Nocturnal Myoclonus Syndrome

Synonyms

Excessive Periodic Sleep Related Leg Movements

Excessive Periodic Sleep-Related Leg Movements

Myoclonus Syndrome, Nocturnal

Myoclonus Syndrome, Sleep

Myoclonus Syndromes, Sleep

Nocturnal Myoclonus Syndromes

Periodic Leg Movements, Excessive, Sleep-Related

Periodic Limb Movement Disorder

Periodic Movement Disorder, Sleep

Sleep Disorder, Periodic Movements

Sleep Myoclonus Syndrome

Sleep Myoclonus Syndromes

Sleep Related Periodic Leg Movements, Excessive

Sleep-Related Periodic Leg Movements, Excessive

Syndrome, Nocturnal Myoclonus

Syndrome, Sleep Myoclonus

Syndromes, Sleep Myoclonus

Excessive periodic leg movements during sleep that cause micro-arousals and interfere with the maintenance of sleep. This condition induces a state of relative sleep deprivation which manifests as excessive daytime hypersomnolence. The movements are characterized by repetitive contractions of the tibialis anterior muscle, extension of the toe, and intermittent flexion of the hip, knee and ankle. (Adams et al., Principles of Neurology, 6th ed, p387)