The Electrodiagnosis

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The Electrodiagnosis is a set of auxiliary diagnostic tools using various electromagnetic techniques to evaluate neurological or neuro-muscular function/dysfunction of the patients. These diagnostic tools include:

1. Needle electromyography (EMG)
2. Nerve conduction study (NCS)
3. Motor evoke potentials (MEP)
4. Somatosensory evoke potentials (SSEP)

Patients with conditions such as bleeding tendency (e.g. hemophilia or under anticoagulation therapy), immunocompromised status, systemic infection, or valvular heart disease(including that post-valvular replacement surgery) should be further evaluated before the test. After needle electromyography examination, wounds from needle insertion might cause some minor bleeding or ecchymosis, yet the condition is limited and would recover after ice-packing and proper care. All the procedures are performed by PM & R attending doctors or supervised residents. The total examination process takes about a half to 2 hours, depending on the patient¡¦s condition and test difference.