L. Crevierbuchman et al., ADDUCTOR SPASMODIC DYSPHONIA - CASE-REPORTS WITH ACOUSTIC ANALYSIS FOLLOWING BOTULINUM TOXIN INJECTION AND ACUPUNCTURE, Journal of voice, 11(2), 1997, pp. 232-237
We analyzed frequency and duration parameters of voice and speech in t
wo men with adductor spasmodic dysphonia (SD). One was treated with bo
tulinum toxin injection; the other received acupuncture therapy. Impro
vement after acupuncture therapy in terms of standard deviation of fun
damental frequency, acoustic perturbation measurements, durational mea
surements of voice and speech, and spectrographic analysis was compara
ble to the results achieved with botulinum toxin injection. Voice and
speech parameters were stable 1 year after acupuncture therapy.