Botulinum Toxin A in the Treatment of Hemifacial Spasm

Symmetry Scale for Hemifacial Spasm

Symmetry Scale for Hemifacial Spasm consists of resting symmetry and symmetry of voluntary movement. Total score =Resting symmetry score + Symmetry of voluntary movement score

Time frame: up to 6 months

Facial Clinimetric Evaluation Scale

Facial Clinimetric Evaluation Scale consists of six parts:facial movement,facial comfort,oral function,eye comfort,lacrimal control and social function. Total score = facial movement + facial comfort + oral function + eye comfort + lacrimal control + social function.

Time frame: up to 6 months

The effective duration of botulinum toxin A

degree of amelioration in spasm and the effective duration of botulinum toxin A

Time frame: up to 6 months

Adverse events

Adverse events, including stiff face, difficulty drinking and eating, difficulty controlling parotid and so on.The onset and duration of adverse events.Whether to take intervention to ameliorate adverse events and the efficacy of the intervention

Time frame: up to 6 months