Myocardial tissue CO2 tension detects coronary blood flow reduction after coronary artery bypass in real-timeâ€

Myocardial pH and PtCO2 monitoring can quantify the degree of regional tissue hypoperfusion in real-time and correlated well with cellular metabolism and contractile function, whereas cardiac output did not. New robust conductometric PtCO2 sensors have the potential to serve as a clinical cardiac monitoring tool during surgery and postoperatively.