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A Case of Acute Vestibular Neuritis with Periodic Alternating Nystagmus / 대한이비인후과학회지
Korean Journal of Otolaryngology - Head and Neck Surgery ; : 151-155, 2018.
Artigo em Inglês | WPRIM | ID: wpr-713390
ABSTRACT
Detection of nystagmus is an important diagnostic clue in patients with acute vertigo. Patients with peripheral disorders exhibit nystagmus with a constant direction whereas those with central disorders exhibit nystagmus with changes in direction with or without gaze fixation. Periodic alternating nystagmus (PAN) is a horizontal or horizontal-rotary jerk-type nystagmus that reverses its direction with time. PAN is typically observed in patients with central disorders, such as cerebellar or pontomedullary lesions, but it is also observed in patients with peripheral disorders, albeit rarely. Here we report a rare case of a 58-year-old patient with vertigo with PAN, which was initially suspected as a central disorder, but eventually diagnosed as a peripheral vestibular disorder. We investigated the characteristics and mechanisms of peripheral PAN in this case. The absence of central disorder symptoms, visual suppression of PAN, normal oculomotor findings, and transient persistence are important diagnostic clues for differentiating peripheral from central PAN.
Assuntos

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Vertigem / Nistagmo Patológico / Neuronite Vestibular Limite: Humanos Idioma: Inglês Revista: Korean Journal of Otolaryngology - Head and Neck Surgery Ano de publicação: 2018 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Vertigem / Nistagmo Patológico / Neuronite Vestibular Limite: Humanos Idioma: Inglês Revista: Korean Journal of Otolaryngology - Head and Neck Surgery Ano de publicação: 2018 Tipo de documento: Artigo