Electromyography (EMG): pearls

Effects of cold temperature on EMG

• False positive mild demyelination
• False negative anterior horn cell (AHC) disorder
• False negative neuromuscular junction (NMJ) disorder

EMG features in people > 60 years

EMG precautions with anticoagulants

Tarsal tunnel syndrome

Radiculopathies

Abnormal sensory nerve action potentials (SNAPs): causes

Denervation

Thoracic outlet syndrome (TOS): neurophysiological differentials

References

1. Gutman L. Pearls and pitfalls in the use of electromyography and nerve conduction studies. Seminars in Neurology 2003; 23:77-82.
2. Liveson JA. Peripheral Neurology: Case Studies. Third edition. Oxford University press Oxford 2000 p70.
3. Liveson JA. Peripheral Neurology: Case Studies. Third edition. Oxford University press Oxford 2000 p128.
4. Liveson JA. Peripheral Neurology: Case Studies. Third edition. Oxford University press Oxford 2000 p184.
5. Amato A, Russell JA. Neuromuscular disorders. McGraw Hill New York 2008 p385-386.

Related checklists

• Electromyography (EMG): abnormal findings
• Electromyography (EMG): motor and sensory potentials