2022
DOI: 10.3390/audiolres12020018
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Atypical Positional Vertigo: Definition, Causes, and Mechanisms

Abstract: Paroxysmal positional vertigo is a frequent cause for consultation. When approaching these patients, we try to differentiate central from peripheral causes, but sometimes we find manifestations that generate diagnostic doubts. In this review, we address atypical paroxysmal positional vertigo, reviewing the literature on the subject and giving a provisional definition of atypical positional vertigo as well as outlining its causes and pathophysiological mechanisms.

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Cited by 6 publications
(3 citation statements)
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References 37 publications
(59 reference statements)
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“…Our case did not present light cupula features because of the presence of a crescendo–decrescendo pattern of SPV and the lack of a neutral point, but as a distinctive sign, it also presented a vertical downbeat component on the affected side. Furthermore, if the geotropic direction-changing PPN has been attributed to a floccular lesion [ 15 , 16 ], our patient presented with a tumor protruding in the PCA and previous surgery results in that area, so a clear central component on the PPN is possible. Carmona et al [ 17 ] also described another case of AN with short-latency geotropic PPN and no response to liberatory maneuvers.…”
Section: Discussionmentioning
confidence: 99%
“…Our case did not present light cupula features because of the presence of a crescendo–decrescendo pattern of SPV and the lack of a neutral point, but as a distinctive sign, it also presented a vertical downbeat component on the affected side. Furthermore, if the geotropic direction-changing PPN has been attributed to a floccular lesion [ 15 , 16 ], our patient presented with a tumor protruding in the PCA and previous surgery results in that area, so a clear central component on the PPN is possible. Carmona et al [ 17 ] also described another case of AN with short-latency geotropic PPN and no response to liberatory maneuvers.…”
Section: Discussionmentioning
confidence: 99%
“…(2020) показана эффективность вальпроевой кислоты в сочетании с репозиционными маневрами [48]. Таким образом, ВМ должна быть заподозрена при наличии у пациента атипичного позиционного нистагма / головокружения, к числу основных характеристик которого относятся: выявление других неврологических симптомов, наличие изолированного меняющего направление позиционного нистагма, отсутствие латентного периода, низкая скорость, большая продолжительность и отсутствие ответа на репозиционные маневры [49].…”
Section: л е к ц и яunclassified
“…Существенные диагностические сложности могут возникнуть при наличии у пациента изолированного позиционного нистагма. При наличии признаков нетипичности (изолированный меняющий направление позиционный нистагм, несоответствие характеристик нистагма предположительно вовлеченному полукружному каналу, отсутствие латентного периода, персистирование и отсутствие ответа на репозиционные маневры) следует в первую очередь исключать инфаркт мозжечка c поражением клочка или узелка [43].…”
unclassified