Table 1– Haemodynamic and gas exchange parameters
VariablesBefore surgeryAfter CPBAfter 24 hAfter 48 hANOVA
HR beats·min−177.9±10.980.7±1287.6±14.783.9±15.6ns
Pas mmHg157±2894±22##119±23**,¶¶117±18++,§§p<0.001
Pad mmHg77±962±16##54±10**55±9++p<0.001
Pa,O2 mmHg242±2692±6¶¶82±7§§p<0.001
FI,O2Room air1Room airRoom air

  • Data are presented as mean±sd, unless otherwise stated. CPB: cardiopulmonary bypass; HR: heart rate; Pas: systolic blood pressure; Pad: diastolic blood pressure; Pa,O2: arterial oxygen tension; FI,O2: inspiratory oxygen fraction; ns: nonsignificant. ##: p<0.01 after CPB versus before surgery; **: p<0.01 after 24 h versus before surgery; ¶¶: p<0.01 after 24 h versus after CPB; ++: p<0.01 after 48 h versus before surgery; §§: p<0.01 after 48 h versus after CPB.