Figure 2: (a) NT-proBNP levels in the pericardial fluid of different subgroups, (b) cTn T levels in the pericardial fluid of different subgroups, (c) CK-MB levels in the pericardial fluid of different subgroups, (d) cTnT/CK-MB ratio in the pericardial fluid of different subgroups, ^$P < 0.05 compared with AIHD, ^&P < 0.05, compared with AMI, ^#P < 0.05, compared with RMI, ^@P < 0.05, compared with Con, Mann–Whitney U-test. NT-proBNP: N-terminal pro-brain natriuretic peptide, cTnT: Cardiac troponin T, CK MB: Creatine kinase MB, AMI: Acute myocardial infarction, AIHD: Acute ischemic heartdisease, RMI: Recurrent myocardial infarction