Changes of Median Nerve Conduction in Acute Stage of Should-Hand Syndrome after Stroke
Abstract：Objective To analyze the changes of nerve conduction of median nerves in acute stage of shoulder-hand syndrome (SHS) af-ter stroke. Methods 50 stroke patients with SHS in the acute stage were selected as SHS group, 50 stroke patients without SHS was selected as N-SHS group, and 50 non-stroke and without SHS patients were selected as N-S group. The detection of bilateral nerve conduction of me-dian nerve included sensory and motor nerve conduction, and F wave. Results In SHS group, the sensory nerve action potential amplitude (SNAP) and compound muscle action potential amplitude (CMAP) of median nerve of the affected hand were lower than that of the unaf-fected hand (P<0.05). There was no significant difference in sensory conduction velocity (SCV), distal motor latency (DML) and F wave la-tency of the median nerve between the affected and the unaffected hand in SHS group (P>0.05). The SCV of median nerve was slower, the SNAP and CMAP were lower in SHS group than in N-SHS group and N-S group (P<0.05). There was no significant difference in DML and F wave latency among 3 groups (P>0.05). Conclusion The median nerve on the affected hand is impaired in acute stage of SHS after stroke. The lesion is mostly located in the distal end of median nerve, and is mainly the dystrophy of axonal neuropathy, which indicates that the le-sion in the distal segment of median nerve is an essential expression of SHS after stroke.
Keywords：strokeshoulder-hand syndromemedian nerve
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 1171-1173 )