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)

Descriptor ID	D020189
MeSH Number(s)	C10.886.425.800.600 C10.886.659.618
Concept/Terms	Nocturnal Myoclonus Syndrome Nocturnal Myoclonus Syndrome Myoclonus Syndrome, Nocturnal Nocturnal Myoclonus Syndromes Syndrome, Nocturnal Myoclonus Periodic Leg Movements, Excessive, Sleep-Related Sleep Myoclonus Syndrome Myoclonus Syndrome, Sleep Myoclonus Syndromes, Sleep Sleep Myoclonus Syndromes Syndrome, Sleep Myoclonus Syndromes, Sleep Myoclonus Periodic Movement Disorder, Sleep Sleep Disorder, Periodic Movements Sleep-Related Periodic Leg Movements, Excessive Sleep Related Periodic Leg Movements, Excessive Excessive Periodic Sleep-Related Leg Movements Excessive Periodic Sleep Related Leg Movements Periodic Limb Movement Disorder

Below are MeSH descriptors whose meaning is more general than "Nocturnal Myoclonus Syndrome".

Below are MeSH descriptors whose meaning is related to "Nocturnal Myoclonus Syndrome".

Below are MeSH descriptors whose meaning is more specific than "Nocturnal Myoclonus Syndrome".