CCL2 and atrial fibrillation: Sohinki et al. recently investigated the ability of LL-EMF to attenuate pacing-induced AF in patients presenting for AF ablation.66 In response to 60 min of LL-EMF stimulation applied over the head and neck, they were able to demonstrate reductions in the duration of pacing-induced AF (11.0 ± 3.43 min; P = .03), ectopic firing initiating spontaneous episodes of AF, and reductions in levels of the chemoattractant molecule monocyte chemoattractant protein-1.66