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Year : 2020  |  Volume : 22  |  Issue : 2  |  Page : 63-68

The efficacy of botulinum toxin injection on adductor spasmodic dysphonia

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
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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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