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Figure 3 Serial changes in plasma C-reactive protein (CRP) levels after percutaneous coronary intervention (PCI). C-reactive protein increased after coronary stenting in a time-dependent manner, reaching a maximum at 48 h in both coronary sinus and peripheral blood. These changes were also more striking in coronary sinus blood (left). The transcardiac gradient of CRP increased after PCI reaching a maximum at 48 h (right). Closed circles = coronary sinus blood (CS); open circles = peripheral blood (P); squares = transcardiac gradient. *p < 0.05 vs. pre; **p < 0.01 vs. pre; ***p < 0.001 vs. pre; p < 0.01 CS vs. P.