[Vestibular neuronitis: pathophysiology, diagnosis and treatment].

Vestibular neuritis (VN) is one of the most common causes of peripheral vertigo. Caloric testing has been the traditional gold standard for detecting a peripheral vestibular deficit, but some recently developed bedside tests (head thrust, head heave, head shake and vibration test) were evaluated as a good alternative with similar sensitivity and specificity. These tests have shown both diagnostic value in the short term and prognostic value in the long term, and have availability and ease of use as an advantage.

Ocular and cervical vestibular evoked myogenic potentials in patients with multiple sclerosis.

Objectives: The aim of this study was to evaluate latencies and corrected p13-n23 cervical vestibular evoked myogenic potentials (cVEMP) and n10-p13 ocular vestibular evoked myogenic potentials (oVEMP) amplitudes in patients with relapsing remitting multiple sclerosis (MS).

Methods: This was a prospective, case-control study. Thirty patients with MS and 15 healthy controls were included.

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.