Variantes de afectación del conducto semicircular posterior en el vértigo posicional paroxístico benigno

IF 0.9 Q3 OTORHINOLARYNGOLOGY
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引用次数: 0

Abstract

Benign paroxysmal positional vertigo is the most common cause of peripheral vertigo. It is characterized by short and recurrent episodes of vertigo, trigged by specific head movements that displace otoconia within the semicircular canals. The movement of dislodge otoconia from the utricle cause abnormal positional endolymphatic currents. Primary treatment involves reposition maneuvers aimed at moving the displaced otoconia out the affected canal, therefore correct identification of the affected canal is essential for the diagnosis. The posterior semicircular canal (PSC) is the most frequently affected due to its spatial orientation and the force of gravity. Recent technological advances have allowed for better assessment of positional nystagmus during diagnostic and therapeutic maneuvers, revealing various possible scenarios of PSC involvement. Regarding the PSC, otoconia may be found in different parts of the canal, and not just in the expected location, floating in the long arm of the canal. The understanding of these variants is crucial, as the prognosis and the disease progression differ in such cases. This review aims to describe the six possible variants of PSC involvement described so far.

良性阵发性位置性眩晕后半规管受累的变异情况
良性阵发性位置性眩晕是周围性眩晕最常见的病因。它的特点是眩晕发作时间短且反复发作,由特定的头部运动引发,使耳膜在半规管内移位。耳膜从耳道移位的运动会导致位置异常的内淋巴电流。初级治疗包括重新定位操作,目的是将移位的耳膜移出受影响的耳道,因此正确识别受影响的耳道对诊断至关重要。由于后半规管(PSC)的空间方向和重力作用,它最常受到影响。最近的技术进步使得在诊断和治疗过程中可以更好地评估位置性眼球震颤,从而揭示出 PSC 受影响的各种可能情况。关于 PSC,耳骨膜可能出现在耳道的不同部位,而不仅仅是在预期的位置,如耳道长臂的浮动。了解这些变异是至关重要的,因为在这些病例中,预后和疾病的进展都不尽相同。本综述旨在描述迄今所描述的 PSC 受累的六种可能变异。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.40
自引率
20.00%
发文量
44
审稿时长
44 days
期刊介绍: Es la revista más importante en español dedicada a la especialidad. Ofrece progresos científicos y técnicos tanto a nivel de originales como de casos clínicos. Además, es la Publicación Oficial de la Sociedad Española de Otorrinolaringología y Patología Cérvico-Facial y está presente en los más prestigiosos índices de referencia.
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