Monitoring of oxidative and metabolic stress during cardiac surgery by means of breath biomarkers: an observational study

Table 2 Correlation of exhaled acetone concentrations (C_i/C₁₂₀) with clinical parameters

Parameter	t1	t2	t3	t4	t5	t6	t8
CRP before surgery	ns	p < 0.05	p < 0.01	p < 0.05	p < 0.01	ns	ns
CRP after surgery	ns	ns	ns	ns	p < 0.05	ns	ns
Serum lactate after surgery	ns	ns	ns	p < 0.05	ns	ns	ns
TNT after surgery	ns	ns	p < 0.05	p < 0.01	p < 0.05	ns	p < 0.05
Duration of aortic clamping	ns	ns	ns	p < 0.05	ns	ns	ns
Duration of ECC	ns	ns	ns	p < 0.05	p < 0.05	ns	ns

t1 after induction of anesthesia, t2 after sternotomy, t3 5 min after end of ECC, t4 30 min, t5 60 min, t6 90 min, t8 150 min after surgery. ns correlation not significant.

ISSN: 1749-8090