Botulinum Toxin Injections Into the Lateral Cricoarytenoid Muscles for Vocal Process Granuloma

Publication date: Available online 1 August 2017
Source:Journal of Voice
Author(s): Q. Pham, R. Campbell, J. Mattioni, R. Sataloff
ObjectiveContact granulomas are benign, exophytic inflammatory lesions of the larynx that typically arise on or near the vocal process of the arytenoid cartilage. The most common management options include voice therapy and antireflux pharmacotherapy, intralesional steroid injections, botulinum toxin injections, and surgical excision. In-office Botox injection into the lateral cricoarytenoid (LCA) muscle can be effective even for recurrent granulomas.Study DesignThis is a retrospective chart review and literature review.MethodWe reviewed more than 400 charts and included two patients, who underwent in-office injection with botulinum toxin A into LCA muscles bilaterally, after previously failing both conservative and surgical management.ResultsBoth cases showed significant improvement of the laryngeal granulomas after 6 months and a single botulinum toxin injection. Both cases were initially grade III granuloma that improved to grade I.ConclusionsIn-office injection of botulinum toxin A targeting the LCA muscle appears to be a safe and effective treatment modality in refractory laryngeal granuloma.



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