Quantitative laryngeal electromyography parameters may correlate with improved outcomes following botulinum toxin injection for spasmodic dysphonia

2020 ◽  
Author(s):  
Christopher D. Dwyer ◽  
Andrée‐Anne Leclerc ◽  
Sanjeev D. Nandedkar ◽  
VyVy N. Young ◽  
Clark A. Rosen
Keyword(s):  
Botulinum Toxin ◽  
Botulinum Toxin Injection ◽  
Spasmodic Dysphonia ◽  
Laryngeal Electromyography ◽  
Improved Outcomes

Adductor spasmodic dysphonia: case reports withacoustic analysis following botulinum toxin injection and acupuncture

1997 ◽  
Vol 11 (2) ◽  
pp. 232-237 ◽  
Author(s):  
Lise Crevier-Buchman ◽  
Ollivier Laccourreye ◽  
Jean-François Papon ◽  
Dominique Nurit ◽  
Daniel Brasnu
Keyword(s):  
Botulinum Toxin ◽  
Case Reports ◽  
Botulinum Toxin Injection ◽  
Spasmodic Dysphonia ◽  
Adductor Spasmodic Dysphonia

scholarly journals Treatment Efficacy of Electromyography versus Fiberscopy-Guided Botulinum Toxin Injection in Adductor Spasmodic Dysphonia Patients: A Prospective Comparative Study

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Jae Wook Kim ◽  
Jae Hong Park ◽  
Ki Nam Park ◽  
Seung Won Lee
Keyword(s):  
Botulinum Toxin ◽  
Treatment Efficacy ◽  
Botulinum Toxin Injection ◽  
Spasmodic Dysphonia ◽  
Total Dosage ◽  
Adductor Spasmodic Dysphonia ◽  
Prospective Comparative Study ◽  
The Mean ◽  
Botulinum Toxin Injections ◽  
The Voice

Introduction. This study prospectively evaluates and compares the treatment efficacy of botulinum toxin injection under electromyography guidance (EMG group) and percutaneous botulinum toxin injection under flexible fiberscopic guidance (fiberscopy group).Methods. Thirty patients with adductor spasmodic dysphonia (ADSD), who had never received treatment, were randomly allocated into EMG- or fiberscopy-guided botulinum toxin injections between March 2008 and February 2010. We assessed acoustic and aerodynamic voice parameters, and the voice handicap index (VHI) before injection and at 1, 3, and 6 months after injection.Results. The mean total dosage of botulinum toxin was similar for both groups: 1.7 ± 0.5 U for the EMG group and 1.8 ± 0.4 U for the fiberscopy group (P>0.05). There were no significant differences in outcomes between the two groups in either the duration of effectiveness or complications such as breathy voice and aspiration.Conclusion. Botulinum toxin injection under fiberscopic guidance is a viable alternative to EMG-guided botulinum toxin injection for the treatment of adductor spasmodic dysphonia when EMG equipment is unavailable.

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