Fig. 3

Brain natriuretic peptide (BNP) values (a) and proportion of patients with BNP ≥ 200 pg/ml (b) in the cardiac surgery intensive care unit. BNP_0–12, BNP_12–24 and BNP_24–48 are the highest BNP values measured within respectively 0–12 h, 12–24 h and 24–48 h after admission to the Cardiac Surgery Intensive Care Unit. ^ap-value for repeated measures ANOVA. ^bNumber of BNP measurements for each timepoints in the control and in the exenatide groups