A case of myoclonus of palate, larynx, eyes, corner of mouth, diaphragma and left fingers

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This report concerns a 46 year old male with myoclonus. Involuntary rhythmic movements were observed on the palate, larynx, eyes, upper eyelids, corner of the mouth, diaphragma, and left I-II fingers, These involuntary rhythmic movements were synchronized with the frequency of 3-4 cps. Ocular myoclonus had the following characteristics : 1) Frequency of ocular myoclonus decreased slightly with eyes closed and increased with convergence. 2) Caloric response were not observed with stimulations of either 36°C or 44°C. However, the response was observed with stimulation using ice water (4°C). 3) Rotatory nystagmus indicated right directional preponderance. 4) Eye tracking test and optokinetic nystagmus pattern was of the cerebral type. 5) Minor tranquilizers were prescribed and the involuntary rhythmic movements gradually decreased.Such an improvement was not observed in cases reported elsewhere.
日本めまい平衡医学会の論文