[Electronystagmographic studies in patients with multiple sclerosis (author's transl)]

Area of Science:

• Neurology
• Ophthalmology
• Vestibular System

Context:

• Multiple sclerosis (MS) is a demyelinating disease affecting the central nervous system.
• Vestibular dysfunction is common in MS, impacting balance and eye movements.
• Clinical neurological examinations may not fully capture the extent of eye movement abnormalities.

Purpose:

• To evaluate the utility of electro-neurography (E.N.G.) with the pendular rotation test in diagnosing nystagmus in multiple sclerosis patients.
• To compare E.N.G. findings with traditional clinical neurological examinations.
• To characterize the types and prevalence of nystagmus in MS.

Summary:

• E.N.G. examination using the pendular rotation test was performed on 200 neurologically assessed multiple sclerosis patients.
• E.N.G. detected nystagmus not identified clinically and detailed various nystagmus components.
• Spontaneous nystagmus in MS is highly variable, frequently presenting as combined types (dissociated abduction and vertical most common).

Impact:

• E.N.G. provides a more comprehensive analysis of nystagmus in MS than clinical examination alone.
• The pendular rotation test is highly effective in identifying central vestibular abnormalities, even in the absence of spontaneous nystagmus.
• Findings enhance understanding of the complex vestibular manifestations of multiple sclerosis.