Updated in 1/28/2011 11:15:54 AM      Viewed: 594 times      (Journal Article)
Journal of voice : official journal of the Voice Foundation 25 (1): 114-9 (2011)

Interarytenoid muscle botox injection for treatment of adductor spasmodic dysphonia with vocal tremor.

Katherine A Kendall , Rebecca J Leonard
Up to one-third of patients presenting with adductor spasmodic dysphonia will have an associated vocal tremor. These patients may not respond fully to treatment using thyroarytenoid (TA) muscle botulinum toxin (Botox) injection. Treatment failures are attributed to the involvement of multiple muscle groups in the tremor. This study evaluates the results of combined interarytenoid (IA) and TA muscle Botox injection in a group of 27 patients with adductor spasmodic dysphonia and vocal tremor and in four patients with severe vocal tremor alone.
DOI: 10.1016/j.jvoice.2009.08.003      ISSN: 0892-1997