Figure 2.

The study and analytical design (indications for converting into cardiopulmonary bypass – persistence of the following for >15 min despite aggressive therapy: cardiac index <1.5 L/min/m², SvO₂ <60%, mean arterial pressure <50 mmHg, ST-segment elevation >2 mV, large new wall motion abnormalities or collapse of left ventricle function assessed by transesophageal echocardiography, and sustained malignant arrhythmias, depending on the available monitoring in the individual group)