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Audiovestibular loss in anterior inferior cerebellar artery territory infarction: A window to early detection?

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Author(s)
Hyung Lee
Keimyung Author(s)
Lee, Hyung
Department
Dept. of Neurology (신경과학)
Brain Research Institute (뇌연구소)
Journal Title
Journal of the Neurological Sciences
Issued Date
2012
Volume
313
Issue
1-2
Keyword
Audiovestibular lossAICA territory infarction
Abstract
Acute audiovestibular loss is a common neurotological condition that is characterized by sudden onset of severe prolonged (lasting days) vertigo and hearing loss and is diagnosed by the presence of canal paresis to caloric stimulation and sensorineural hearing loss on pure tone audiogram. Before 2000, papers on anterior inferior cerebellar artery (AICA) territory infarction focused mostly on associated brainstem and cerebellar findings, without a detailed description of neurotological findings. Since 2000, several reports have demonstrated that acute audiovestibular loss is an important sign for the diagnosis of AICA territory infarction. To date, at least eight subgroups of AICA infarction have been identified according to the pattern of neurotological presentations, among which the most common pattern of audiovestibular dysfunction is the combined loss of auditory and vestibular functions. Because audiovestibular loss may occur in isolation before ponto-cerebellar infarction involving AICA distribution, audiovestibular loss may serve as a window to prevent the progression of acute audiovestibular loss into more widespread areas of infarction in posterior circulation (mainly in the AICA territory). Clinician should keep in mind that acute audiovestibular loss may herald impending AICA territory infarction, especially when patients had basilar artery occlusive disease presumably close to the origin of the AICA on brain MRA, even if other central signs are absent and MRI does not demonstrate acute infarction.
Keimyung Author(s)(Kor)
이형
Publisher
School of Medicine
Citation
Hyung Lee. (2012). Audiovestibular loss in anterior inferior cerebellar artery territory infarction: A window to early detection? Journal of the Neurological Sciences, 313(1–2), 153–159. doi: 10.1016/j.jns.2011.08.039
Type
Article
ISSN
0022-510X
Source
https://www.sciencedirect.com/science/article/pii/S0022510X11005363?via%3Dihub
DOI
10.1016/j.jns.2011.08.039
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/34280
Appears in Collections:
3. Research Institutues (연구소) > Brain Research Institute (뇌연구소)
1. School of Medicine (의과대학) > Dept. of Neurology (신경과학)
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