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. 2024 Mar 15;86(5):2425–2431. doi: 10.1097/MS9.0000000000001880

Figure 1.

Figure 1

Change in clinical markers after cardiopulmonary bypass (CPB). (A) Amounts of FeNO, S-nitroso haemoglobin (SNO-Hb) and total nitric oxide (NO) (expressed per Hb × 103) in pre-CPB (T1), immediate post-CPB (T2) and postoperative day 1 (POD 1, T3) blood samples. SNO-Hb and total NO declined from pre-CPB (T1) to post-CPB (T2) and POD 1 (T3), while FeNO levels remained constant. (B) Erythropoietin (EPO) concentrations in pre-CPB, immediate post-CPB and POD 1 blood samples. EPO increased after CPB, from T1/T2 to T3. (C) Scatter plot depicting the inverse correlation between SNO-Hb level post-CPB and change in EPO (∆ EPO) from completion of CPB to POD 1 (T3-T2). The level of SNO inversely correlated with the EPO concentration (r=−0.53, P=0.037).