Study finds link between periodic limb movements and cardiac arrhythmia

A study in the January issue of the Journal of Clinical Sleep Medicine involved 2,793 community-dwelling older men who underwent polysomnography with measurement of limb movements and EKG. Results show that the frequency of periodic limb movements during sleep (PLMS) is associated with cardiac arrhythmia in subsets of older men with structural heart disease and those not taking certain anti-arrhythmic medications.