Abstract
Electromyography (EMG) was performed in 10 patients with multiple system atrophy, laryngeal or pharyngeal symptoms, or both. In patients with stridor, EMG during quiet breathing revealed persistent tonic activity in both abductor and adductor vocal cord muscles. In patients with dysphagia, the cricopharyngeal muscle showed persistent EMG activity throughout all phases of swallowing. Botulinum toxin injection into the adductor muscle determined subjective improvement and reduced tonic EMG activity. Therefore, the cause of stridor in multiple system atrophy is dystonia of the vocal cords.
| Original language | English |
|---|---|
| Pages (from-to) | 649-652 |
| Number of pages | 4 |
| Journal | Neurology |
| Volume | 58 |
| Issue number | 4 |
| Publication status | Published - Feb 26 2002 |
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ASJC Scopus subject areas
- Neuroscience(all)
Cite this
Not paralysis, but dystonia causes stridor in multiple system atrophy. / Merlo, Ilaria Maria; Occhini, Antonio; Pacchetti, Claudio; Alfonsi, Enrico.
In: Neurology, Vol. 58, No. 4, 26.02.2002, p. 649-652.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Not paralysis, but dystonia causes stridor in multiple system atrophy
AU - Merlo, Ilaria Maria
AU - Occhini, Antonio
AU - Pacchetti, Claudio
AU - Alfonsi, Enrico
PY - 2002/2/26
Y1 - 2002/2/26
N2 - Electromyography (EMG) was performed in 10 patients with multiple system atrophy, laryngeal or pharyngeal symptoms, or both. In patients with stridor, EMG during quiet breathing revealed persistent tonic activity in both abductor and adductor vocal cord muscles. In patients with dysphagia, the cricopharyngeal muscle showed persistent EMG activity throughout all phases of swallowing. Botulinum toxin injection into the adductor muscle determined subjective improvement and reduced tonic EMG activity. Therefore, the cause of stridor in multiple system atrophy is dystonia of the vocal cords.
AB - Electromyography (EMG) was performed in 10 patients with multiple system atrophy, laryngeal or pharyngeal symptoms, or both. In patients with stridor, EMG during quiet breathing revealed persistent tonic activity in both abductor and adductor vocal cord muscles. In patients with dysphagia, the cricopharyngeal muscle showed persistent EMG activity throughout all phases of swallowing. Botulinum toxin injection into the adductor muscle determined subjective improvement and reduced tonic EMG activity. Therefore, the cause of stridor in multiple system atrophy is dystonia of the vocal cords.
UR - http://www.scopus.com/inward/record.url?scp=0037176811&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037176811&partnerID=8YFLogxK
M3 - Article
C2 - 11865150
AN - SCOPUS:0037176811
VL - 58
SP - 649
EP - 652
JO - Neurology
JF - Neurology
SN - 0028-3878
IS - 4
ER -