Dopamine-responsive dystonia

Dopamine-responsive dystonia
Other namesSegawa syndrome, Segawa's disease, Segawa's dystonia, hereditary progressive dystonia with diurnal fluctuation
SpecialtyNeurology, medical genetics

Dopamine-responsive dystonia (DRD) also known as Segawa syndrome (SS), is a genetic movement disorder which usually manifests itself during early childhood at around ages 5–8 years (variable start age).

Characteristic symptoms are increased muscle tone (dystonia, such as clubfoot) and Parkinsonian features, typically absent in the morning or after rest but worsening during the day and with exertion. Children with dopamine-responsive dystonia are often misdiagnosed as having cerebral palsy. The disorder responds well to treatment with levodopa.


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