ZEEP (n=60) PEEP (n=64) p Serum Creatinine (mg/dl) 1.27 ± 1.1 0.98 ± 0.4 0.051 Serum Troponine I (mcg/L) 0.02 ± 0.03 0.05 ± 0.22 0.297 C-Reactive Proteine (mg/dl) 11.5 ± 7.5 12.1 ± 6.0 0.623 Serum BNP (pg/ml) 156.8 ± 291.1 136.6 ± 164.6 0.642

Table 4: Post-operative blood sample tests.