The three-year study included 36 people with spasmodic dysphonia. They were treated with Botox injections up to six times. All the patients showed dramatic improvement on the voice-related quality of life (V-RQOL) scale.
The findings appear in the April issue of the Archives of Otolaryngology, Head and Neck Surgery.
This is the first study to offer long-term data on how repeated Botox injections affect the voices of people with spasmodic dysphonia, along with their emotional, social and physical functioning.
For years, Botox has been used off-label to treat people with spasmodic dysphonia. This rare and often-misdiagnosed disorder causes a person's voice to sound strained, broken or breathy. Botox injections relax the vocal cord muscles. - (HealthDayNews)