39 yearsold man with abnormal body movements during

39 years-old man with abnormal body movements during sleep Teaching Neuro. Images Neurology Resident and Fellow Section © 2014 American Academy of Neurology

Vignette • 39 -year old man with stereotyped episodes during sleep since childhood – Rhythmic, side-to-side head and body rolling movements lasting 1 -10 minutes – Occur most days of the week – Distressing for bed partner • No daytime sleepiness • Unremarkable neurological & physical examination. • No history of cognitive problems or autism © 2014 American Academy of Neurology Loureiro et. al.

EEG during event © 2014 American Academy of Neurology Loureiro et. al.

Video © 2014 American Academy of Neurology Loureiro et. al.

An adult patient with sleep related rhythmic movement disorder • Rhythmic Movement Disorder (RMD) was previously known as Jactatio capitis nocturna (head banging) • It is characterized by repetitive rocking or rhythmic movements of head, body or limbs (1) • It usually occurs when falling asleep, during any sleep stage, or even during periods of relaxed wakefulness • RMD is typically seen in infants and children but may persist into adulthood • It can be confused with nocturnal epileptic seizures • Treatment is not usually needed but clonazepam may help if required(2). © 2014 American Academy of Neurology Loureiro et. al.