Miller Fisher Syndrome (Fisher Syndrome)

What is Miller Fisher Syndrome?

Miller Fisher syndrome is a rare, acquired nerve disease that is considered to be a variant of Guillain-Barré syndrome. It is characterised by abnormal muscle coordination, paralysis of the eye muscles, and absence of the tendon reflexes. Like Guillain-Barré syndrome, symptoms may be preceded by a viral illness. Additional symptoms include generalised muscle weakness and respiratory failure. The majority of individuals with Miller Fisher syndrome have a unique antibody that characterises the disorder.

Is there any treatment?

Treatment for Miller Fisher syndrome is identical to treatment for Guillain-Barré syndrome: intravenous immunoglobulin (IVIg) or plasmapheresis (a procedure in which antibodies are removed from the blood) and supportive care.

What is the prognosis?

The prognosis for most individuals with Miller Fisher syndrome is good. In most cases, recovery begins within 2 to 4 weeks of the onset of symptoms, and may be almost complete within 6 months. Some individuals are left with residual deficits. Relapses may occur rarely (in less than 3 percent of cases).

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