CRP and pericarditis: Additionally, CRP level, ESR and WBC were statistically higher in patients with recurrent pericarditis than with acute disease (CRP—160.57 ± 83.63 vs. 116.62 ± 49.57 mg/L, p = 0.05; ESR—72.0 ± 18.35 vs. 47.11 ± 15.67 mm/h, p < 0.001; WBC—19.32 ± 5.30 vs. 15.82 ± 3.64 × 109/L, p = 0.02).