The course of cervical dystonia and patient satisfaction with long-term botulinum toxin A treatment.

• Skogseid Eur J Neurol. 2005

• 67% of the patients were characterized as having a good effect, and

• 33% an unsatisfactory effect.

• This outcome (good or unsatisfactory effect) was independent of the severity of head deviation or complexity pattern of CD prior to treatment, the delay from onset to start of BTX treatment, or the number of treatments.

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