the results indicate that in surgically-induced endolymphatic hydrops , cochlear and vestibular changes occur similar to those observed clinically in meniere 's disease : fluctuant threshold shifts , threshold elevation at low frequencies , sensorineural loss at all frequencies with recruitment , increase in the ratio of summating potential to compound action potential ( sp/cap ) , asymmetry and recruitment in the eng , and increased vestibular excitability , with occasional post-rotational and spontaneous nystagmus .
C0206586
endolymphatic hydrops
C0025281
meniere 's disease