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疲劳、节段性肌张力障碍、肢体或躯干姿势异常、扭转痉挛、怪异步态、痉挛性斜颈、腱反射亢进、肌张力过高
Dopa-responsive dystonia (Segawa disease, autosomal dominant GTP cyclohydrolase I deficiency) is a childhood-onset dystonia with diurnal fluctuation, progressing to parkinsonism. It classically presents as childhood dystonic gait that worsens as the day advances and shows a dramatic, sustained response to low-dose levodopa. Diagnosis is clinical plus genetic/CSF testing. Treatment: low-dose levodopa gives excellent long-term response, often preventing disability.
Childhood dystonic gait; diurnal fluctuation (worse evening); parkinsonism; dramatic low-dose levodopa response
GTP cyclohydrolase I (TH) deficiency causes striatal dopamine synthesis defect, responsive to low-dose levodopa.
Low-dose levodopa (excellent response); long-term treatment; genetic counseling
Early diagnosis; treat with low-dose levodopa; genetic counseling.
It is recommended to visit the Neurology department; an appointment can be booked on this platform before the visit.
Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.
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