NPPB and hydrops fetalis: Left-ventricular function as assessed by ejection-fraction (EF) measurement with echocardiography at day 3–4 after catheterization (STEMI vs. NSTEMI: 48 % (37, 55) vs. 50 % (38, 55), p = 0.375) and HF biomarker levels (NT-proBNP 1486 pg/ml (386, 4854) vs. 2237 pg/ml (594, 8750), p = 0.182) were comparable between both groups.