Movement disorder involve recurring or constant muscle contractions causing squeezing or twisting movement, such as hemifacial spasm, blepharospasm, cervical dystonias etc. The most common focal dystonia was cervical dystonia in western countries according to previous studies, which is different from China in Chinese neurologists' opinion. And there is no such survey. So the investigators are conducting a movement disorder survey in east China to confirm it.
Study Type
OBSERVATIONAL
Enrollment
1,600
Sir Run Run Shaw Hospital
Hangzhou, Zhejiang, China
Number of participants with primary dystonia
It is Cross-Sectional, service-based survey to study the primary dystonina prevalence in east China.
Time frame: half year
Number of participants with hemifacial spasm
It is a Cross-Sectional survey to study the prevalence of hemifacial spasm in movement disorder of east China.
Time frame: half year
Number of participants with blepharospasm
It is a Cross-Sectional survey to study the prevalence of blepharospasm in movement disorder of east China.
Time frame: half year
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