Abstract
Close monitoring of the balance between oxygen demand and supply is of great importance during cardiac cardiopulmonary bypass (CPB) surgery. This study was to compare conventional intermittent venous blood gas monitoring with continuous transcutaneous oxygen and carbon dioxide monitoring in infant patients undergoing cardiac surgery with CPB. According to paired data from 29 infant patients undergoing cardiac surgery we found that a positive correlation existed between the two techniques, with a correlation coefficient 0.9021 and 0.8021 for PO2 and PCO2 respectively. It’s concluded that transcutaneous monitoring and intermittent venous blood sampling had good correlation and transcutaneous monitoring may be used conveniently and safely clinically during CPB.
Highlights
Most infant cardiac surgeries are conducted with the help of cardiopulmonary bypass (CPB)
Each pair of data was composed of venous blood gas PvO2 or PvCO2 and corresponding TcpO2 or TcpCO2 values at different time-points
We reported here a comparison between TCM transcutaneous blood gas monitor and venous blood gas sampling and demonstrated a significant positive correlation between the two techniques
Summary
Most infant cardiac surgeries are conducted with the help of cardiopulmonary bypass (CPB). Because low body weight infant patients have a higher energy demand than adult patients, blood flow adjustment according to temperature changes during CPB is of utmost importance to ensure enough tissue perfusion and avoid hypoxaemia [1,2,3]. To closely monitor the balance between oxygen demand and supply many approaches were developed including invasive and noninvasive measurements [4,5,6]. In the circumstances of CPB intermittent blood gas monitoring, which is the rule in cardiac surgery, often fails to detect the rapid changes in real-time oxygen balance especially in the beginning and rewarming stages of CPB [7]. The aim of this study was to compare conventional intermittent venous blood gas monitoring with the con-.
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