Electromyogram

This is a diagnostic examination that complements the clinical examination and laboratory investigation. Measuring the velocity of nerve conduction (electroneurogram) and the electromyogram assess disorders/lesions of the nerves and/or muscles. The usual symptoms that lead to performing an electromyogram are numbing, muscular weakness, involuntary muscle contractions, etc. Conditions that might lead to the symptoms above and can be assessed with electromyography are peripheral nerve neural network diseases of any aetiology, radiculopathy, etc.

The examination uses electrode leads attached to the scalp to record brain electrical/electric activity. Electromyograms are also used to diagnose and monitor epilepsy and other focal or diffuse brain lesions. It is part of the investigation of conditions leading to loss of consciousness, dizziness, memory disorders, etc.