Treatment efficacy of electromyography versus fiberscopy-guided botulinum toxin injection in adductor spasmodic dysphonia patients: a prospective comparative study
- Abstract
- 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.
- All Author(s)
- J. W. Kim
; J. H. Park
; K. N. Park
; S. W. Lee
- Issued Date
- 2014
- Type
- Article
- Publisher
- Hindawi Publishing Corporation
- ISSN
- 2356-6140
; 1537-744x
- Citation Title
- TheScientificWorldJournal
- Citation Volume
- 2014
- Citation Start Page
- 327928
- Citation End Page
- 327928
- Language(ISO)
- eng
- DOI
- 10.1155/2014/327928
- URI
- http://schca-ir.schmc.ac.kr/handle/2022.oak/2135
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