conclusions
: Our results suggest that otologic causes should be considered in the differential diagnosis of the drop attack in elderly, even if the symptoms and signs were not consistent with Meniere's syndrome.
-
Sudden Deafness and Anterior Inferior Cerebellar Artery Infarction
-
Hyung Lee, Sung Il Sohn, Doo Kyo Jung, Yong Won Cho, Jeong Geung Lim, Sang Doe Yi
-
J Korean Bal Soc. 2002;1(1):124-131.
-
-
-
Abstract
PDF
- Background
and objectives : Acute ischemic stroke in the distribution of the anterior inferior cerebellar artery (AICA) is known to be associated with vertigo, nystagmus, facial weakness, and gait ataxia. There have been few reports on deafness associated with the AICA infarction. Furthermore, previous neurological reports have not emphasized the inner ear as a localization of sudden deafness. The aim of this study was to investigate the incidence of deafness associated with the AICA infarction and the sites predominantly involved in deafness.
Materials and method : During two years we prospectively identified 12 consecutive patients with unilateral AICA infarction diagnosed by brain MRI. Pure tone audiogram, speech discrimination testing, stapedial reflex testing, and auditory brainstem responses were performed to localize the site of lesion in the auditory pathways. Electronystagmography was also performed to evaluate the function of the vestibular system.
Results
: The most common affected site on brain MRI was the middle cerebellar peduncle (11). Four patients had vertigo and/or acute auditory symptoms such as hearing loss or tinnitus as an isolated manifestation from 1day to 2months prior to infarction. Audiological testings confirmed sensorineural hearing loss in 11 (92%) patients, predominantly involved the cochlea in 6 and retrocochlear in 1. The other 4 patients had a severe to profound hearing loss most likely of cochlear origin. Electronystagmography demonstrated no response to caloric stimulation in 10(83%) patients.
Conclusions
: In our series, sudden deafness was an important sign for the diagnosis of the AICA infarction. Audiological examinations suggest that sudden deafness in AICA infarction is usually due to dysfunction of the cochlea, resulting from ischemia to the inner ear.
|
KBS
