Dr. Raffaello BonacchiNeurologist · Neuroradiologist IT

Electromyography (EMG) and nerve conduction studies

Electromyography is a neurophysiological test that studies how the peripheral nerves and muscles work. It usually has two parts: the study of nerve conduction (nerve conduction studies) and the examination of muscles with a fine needle.

What it is used for

  • carpal tunnel syndrome and other nerve compressions;
  • tingling and paresthesia in the hands and feet, polyneuropathies;
  • cervical and lumbar radiculopathies (sciatica, cervical radicular pain);
  • muscle weakness, cramps and muscle diseases;
  • nerve injuries after trauma.

How it is performed

Nerve conduction studies use small electrical stimuli on the skin, felt as brief shocks. The muscle examination involves inserting a very fine needle to record muscle activity. The test is well tolerated, usually takes 20–40 minutes and needs no special preparation: skin should be clean and free of creams, and please report any anticoagulant therapy.

The test as part of the visit

Electromyography is most useful when guided by the clinical assessment: the neurologist chooses which nerves and muscles to study based on the symptoms and interprets the results together with the physical examination.

Where

Assessments and consultations in Milan, Osio Sotto (Bergamo) and Pistoia. To find out where each test is available and to book, see MioDottore or write to studio@drbonacchi.it.

The information on this page is for general information only and does not replace a medical visit. For sudden or severe symptoms call 112 or go to the Emergency Department.