Movement disorders in multiple sclerosis and other demyelinating diseases

Area of Science:

• Neuroimmunology
• Neurology
• Movement Disorders

Background:

• Multiple sclerosis (MS) is an autoimmune inflammatory demyelinating disease of the central nervous system.
• Lesion dissemination in time and space characterizes MS.
• While tremor is common, other movement disorders are less frequently reported in MS.

Purpose of the Study:

• To systematically review and describe movement disorders in multiple sclerosis patients.
• To characterize the relationship between these movement disorders and the underlying demyelinating process.
• To summarize movement disorders reported in other demyelinating diseases.

Main Methods:

• Systematic literature review.
• Analysis of reported movement disorders in multiple sclerosis.
• Review of movement disorders in neuromyelitis optica, acute disseminated encephalomyelitis, and central pontine myelinolysis.

Main Results:

• Tremor is a frequent movement disorder in multiple sclerosis.
• Less common movement disorders include parkinsonism, dystonia, chorea, myoclonus, and others.
• Movement disorders are also reported in other central nervous system demyelinating conditions.

Conclusions:

• Movement disorders are a diverse feature of multiple sclerosis, beyond just tremor.
• Understanding these associations aids in diagnosing and managing central nervous system demyelinating diseases.
• Further research can elucidate the specific pathophysiological links between demyelination and various movement disorders.