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Tracheostomy abolishes paradoxical activation of the vocal cord adductor in multiple system atrophy.
Auris Nasus Larynx. 2006 Sep; 33(3):295-8.AN

Abstract

OBJECTIVES

Inspiratory activation of the vocal cord adductor, which causes paradoxical vocal cord motion, develops in patients with multiple system atrophy (MSA). To confirm the hypothesis that airway reflexes trigger such paradoxical activation, we investigated the effects of tracheostomy on the adductor activation in a MSA patient.

METHODS

We compared the adductor electromyograms before and after breathing was diverted to a tracheostoma under propofol anesthesia.

RESULTS

The adductor inspiratory activation disappeared during tracheostoma breathing.

CONCLUSION

Airway reflexes as well as MSA-related damage to the respiratory center contribute to the generation of paradoxical adductor activation in MSA patients.

Authors+Show Affiliations

Department of Otolaryngology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chiba City, Chiba 260-8670, Japan. shibak1963@yahoo.co.jpNo affiliation info available

Pub Type(s)

Case Reports
Comparative Study
Journal Article

Language

eng

PubMed ID

16406427

Citation

Shiba, Keisuke, and Shiroh Isono. "Tracheostomy Abolishes Paradoxical Activation of the Vocal Cord Adductor in Multiple System Atrophy." Auris, Nasus, Larynx, vol. 33, no. 3, 2006, pp. 295-8.
Shiba K, Isono S. Tracheostomy abolishes paradoxical activation of the vocal cord adductor in multiple system atrophy. Auris Nasus Larynx. 2006;33(3):295-8.
Shiba, K., & Isono, S. (2006). Tracheostomy abolishes paradoxical activation of the vocal cord adductor in multiple system atrophy. Auris, Nasus, Larynx, 33(3), 295-8.
Shiba K, Isono S. Tracheostomy Abolishes Paradoxical Activation of the Vocal Cord Adductor in Multiple System Atrophy. Auris Nasus Larynx. 2006;33(3):295-8. PubMed PMID: 16406427.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Tracheostomy abolishes paradoxical activation of the vocal cord adductor in multiple system atrophy. AU - Shiba,Keisuke, AU - Isono,Shiroh, Y1 - 2006/01/06/ PY - 2005/08/18/received PY - 2005/09/28/revised PY - 2005/11/11/accepted PY - 2006/1/13/pubmed PY - 2008/3/7/medline PY - 2006/1/13/entrez SP - 295 EP - 8 JF - Auris, nasus, larynx JO - Auris Nasus Larynx VL - 33 IS - 3 N2 - OBJECTIVES: Inspiratory activation of the vocal cord adductor, which causes paradoxical vocal cord motion, develops in patients with multiple system atrophy (MSA). To confirm the hypothesis that airway reflexes trigger such paradoxical activation, we investigated the effects of tracheostomy on the adductor activation in a MSA patient. METHODS: We compared the adductor electromyograms before and after breathing was diverted to a tracheostoma under propofol anesthesia. RESULTS: The adductor inspiratory activation disappeared during tracheostoma breathing. CONCLUSION: Airway reflexes as well as MSA-related damage to the respiratory center contribute to the generation of paradoxical adductor activation in MSA patients. SN - 0385-8146 UR - https://www.unboundmedicine.com/medline/citation/16406427/Tracheostomy_abolishes_paradoxical_activation_of_the_vocal_cord_adductor_in_multiple_system_atrophy_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0385-8146(05)00194-X DB - PRIME DP - Unbound Medicine ER -