Distal median neuropathy is the most common entrapment neuropathy affecting the upper extremity. Usually, the site of compression occurs in the wrist as the nerve passes under the flexor reticulatinum in the carpal tunnel. Rarely, pathology can occur more distally in the palm. Patients who have distal median neuropathy most often develop carpal tunnel syndrome (CTS), one of the most characteristic nerve entrapment syndromes. However, lesions of the proximal median nerve, brachial plexus, or C6-C7 may occasionally be confused clinically with the symptoms and signs of distal median neuropathy. In this regard, electrophysiologic testing plays an important role in the evaluation of suspected distal median neuropathy. A large variety of electrophysiologic tests are available, enabling the physician to study the median nerve.<sup>7 Jablecki C.K., Andary M.T., So Y.T. , et al. Literature review of the usefulness of nerve conduction studies and electromyography for the evaluation of patients with carpal tunnel syndrome Muscle Nerve 1993 ;  16 : 1392-1414

Cliquez ici pour aller à la section Références, 10 Kimura J. Electrodiagnosis in Diseases of Nerve and Muscle: Principles and Practice Philadelphia, PA: FA Davis (1983). 

Cliquez ici pour aller à la section Références, 14 Macdonell R.A., Schwartz M.S., Swash M. Carpal tunnel syndrome: Which finger should be tested?. An analysis of sensory conduction in digital branches of the median nerve Muscle Nerve 1990 ;  13 : 601-606  [cross-ref]

Cliquez ici pour aller à la section Références, 22 Stevens J.C. The electrodiagnosis of carpal tunnel syndrome Muscle Nerve 1987 ;  10 : 99-113  [cross-ref]

Cliquez ici pour aller à la section Références</sup> Electrophysiology not only can establish localization but can usually help assess severity and prognosis and help guide subsequent treatment.