Biomaterial Database

[The importance of electrographic investigations for the diagnosis and treatment of acroparesthesias (author's transl)]. 1975

J F Moody

Acroparesthesias may develop as a result of various pathological processes which affect the nerves of the hand. Usually the diagnosis can be made from the history and the clinical findings. If objectifiable neurological findings are lacking, electrographic investigations must be carried out. If several diseases are present, electrography (stimulation and myography) is particularly important for diagnosis and therapy. In compression of the median nerve in the carpal tunnel, the speed of sensory conduction is delayed in about 85%, an anomalous motor latent duction is delayed in about 70%. A distal motor latency of the median nerve of more than 8 m/sec is an absolute indication for a surgical intervention. Signs of denervation of the thenar muscles also required operative treatment.

UI	MeSH Term	Description	Entries
D008475	Median Nerve	A major nerve of the upper extremity. In humans, the fibers of the median nerve originate in the lower cervical and upper thoracic spinal cord (usually C6 to T1), travel via the brachial plexus, and supply sensory and motor innervation to parts of the forearm and hand.	Median Nerves,Nerve, Median,Nerves, Median
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
D009493	Neurosurgery	A surgical specialty concerned with the treatment of diseases and disorders of the brain, spinal cord, and peripheral and sympathetic nervous system.	Neurosurgeries
D010292	Paresthesia	Subjective cutaneous sensations (e.g., cold, warmth, tingling, pressure, etc.) that are experienced spontaneously in the absence of stimulation.	Dysesthesia,Formication,Paresthesia, Distal,Paresthesia, Painful,Distal Paresthesia,Distal Paresthesias,Dysesthesias,Formications,Painful Paresthesia,Painful Paresthesias,Paresthesias,Paresthesias, Distal,Paresthesias, Painful
D002349	Carpal Tunnel Syndrome	Entrapment of the MEDIAN NERVE in the carpal tunnel, which is formed by the flexor retinaculum and the CARPAL BONES. This syndrome may be associated with repetitive occupational trauma (CUMULATIVE TRAUMA DISORDERS); wrist injuries; AMYLOID NEUROPATHIES; rheumatoid arthritis (see ARTHRITIS, RHEUMATOID); ACROMEGALY; PREGNANCY; and other conditions. Symptoms include burning pain and paresthesias involving the ventral surface of the hand and fingers which may radiate proximally. Impairment of sensation in the distribution of the median nerve and thenar muscle atrophy may occur. (Joynt, Clinical Neurology, 1995, Ch51, p45)	Compression Neuropathy, Carpal Tunnel,Entrapment Neuropathy, Carpal Tunnel,Amyotrophy, Thenar, Of Carpal Origin,Median Neuropathy, Carpal Tunnel,Carpal Tunnel Syndromes,Syndrome, Carpal Tunnel,Syndromes, Carpal Tunnel
D004558	Electric Stimulation	Use of electric potential or currents to elicit biological responses.	Stimulation, Electric,Electrical Stimulation,Electric Stimulations,Electrical Stimulations,Stimulation, Electrical,Stimulations, Electric,Stimulations, Electrical
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
D000200	Action Potentials	Abrupt changes in the membrane potential that sweep along the CELL MEMBRANE of excitable cells in response to excitation stimuli.	Spike Potentials,Nerve Impulses,Action Potential,Impulse, Nerve,Impulses, Nerve,Nerve Impulse,Potential, Action,Potential, Spike,Potentials, Action,Potentials, Spike,Spike Potential