Spasmodic dysphonia
| Classification according to ICD-10 | |
|---|---|
| G24.8 | Other dystonia
|
| R49.0 | Dysphonia |
| ICD-10 online (WHO version 2019) | |
The spasmodic dysphonia , including laryngeal dystonia called speech or spasm, is a neurological disorder in the form of circle of dystonia . There are two different forms: the adductor type (this is accompanied by a pressed voice and with pauses and breaks in the voice formation), and the less common abductor type (which is characterized by whispering with a tendency to dwindle speaking).
The causes of this condition are not known.
Diagnosis
In addition to video laryngoscopy with stroboscopy with auditory voice assessment, an EMG of the laryngeal muscles ( vocalis muscle ) is decisive for the diagnosis.
therapy
Spasmodic dysphonia has been treated with botulinum toxin injections since the early 1990s . The injections must be repeated at individual intervals. If there is additional functional overlap, voice therapy (e.g. with a speech therapist ) is supportive.
literature
- P. Zwirner, T. Murry, GE Woodson: Perceptual acoustic relationships in spasmodic dysphonia. In: J Voice. 1993 Jun; 7 (2), pp. 165-171.
- C. Schwemmle, M. Ptok: The treatment of laryngeal movement disorders with botulinum toxins. In: ENT. Volume 55 Part 1: (5), pp. 399-402 and Part 2 (6), pp. 485-488. doi: 10.1007 / s00106-007-1553-5
- NG De Biase, GP Korn, P. Lorenzon, M. Padovani, M. Moraes, G. Madazio, LC Vilanova: Dysphonia Severity Degree and Phonation Onset Latency in Laryngeal Adductor Dystonia. In: J Voice. 2010 Jul; 24 (4), pp. 406-409. doi: 10.1016 / j.jvoice.2008.10.012 .
- T. Upile, B. Elmiyeh, W. Jerjes, V. Prasad, P. Kafas, J. Abiola, B. Youl, R. Epstein, C. Hopper, H. Sudhoff, J. Rubin: Unilateral versus bilateral thyroarytenoid botulinum toxin injections in adductor spasmodic dysphonia: a prospective study. In: Head Face Med. 2009 Oct 24; 5, p. 20.
