mixed movement disorders revealing an atypical form of creatine deficiency syndrome.

نویسندگان

fahmi nasrallah department of biology, school of medicine, laboratory of biochemistry, rabta hospital, jebbari, 1007 tunis, tunisia.

hanene benrhouma department of child and adolescent neurology, school of medicine, mongi ben hmida institute of neurology, 1700 tunis, tunisia.

ichraf kraoua department of child and adolescent neurology, school of medicine, mongi ben hmida institute of neurology, 1700 tunis, tunisia.

gilbert briand department of biochemistry and molecular biology, school of medicine, laboratory of endocrinology, metabolism-nutrition, oncology, biology pathology center chru, 57039 lille, france.

چکیده

background: h-reflex is a valuable electrophysiological technique for assessing nerve conduction through entire length of afferent and efferent pathways, especially nerve roots and proximal segments of peripheral nerves. the aim of this study was to investigate the relation between normal values of flexor carpi radialis (fcr) h-reflex latency, upper limb length and age in normal subjects, and to determine whether there is any regression equation between them. methods: by considering the criteria of inclusion and exclusion, 120 upper limbs of 69 normal volunteers (68 hands of 39 men and 52 hands of 30 women) with the mean age of 39.8 ± 11.2 years participated in this study. fcr h-reflex was obtained by standard electrodiagnostic  techniques,  and  its  onset  latency was recorded. upper limb length and arm length were measured in  defined position.the degree  of association between these variables was determined with  pearson correlation and  linear  regression was used for obtaining the proposed relations. resalts: mean fcr h-reflex latency was found to be 15.88 ± 1.27 ms. there was a direct linear correlation between fcr h-reflex latency and upper limb length (r = 0.647) and also arm length (r = 0.574), but there was no significant correlation between age and fcr h-reflex latency (p = 0.260). finally, based on our findings, we tried to formulate these relations by statistical methods. conclusion: we found that upper limb length and arm length are good predictive values for estimation of normal fcr h-reflex latency but age, in the range of 20-60 years old, has no correlation with its latency. this estimation could have practical indications in pathologic conditions.

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Mixed movement disorders revealing an atypical form of creatine deficiency syndrome

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عنوان ژورنال:
iranian journal of neurology

جلد ۱۴، شماره ۱، صفحات ۴۷-۴۹

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