Abductor laryngeal dystonia: A series treated with botulinum toxin
Open Access
- 1 February 1992
- journal article
- Published by Wiley in The Laryngoscope
- Vol. 102 (2), 163-167
- https://doi.org/10.1288/00005537-199202000-00011
Abstract
Abductor laryngeal dystonia (LD) is characterized by a hoarse voice quality which is broken up by breathy or whispered portions. Botulinum toxin injection (Botox) has been a safe and effective treatment for adductor laryngeal dystonia and is currently accepted medical therapy. As an extension of the established treatment program, in 1989 treatment of abductor LD was initiated. Thirty-two patients have been treated by sequential percutaneous electromyogram-guided (EMG) injections of the posterior cricoarytenoid (PCA) muscles. Most patients required treatment of both PCA muscles and improved to an average of 70% of normal voice. Patients who had a preexisting tremor, evidence of dystonia in other muscle groups, vocal tremor, or respiratory dysrhythmia had less improvement. Ten patients also required injection of the cricothyroid muscles and/or type I laryngoplasty.Keywords
This publication has 8 references indexed in Scilit:
- Laryngeal Dystonia: A Series with Botulinum Toxin TherapyAnnals of Otology, Rhinology & Laryngology, 1991
- Use of flexible fiberoptic laryngoscopy to assess patients with spasmodic dysphoniaJournal of Voice, 1991
- Effects of botulinum toxin injections on speech in adductor spasmodic dysphoniaNeurology, 1988
- Localized injections of botulinum toxin for the treatment of focal laryngeal dystonia (spastic dysphonia)The Laryngoscope, 1988
- The Use of Perceptual Methods by New Clinicians for Assessing Voice QualityJournal of Speech and Hearing Disorders, 1986
- Spastic dysphonia: A continuum disorderJournal of Communication Disorders, 1981
- Adductor Spastic Dysphonia as a Sign of Essential (Voice) TremorJournal of Speech and Hearing Disorders, 1981
- Study of Spastic Dysphonia Using Videofiberoptic LaryngoscopyAnnals of Otology, Rhinology & Laryngology, 1978