title: Clinical comparison of one in vitro and three in-line blood gas PO2 sensors during cardiopulmonary bypass.
abstract: During 17 cardiopulmonary bypass (CPB) operations, arterial PO2 measurements were taken at 5 min intervals using four different types of PO2 sensor; three in-line (CardioMet-1000, Polytrode, and Gas-Stat) and one blood gas analyser (IL-1302). Comparisons between sensors were made relative to the CardioMet-1000. The three in-line sensors showed close agreement. The mean and standard deviation of the difference between the Gas-Stat and the CardioMet-1000 was 0.7 +/- 4.7 kPa, and between the Polytrode and the CardioMet-1000 was -1.4 +/- 4.0 kPa. Agreement between the IL-1302 blood gas analyser and CardioMet-1000 was not as good, the difference being -7.0 +/- 8.6 kPa.
mesh_terms: D001774:Blood Chemical Analysis / Q000379:methods; D001026:Coronary Artery Bypass; D006801:Humans; D007036:Hypothermia, Induced; D010100:Oxygen / Q000097:blood*; D010313:Partial Pressure
chemical_list: D010100:Oxygen