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Electromyogram (EMG)

The electromyogram (EMG) monitors the function of the peripheral nerves, i.e. the nerves of the body except those of the brain and spinal cord, and the function of the muscles and the neuromuscular junction, in other words the point where the nerve "joins" the muscle.

For the first time, Electromyographic methods were applied in the USA. Physiatrists and later neurologists also considered this method. Today, EMG is used internationally by some Physiatrists and some Neurologists. It is a purely medical procedure, because at the conclusion of a reliable diagnosis, clinical symptoms must be taken into account.
The usefulness of EMG is important in many diagnostic problems related to the neuromuscular system, but mainly contributes greatly to the differential diagnosis of nerve entrapment (pressure) syndromes and myopathies.

The EMG itself is performed by inserting special thin needle-shaped electrodes into specific muscles, which are selected according to the diagnostic target, and the specialist can tell if there is damage to the muscles themselves or to the nerves.

The nerve conduction studies are performed by applying electrical stimuli to specific points along the peripheral nerves and recording their reaction with surface electrodes on muscles that receive nerve innervation from these nerves. In this manner, it can be clarified whether one or more nerves are affected and where, whether it concerns sensory or motor nerve fibres or both, the extent of the damage and the chances of its recovery.