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Quantitative electromyographic characteristics of idiopathic unilateral vocal fold paralysis.
Laryngoscope. 2016 11; 126(11):E362-E368.L

Abstract

OBJECTIVES/HYPOTHESIS

Unilateral vocal fold paralysis with no preceding causes is diagnosed as idiopathic unilateral vocal fold paralysis. However, comprehensive guidelines for evaluating the defining characteristics of idiopathic unilateral vocal fold paralysis are still lacking. In the present study, we hypothesized that idiopathic unilateral vocal fold paralysis may have different clinical and neurologic characteristics from unilateral vocal fold paralysis caused by surgical trauma.

STUDY DESIGN

Retrospective, case series study.

METHODS

Patients with unilateral vocal fold paralysis were evaluated using quantitative laryngeal electromyography, videolaryngostroboscopy, voice acoustic analysis, the Voice Outcome Survey, and the Short Form-36 Health Survey quality-of-life questionnaire. Patients with idiopathic and iatrogenic vocal fold paralysis were compared.

RESULTS

A total of 124 patients were recruited. Of those, 17 with no definite identified causes after evaluation and follow-up were assigned to the idiopathic group. The remaining 107 patients with surgery-induced vocal fold paralysis were assigned to the iatrogenic group. Patients in the idiopathic group had higher recruitment of the thyroarytenoid-lateral cricoarytenoid muscle complex and better quality of life compared with the iatrogenic group.

CONCLUSION

Idiopathic unilateral vocal fold paralysis has a distinct clinical presentation, with relatively minor denervation changes in the involved laryngeal muscles, and less impact on quality of life compared with iatrogenic vocal fold paralysis.

LEVEL OF EVIDENCE

4. Laryngoscope, 126:E362-E368, 2016.

Authors+Show Affiliations

Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan. Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital at Taipei, Taipei, Taiwan.Department of Otolaryngology Head and Neck Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan. School of Medicine, Chang Gung University, Taoyuan, Taiwan.Department of Otolaryngology Head and Neck Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan. School of Medicine, Chang Gung University, Taoyuan, Taiwan.Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan.Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital at Taoyuan, Taoyuan, Taiwan. School of Medicine, Chang Gung University, Taoyuan, Taiwan.Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan. yspeii@gmail.com. School of Medicine, Chang Gung University, Taoyuan, Taiwan. yspeii@gmail.com. Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan. yspeii@gmail.com.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

27011064

Citation

Chang, Wei-Han, et al. "Quantitative Electromyographic Characteristics of Idiopathic Unilateral Vocal Fold Paralysis." The Laryngoscope, vol. 126, no. 11, 2016, pp. E362-E368.
Chang WH, Fang TJ, Li HY, et al. Quantitative electromyographic characteristics of idiopathic unilateral vocal fold paralysis. Laryngoscope. 2016;126(11):E362-E368.
Chang, W. H., Fang, T. J., Li, H. Y., Jaw, F. S., Wong, A. M., & Pei, Y. C. (2016). Quantitative electromyographic characteristics of idiopathic unilateral vocal fold paralysis. The Laryngoscope, 126(11), E362-E368. https://doi.org/10.1002/lary.25944
Chang WH, et al. Quantitative Electromyographic Characteristics of Idiopathic Unilateral Vocal Fold Paralysis. Laryngoscope. 2016;126(11):E362-E368. PubMed PMID: 27011064.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Quantitative electromyographic characteristics of idiopathic unilateral vocal fold paralysis. AU - Chang,Wei-Han, AU - Fang,Tuan-Jen, AU - Li,Hsueh-Yu, AU - Jaw,Fu-Shan, AU - Wong,Alice M K, AU - Pei,Yu-Cheng, Y1 - 2016/03/24/ PY - 2015/10/16/received PY - 2016/01/19/revised PY - 2016/02/01/accepted PY - 2016/10/25/pubmed PY - 2017/7/28/medline PY - 2016/3/25/entrez KW - Unilateral vocal fold paralysis KW - laryngeal electromyography KW - quantitative electromyography KW - videolaryngostroboscopy KW - vocal cord palsy SP - E362 EP - E368 JF - The Laryngoscope JO - Laryngoscope VL - 126 IS - 11 N2 - OBJECTIVES/HYPOTHESIS: Unilateral vocal fold paralysis with no preceding causes is diagnosed as idiopathic unilateral vocal fold paralysis. However, comprehensive guidelines for evaluating the defining characteristics of idiopathic unilateral vocal fold paralysis are still lacking. In the present study, we hypothesized that idiopathic unilateral vocal fold paralysis may have different clinical and neurologic characteristics from unilateral vocal fold paralysis caused by surgical trauma. STUDY DESIGN: Retrospective, case series study. METHODS: Patients with unilateral vocal fold paralysis were evaluated using quantitative laryngeal electromyography, videolaryngostroboscopy, voice acoustic analysis, the Voice Outcome Survey, and the Short Form-36 Health Survey quality-of-life questionnaire. Patients with idiopathic and iatrogenic vocal fold paralysis were compared. RESULTS: A total of 124 patients were recruited. Of those, 17 with no definite identified causes after evaluation and follow-up were assigned to the idiopathic group. The remaining 107 patients with surgery-induced vocal fold paralysis were assigned to the iatrogenic group. Patients in the idiopathic group had higher recruitment of the thyroarytenoid-lateral cricoarytenoid muscle complex and better quality of life compared with the iatrogenic group. CONCLUSION: Idiopathic unilateral vocal fold paralysis has a distinct clinical presentation, with relatively minor denervation changes in the involved laryngeal muscles, and less impact on quality of life compared with iatrogenic vocal fold paralysis. LEVEL OF EVIDENCE: 4. Laryngoscope, 126:E362-E368, 2016. SN - 1531-4995 UR - https://www.unboundmedicine.com/medline/citation/27011064/Quantitative_electromyographic_characteristics_of_idiopathic_unilateral_vocal_fold_paralysis_ L2 - https://doi.org/10.1002/lary.25944 DB - PRIME DP - Unbound Medicine ER -