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Electrodiagnostic evaluation of compressive nerve injuries of the upper extremities. 2012

Mitchell Freedman, and Garett Helber, and Jason Pothast, and T G Shahwan, and Jeremy Simon, and Liane Sher
Rothman Institute, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA. lm5656@comcast.net

Electrodiagnostic testing includes electromyography and nerve conduction studies that are physiologic tests used in the diagnosis of peripheral nerve injuries. It is a supplement rather than a replacement for a physical examination. This article reviews the terminology as well as the findings seen and used in electrodiagnostic studies. Common compression nerve injuries including the median, ulnar, radial, axillary, and suprascapular nerves and their electrical findings are reviewed.

UI MeSH Term Description Entries
D009408 Nerve Compression Syndromes Mechanical compression of nerves or nerve roots from internal or external causes. These may result in a conduction block to nerve impulses (due to MYELIN SHEATH dysfunction) or axonal loss. The nerve and nerve sheath injuries may be caused by ISCHEMIA; INFLAMMATION; or a direct mechanical effect. Entrapment Neuropathies,Nerve Entrapments,External Nerve Compression Syndromes,Internal Nerve Compression Syndromes,Nerve Compression Syndromes, External,Nerve Compression Syndromes, Internal,Compression Syndrome, Nerve,Compression Syndromes, Nerve,Entrapment, Nerve,Entrapments, Nerve,Nerve Compression Syndrome,Nerve Entrapment,Neuropathies, Entrapment,Neuropathy, Entrapment,Syndrome, Nerve Compression,Syndromes, Nerve Compression
D009431 Neural Conduction The propagation of the NERVE IMPULSE along the nerve away from the site of an excitation stimulus. Nerve Conduction,Conduction, Nerve,Conduction, Neural,Conductions, Nerve,Conductions, Neural,Nerve Conductions,Neural Conductions
D009460 Neurologic Examination Assessment of sensory and motor responses and reflexes that is used to determine impairment of the nervous system. Examination, Neurologic,Neurological Examination,Examination, Neurological,Examinations, Neurologic,Examinations, Neurological,Neurologic Examinations,Neurological Examinations
D011379 Prognosis A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations. Prognostic Factor,Prognostic Factors,Factor, Prognostic,Factors, Prognostic,Prognoses
D004576 Electromyography Recording of the changes in electric potential of muscle by means of surface or needle electrodes. Electromyogram,Surface Electromyography,Electromyograms,Electromyographies,Electromyographies, Surface,Electromyography, Surface,Surface Electromyographies
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012720 Severity of Illness Index Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder. Illness Index Severities,Illness Index Severity
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor
D017933 Peripheral Nervous System The nervous system outside of the brain and spinal cord. The peripheral nervous system has autonomic and somatic divisions. The autonomic nervous system includes the enteric, parasympathetic, and sympathetic subdivisions. The somatic nervous system includes the cranial and spinal nerves and their ganglia and the peripheral sensory receptors. Nervous System, Peripheral,Nervous Systems, Peripheral,Peripheral Nervous Systems,System, Peripheral Nervous,Systems, Peripheral Nervous
D020422 Mononeuropathies Disease or trauma involving a single peripheral nerve in isolation, or out of proportion to evidence of diffuse peripheral nerve dysfunction. Mononeuropathy multiplex refers to a condition characterized by multiple isolated nerve injuries. Mononeuropathies may result from a wide variety of causes, including ISCHEMIA; traumatic injury; compression; CONNECTIVE TISSUE DISEASES; CUMULATIVE TRAUMA DISORDERS; and other conditions. Mononeuritis,Mononeuropathy Multiplex,Mononeuritis Multiplex,Mononeuropathy Multiplex Syndrome,Mononeuritides,Mononeuropathy,Mononeuropathy Multiplex Syndromes,Syndrome, Mononeuropathy Multiplex,Syndromes, Mononeuropathy Multiplex

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