Periodic limb movements during sleep (PLMS) with arousals are associated with subsequent nonsustained ventricular tachycardia (NSVT), new research suggests.

Investigators assessed temporal associations between PLMS and NSVT in older men in their 70s and 80s with PLMS and apnea-hypopnea and found that PLMS without arousal was not significantly associated with NSVT.