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Not paralysis, but dystonia causes stridor in multiple system atrophy.
Neurology. 2002 Feb 26; 58(4):649-52.Neur

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.

Authors+Show Affiliations

Spinal and Cranial Reflexes Laboratory, Istituto Neurologico C. Mondino I.R.C.C.S., Università di Pavia, Italy.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

11865150

Citation

Merlo, Ilaria Maria, et al. "Not Paralysis, but Dystonia Causes Stridor in Multiple System Atrophy." Neurology, vol. 58, no. 4, 2002, pp. 649-52.
Merlo IM, Occhini A, Pacchetti C, et al. Not paralysis, but dystonia causes stridor in multiple system atrophy. Neurology. 2002;58(4):649-52.
Merlo, I. M., Occhini, A., Pacchetti, C., & Alfonsi, E. (2002). Not paralysis, but dystonia causes stridor in multiple system atrophy. Neurology, 58(4), 649-52.
Merlo IM, et al. Not Paralysis, but Dystonia Causes Stridor in Multiple System Atrophy. Neurology. 2002 Feb 26;58(4):649-52. PubMed PMID: 11865150.
* Article titles in AMA citation format should be in sentence-case
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 - 2002/2/28/pubmed PY - 2002/4/16/medline PY - 2002/2/28/entrez SP - 649 EP - 52 JF - Neurology JO - Neurology VL - 58 IS - 4 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. SN - 0028-3878 UR - https://www.unboundmedicine.com/medline/citation/11865150/Not_paralysis_but_dystonia_causes_stridor_in_multiple_system_atrophy_ L2 - http://www.neurology.org/cgi/pmidlookup?view=long&pmid=11865150 DB - PRIME DP - Unbound Medicine ER -