PDK4 and atrial fibrillation: We also detected a 0.8 fold decrease in SLC25A20 (CI 0.7–0.9, p = 2.0x10-4, S5 Fig) and 0.7 fold decrease in PDK4 (CI 0.5–1.0, p = 0.05, S5 Fig) in post-cardioversion sinus rhythm samples as compared with baseline AF.