Central venous oxygen saturation versus mixed venous oxygen saturation in cardiac surgery

Single transpulmonary thermodilution and continuous monitoring of central venous oxygen saturation during off‐pump coronary surgery

“…Thus, the recommended lower limit of SvO 2 for cardiosurgical patients is 60% 2 . Because there is a strong correlation between SvO 2 and ScvO 2 during cardiac surgery, 43 we have decided to use 60% as the lower threshold of ScvO 2 as well. Because thermodilution measurements and subsequent stabilization of hemodynamics need additional time and can prolong the duration of surgery, a decrease in ScvO 2 during OPCAB could be used as a screening parameter that implies reduced tissue perfusion due to hypovolemia, myocardial depression or anemia.…”