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Correlation between clinical response and injection quality in treatment of spasmodic dysphonia
1Department of Otolaryngology, Queen Elizabeth Hospital, Birmingham, UK.
The Journal of Laryngology and Otology
|June 1, 1996
Abstract:
Botulinum toxin injection is an effective treatment for spasmodic dysphonia. There are ethical difficulties in performing a controlled placebo trial to assess the effectiveness of this treatment. This paper shows a significantly decreased clinical response following technically poor injections given to patients who respond well to good quality injections.