Adiponectin expression was similar in AF versus non-AF patients in both EAT secretome and EAT (FC 1.10, p = 0.80, FC -1.97, p = 0.22), as were omentin (FC -1.14, p = 0.50, FC1.57, p = 0.34) and chemerin (only in EAT: FC 3.38, p = 0.49). Here, RARRES2 is linked to atrial fibrillation.