Voice Handicap Index and Voice-related Quality of Life after Botulinum Toxin Injection for Spasmodic Dysphonia Patients
Journal Title: INTERNATIONAL JOURNAL OF SCIENTIFIC STUDY - Year 2018, Vol 6, Issue 6
Abstract
Background: Spasmodic dysphonia (SD) is not an uncommon voice disorder defined as a condition of uncertain etiology with uncontrolled, intermittent, and speech induced spasms of intrinsic muscles of the larynx resulting in strangled, strained, and breathy voice commonly seen in women. Botulinum injection into the thyroarytenoid muscle is the standard treatment in controlling the disorder. Surgical procedures include unilateral sectioning of recurrent laryngeal nerve and partial thyroarytenoid resection. Speech therapy is good in mild cases bit not in moderate and severe cases. Aim of the Study: The aim of the study was to determine the effect of botulinum toxin type A injections for adductor type of SD on the duration of benefit, perceived voice-related quality of life (V-RQOL). Materials and Methods: A total of 46 patients treated with botulinum Toxin A injected into thyroarytenoid muscles on both sides were selected. Pre- and post-treatment subjective assessment was done by V-RQOL scoring and during the follow-up for 18 months done. Observations and Results: There was an improvement after injection in the quality of life as indicated by the V-RQOL evaluation. The mean period of remission from dysphonia was 9.30 ± 1.75. Conclusions: Botulinum is effective in giving a 65–100% VRQOL to the patients with SD. Percutaneous route of injection showed statistically significant results and better acceptance than intraoral route. Results suggested significant effects on participants’ perceived quality of life and acoustic variables, over time, for all participants.
Authors and Affiliations
B Vijaykumar, M Ravi Kumar
Keywords
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