| ORIGINAL ARTICLE |
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| Year : 2020 | Volume
: 22
| Issue : 2 | Page : 63-68 |
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The efficacy of botulinum toxin injection on adductor spasmodic dysphonia
Hatem Ezzeldin1, Gamal Youssef2
1 ENT Department, Faculty of Medicine, Sohag University, Egypt
2 ENT Department, Faculty of Medicine, Alexandria University, Alexandria, Egypt
Correspondence Address:
Prof. Hatem Ezzeldin
ENT Department, Faculty of Medicine, Suhag University, Sohag
Egypt
 Source of Support: None, Conflict of Interest: None
DOI: 10.4103/SJOH.SJOH_11_20
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Background: Adductor spasmodic dysphonia (ASD) is a voice disorder characterized by strained, stuttering-like voice (involuntary disruptions of voice). Botulinum toxin (BT) injection of the vocal folds (VFs) is the treatment of choice, however, the doses and method of injection are variable. Objectives: The aim of this study is to assess the effect of BT injection on the voices of the patients having ASD. Patients and Methods: Twelve patients with ASD treated bilaterally with VF BT injection in the office under local anesthesia. Each patient evaluated by laryngoscopic examination, acoustic analysis, and voice handicap index. Results: All patients improved markedly regarding laryngoscopic, acoustic, and self-assessment parameters. Conclusion: BT can be used effectively for the treatment of ASD and improving phonatory (voice) and quality of patients' life.
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