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Case Reports
. 2009 Nov 16;1(1):e2.
doi: 10.4081/ni.2009.e2.

Focal dystonia, tremor and myokymic discharges secondary to electrical injury

Konstantina G Yiannopoulou  1 , Theodoros Avramidis, Roxani Divari, Alexandros Papadimitriou
Affiliations
Case Reports

Focal dystonia, tremor and myokymic discharges secondary to electrical injury

Konstantina G Yiannopoulou et al. Neurol Int. .

Abstract

We describe the case of a male patient who developed electromyographically confirmed myokymia, dystonia and tremor and clinically confirmed focal dystonia and tremor, secondary to electrical injury. Dystonia is a rare complication of electrical injury. Myokymic discharges secondary to electrical injury are previously unreported. Dystonia and tremor EMG findings were present not only at the clinically affected muscles of the lower limb but also at the clinically unaffected upper limb muscles. This is the first case report to link myokymia as a secondary complication of an electrical injury.

Keywords: electrical injury; focal dystonia; myokymic discharges; tremor.

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Figures

Figure 1
Figure 1
(a) EMG-right arm: motor unit grouping with a frequency of 10Hz in an alternating pattern between flexors and extensors (tremor). (b) EMG-right arm: spontaneous discharges firing at 8Hz with 2–4 units within a burst (myokymic discharges) in the right deltoid muscle (top recording). No findings in the left deltoid muscle (bottom recording).
See this image and copyright information in PMC

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