Long latency muscle responses in cerebellar diseases

Long latency reflexes were measured from the hand muscles of 27 patients suffering from different cerebellar diseases (12 diffuse cerebellar atrophies, 7 cerebellar hemispheric infarcts, 8 Friedreich's disease) and from 45 controls after electrical stimulus of the median nerve at the wrist. The...

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Bibliographic Details
Published in:European Archives of Psychiatry and Neurological Sciences 1986-01, Vol.235 (6), p.355-360
Main Authors: CLAUS, D, SCHOCKLMANN, H. O, DIETRICH, H. J
Format: Article
Language:English
Subjects:
Adult
Afferent Pathways - physiopathology
Aged
Atrophy
Biological and medical sciences
Cerebellar Ataxia - physiopathology
Cerebellar Diseases - diagnosis
Cerebellar Diseases - physiopathology
Cerebellum - pathology
Cerebellum - physiopathology
Dominance, Cerebral - physiology
Electrodiagnosis. Electric activity recording
Female
Friedreich Ataxia - physiopathology
Hand - innervation
Humans
Investigative techniques, diagnostic techniques (general aspects)
Male
Medical sciences
Middle Aged
Muscles - innervation
Nervous system
Nystagmus, Pathologic - physiopathology
Reaction Time - physiology
Reflex, Abnormal - physiopathology
Reflex, Babinski
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Summary:Long latency reflexes were measured from the hand muscles of 27 patients suffering from different cerebellar diseases (12 diffuse cerebellar atrophies, 7 cerebellar hemispheric infarcts, 8 Friedreich's disease) and from 45 controls after electrical stimulus of the median nerve at the wrist. The M3 response (latency about 70 ms) was increased in about 50% of cerebellar atrophy cases and occasionally (10 of 12 cases) separated from the M2 response (50 ms). M3 was sometimes (3/7) increased and the M2-3 complex was prolonged ipsilaterally in cases of cerebellar infarcts. In the cases of Friedreich's ataxia M2 was always lost uni or bilaterally because of the disturbance of afferent or efferent fibres. The latencies of the spinal reflex M1 and also of M2 were not always increased strongly enough to be clearly separated from the normal values.
ISSN:0175-758X
1433-8491
DOI:10.1007/BF00381004