Electroneuromyography: a modern view on the possibilities of application (literature review)

Relevance. Currently, one of the most informative specific methods for diagnosing damage to the spinal cord and peripheral nervous system is electroneuromyography. This complex electrophysiological method is based on the registration, analysis and evaluation of the obtained potentials that arise during the work of the studied skeletal muscles of the patient during the passage of impulses along the peripheral nerve fibers. A feature of this method is the variety of parameters obtained: from the characteristics of the evoked potential itself - its latent period, shape, amplitude and duration, to obtaining the number of functioning motor units of the muscle fiber, the speed of the impulse of both motor and sensory innervation.The purpose of study. To analyze the current understanding of the possibilities of using the electroneuromyography method in clinical practice.Materials and methods. In the course of this study, an analysis was made of foreign and domestic literature of recent years on the possibility of using the method of electroneuromyography in adult and pediatric neurological practice.Results. The rapid development of electroneuromyography in recent years makes it possible to use two main areas: stimulation electroneuromyography (ENMG) and needle, which is currently mainly used abroad. ENMG is a method that does not require invasive intervention, which allows you to assess the state of the studied nerve in different areas, giving an understanding of the nature of the nerve lesion, as well as the degree of its damage. At the moment, there are clear indications for the use of this particular method in clinical practice, namely for polyneuropathies of any genesis, plexopathies, neuropathies and neuritis of any genesis, neural amyotrophies, tunnel syndromes, myasthenia gravis and osteochondrosis of the spine with radicular syndrome. In turn, needle electroneuromyography is an invasive method, but more accurate and highly informative, allowing to assess the functional state of the peripheral neuromotor apparatus. At the same time, this method allows you to identify the disease at an early stage of development, the localization of the pathology, the nature and degree of activity, as well as to indicate the degree of damage to the muscle fiber and the possibility of its further recovery. It is recommended to use this method as a specific diagnosis of amyotrophic lateral sclerosis, spinal amyotrophy, myotonia, myopathy of various origins, hereditary muscle diseases, paraneoplastic myopathies, and so on.Conclusion. The possibilities of using electroneuromyography currently continue to expand due to the popularity of the method as a diagnostic of the state of the neuromuscular system due to the specificity of indicators, the possibility of diagnosing many diseases at the subclinical stage, the ease of monitoring parameters in dynamics, the possibility of non-invasive use and an accurate assessment of the effectiveness of therapy.