Periodic limb movement during sleep following cerebellar infarct.

Periodic limb movements during sleep (PLMS) are characterized by recurrent episodes of repetitive, stereotyped limb movements, predominantly occuring in the legs (American Sleep Disorders Association, 1997). It is observed in up to 30% of the general population (Trenkwalder, 2004). Uremia, iron deficiency, peripheral neuropathy, radiculopathy, spinalcord and brainstem lesions are known to cause PLMS. PLMS has been reported after pontine lesion (Kim et al., 2003) or supratentorial cerebral infarction (Kang et al., 2004; Sechi et al., 2008).We present the first case in which PMLS has developed following cerebellar infarct.