A case of concurrent diurnal and nocturnal paroxysmal dystonia
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Nocturnal paroxysmal dystonia (NPD), first described by Lugaresi and Cirignotta in 1981, is interpreted as a special short form of sleep-related hypermotor epilepsy and is characterized by abnormal dyskinetic movements occur mostly during NREM sleep and with no ictal EEG activity or a diffuse ictal pattern [1, 2, 3]. To the best of our knowledge, there have been very few reports of NPD with attacks occur mainly after awakening from noon sleep. We experienced a peculiar case of NPD presenting with a series of diurnal dystonic episodes and some nocturnal attacks. This case shows that NPD is still a diagnostic challenge for clinicians.
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Conflict of interest
The authors declare that they have no conflict of interest.
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