Primary position upbeat nystagmus. (CROSBI ID 198132)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Adamec, Ivan ; Gabelić, Tereza ; Krbot, Magdalena ; Ozretić, David ; Milivojević, Iva ; Habek, Mario.
engleski
Primary position upbeat nystagmus.
Primary position upbeat nystagmus is a rare clinical finding. We report a patient with clinically isolated syndrome suggestive of multiple sclerosis who presented with primary position upbeat nystagmus. MRI revealed a demyelinating lesion in the lower medulla, which affected the nucleus intercalatus ; this type of lesion inhibits the flocculovestibular inhibitory pathway, thereby causing upbeat nystagmus. Nystagmus still persisted after pulsed corticosteroid therapy. This could be due to a loss of central adaptation of the vestibulo-ocular system in our patient, because of more diffuse brainstem damage, shown on vestibular-evoked myogenic potentials as delayed latencies on both sternocleidomastoid muscles and a conduction block for the left extraocular muscles.
Clinically isolated syndrome; Nucleus intercalates; Primary position upbeat nystagmus; VEMP
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
19 (1)
2012.
161-162
objavljeno
0967-5868
10.1016/j.jocn.2011.05.028
Povezanost rada
Kliničke medicinske znanosti