NERVE CONDUCTION AND OTHER STUDIES IN FAMILIES WITH CHARCOT-MARIE-TOOTH DISEASE
NERVE CONDUCTION AND OTHER STUDIES IN FAMILIES WITH CHARCOT-MARIE-TOOTH DISEASE
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DOI:
10.1093/brain/87.4.589
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发表时间:
1964-01-01
期刊:
影响因子:
14.5
通讯作者:
VINCENT, BL
中科院分区:
文献类型:
--
作者:
MYRIANTHOPOULOS, NC;LANE, MH;VINCENT, BL
METHODSWe were able to perform conduction velocity measurements of the anterior tibial and ulnar nerves in 97 members of these families. The measurements were taken, under constant temperature conditions, in three groups of individuals:(1) unaffected individuals among whose immediate relatives the disease had not occurred;(2) unaffected children of affected parents; and (3) affected individuals. All individuals who underwent conduction tests, and many who were not tested, were given a neurological examination. The method used to measure the conduction velocity of the motor fibres of the anterior tibial and ulnar nerves was substantially the same as that described by Hodes et al.(1948) and Lambert (1956). By means of a dual-channel electromyograph and stimulator, action potentials were evoked by maximal electrical stimulation at the knee and ankle (for the anterior tibial nerve) and elbow and wrist (for the ulnar nerve). These were picked up by a surface electrode over the extensor digitorum brevis and hypothenar muscles respectively. The moments of stimulation and response were recorded on a cathode-ray oscilloscope where they were photographed and measured. The conduction time was calculated in metres per second by dividing the distance between two points by the latency of response of the muscle when the two points were successively stimulated.