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Role of electromyography in the diagnosis of motor neuron disorders
1Neuromuscular Unit, Medical Research Centre, Polish Academy of Sciences, Warsaw.
Abstract:
Programming of electromyographic examination in motor neuron diseases is discussed taking into account application of appropriate techniques. The difficulties of correct interpretation of results are stressed. The stages of disintegration and reintegration of affected motor units are described as well as compensatory changes of surviving motor units. A detailed description of EMG dynamics of amyotrophic lateral sclerosis, late post-polio syndrome and of childhood spinal muscular atrophy is given.