Gaze-Evoked and Perverted Head-Shaking Nystagmus in a Patient with Polycythemia Vera / 대한평형의학회지
Journal of the Korean Balance Society
; : 142-146, 2017.
Article
em En
| WPRIM
| ID: wpr-761252
Biblioteca responsável:
WPRO
ABSTRACT
Polycythemia vera (PV) is well known chronic myeloproliferative neoplasm, caused by clonal expansion of an abnormal hematopoietic stem cell. Patients with PV may present diverse neurologic symptoms including headache, dizziness or vertigo, tinnitus. However, the attention has not been directed to the neurootological findings in patients with PV. Here, we present a 71-year-old male patient with PV suffered from vertigo and headache. He demonstrated gaze-evoked nystagmus and perverted head shaking nystagmus. Transcranial Doppler showed decrement of blood flow velocity in posterior circulation. The patient's neuro-otologic findings were normalized as polychethemia and blood flow improved with repetitive phlebotomy and medications such as hydroxyurea and aspirin. Considering the neurological and hemodynamic findings in our patient, the mechanism of vertigo in PV could be explained by central vestibulopathy because of vascular insufficiency rather than peripheral vestibulopathy because of inner ear blood hyperviscosity.
Palavras-chave
Texto completo:
1
Base de dados:
WPRIM
Assunto principal:
Policitemia
/
Policitemia Vera
/
Zumbido
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Velocidade do Fluxo Sanguíneo
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Células-Tronco Hematopoéticas
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Vertigem
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Aspirina
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Flebotomia
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Tontura
/
Cabeça
Limite:
Aged
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Humans
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Male
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article