Is There a Correlation of Natriuretic Propeptide Type B With an Intraoperative Low Cardiac Output?

Low output syndrome is a common complication in patients undergoing cardiac surgery. Its incidence was reported to be 2 to 6%. Morbidity and mortality of low output syndrome is high and the costs for treating the disease are immense.Natriuretic propeptide Type B (NT-proBNP) is a biological marker for the diagnosis, prognosis and therapy of cardiac failure after cardiac surgery. Cardiac index and NT-proBNP will be correlated with morbidity and mortality. A critical threshold value for intraoperative cardiac index and NT-proBNP will be calculated.