A set of the cardiac index data during extracorporeal circulation (ECC) for patients with mixed venous oxygen saturation (SvOdos) above 68%, mean arterial pressure (MAP) above 60 mmHg and tissue oxygen delivery (DO2) greater than 280 mL/min/m 2 , in the function of haemoglobin density and tissue oxygen delivery
The linear regression curves for three selected oxygen delivery (DO2) levels showing the relationship between cardiac index (CI) and haemoglobin density
Dialogue
Recently accumulating evidence has suggested that the trends in current perfusion practice need to be improved as we experience tremendous technological improvement every day. The discussed new GDP concept provides an ideal opportunity to apply treatment which is tailored to the individual patient’s needs and, therefore, aims xpress to diminish the risk of complications throughout the entire surgical procedure. Consequently, the emerging concept jeopardizes the current widely accepted CPB strategies of organ perfusion based on a constant pump flow rate and the ubiquitous indicators of tissue perfusion, such as lactate concentration and urine output, with lactates representing effective tissue perfusion and metabolism balance, and urine output being a vital indicator of renal perfusion.