Format

Send to

Choose Destination
Eur Ann Otorhinolaryngol Head Neck Dis. 2017 Feb;134(1):13-18. doi: 10.1016/j.anorl.2016.09.006. Epub 2016 Oct 5.

Diagnostic and prognostic contribution of laryngeal electromyography in unilateral vocal-fold immobility in adults.

Author information

1
CHU de Nantes, Service d'ORL et Chirurgie Cervico-Faciale, 1, place Alexis-Ricordeau, 44093 Nantes cedex 1, France.
2
CHU de Nantes, Service d'Explorations Fonctionnelles Neurologiques, 1, place Alexis-Ricordeau, 44093 Nantes cedex 1, France.
3
CHU de Nantes, Service d'ORL et Chirurgie Cervico-Faciale, 1, place Alexis-Ricordeau, 44093 Nantes cedex 1, France. Electronic address: florent.espitalier@chu-nantes.fr.

Abstract

OBJECTIVES:

To study the diagnostic and prognostic contribution of laryngeal electromyography in unilateral vocal-fold immobility in adults.

MATERIAL AND METHODS:

A retrospective study included patients with unilateral vocal-fold immobility undergoing laryngeal electromyography between 2007 and 2015. Neurogenic, normal or myogenic findings were compared to the clinical aspect. Prognosis for recovery was assessed from motor unit potentials on laryngeal electromyography, and compared to subsequent progress on laryngoscopy.

RESULTS:

Sixty-three patients (mean age, 59 years) were initially included; 2 were subsequently excluded from analysis. Mean time from onset of immobility to laryngeal electromyography was 7 months. 85% of the 61 patients showed neurogenic findings, indicating neural lesion; 13% showed normal electromyography, indicating cricoarytenoid joint ankylosis; and 1 patient showed a myogenic pattern. Neurogenic cases were usually secondary to cervical surgery. Thirty-eight patients were followed up. In total, 75% of patients showing reinnervation potentials recovered. The positive predictive value of laryngeal electromyography was 69.2%.

CONCLUSION:

Laryngeal electromyography is effective in specifying the origin of unilateral vocal-fold immobility in adults. It also has a prognostic role, lack of reinnervation potentials being a possible indication for early medialization surgery.

KEYWORDS:

Cricoarytenoid joint ankylosis; Laryngeal electromyography; Motor unit potentials; Vocal-fold palsy

PMID:
27720373
DOI:
10.1016/j.anorl.2016.09.006
[Indexed for MEDLINE]
Free full text

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center