Elektromyography in Impaired Motility of the VocalCords

Czech version

Authors: J. Dršata; M. Kučera; M. Schreiber; I. Nováková
Authors‘ workplace: Klinika otorinolaryngologie a chirurgie hlavy a krku LF UK a FN, Hradec Králové, přednosta doc. MUDr. J. Vokurka, CSc. Neurologická klinika LF UK a FN, Hradec Králové, přednosta doc. MUDr. G. Waberžinek, CSc.
Published in: Otorinolaryngol Foniatr, , 2001, No. 2, pp. 120-123.
Category:

Overview

Laryngeal electromyography (LEMG) is a method used in differential diagnostics of vocalcord motility disorders. Among other LEMG techniques the percutaneous LEMG is probably themost widely used one. Six patients investigated in 2000 at the NET Dept., University Hospital inHradec Králové, Czech Republic, are discussed. The neural lesion is characterized by denervationof MUP. LEMG provides the assessment of the site of the neural lesion and the extent of the lesion.LEMG is also suitable for evaluation of latent paresis of the recurrent laryngeal nerve. Idiopathicdenervation and/or central vocal cord motility disorders should be investigated by a neurologist.Forecast of neural laryngeal lesions by LEMG is possible, LEMG can also follow up the lesion. LEMGis limited by the patient’s ability of collaboration and the experience of the investigating physician.Complications include bleeding, oedema or haematoma, the investigation is nevertheless consideredsafe. LEMG is an important investigation method especially in the detailed differential diagnosticsof vocal cord motility disorders and for assessment of the prognosis of vocal cord paresis.

Key words:
electromyography, vocal cord, paresis.

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