Clinical Nerve Conduction and Needle Electromyography Studies
| Autor: | Donald H. Lee, Gwendolyn C Claussen, Shin Oh |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Neural Conduction
medicine.diagnostic_test Electromyography business.industry Action Potentials Peripheral Nervous System Diseases Physical examination Sensory system Anatomy medicine.disease Synaptic Transmission Nerve conduction velocity medicine.anatomical_structure Peripheral nervous system Peripheral Nervous System medicine Nerve conduction study Humans Orthopedics and Sports Medicine Surgery business Polyneuropathy |
| Zdroj: | Journal of the American Academy of Orthopaedic Surgeons. 12:276-287 |
| ISSN: | 1067-151X |
| Popis: | The electrodiagnostic study, consisting of nerve conduction studies and needle electromyography, is a useful adjunct to the clinical examination of the peripheral nervous system. The three types of nerve conduction study are motor, sensory, and mixed, of which motor is the least sensitive. Electromyography records the intrinsic electrical activity of muscle fibers, thus providing the physiologic status of muscle function. To interpret the electrodiagnostic study results, the clinician must understand the anatomic and physiologic basis of the studies. Peripheral nerve entrapment initially results in focal demyelination; thus, nerve conduction velocity slows across the site. However, with radiculopathy and nerve root compression, the nerve conduction study may be normal. Both nerve trauma and polyneuropathy show marked differences in their effect on the results of electrodiagnostic studies. |
| Databáze: | OpenAIRE |
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