Higher incidence of acute respiratory distress syndrome in cardiac surgical patients with elevated serum procalcitonin concentration: a prospective cohort study

Table 2 Outcomes data

	Overall population (n = 296)	PCT elevated (n = 64)	Control (n = 232)	p value
1st postoperative day fluid balance (mL)	672 ± 276	663 ± 248	727 ± 322	0.051
Nt-pro-BNP (pg/mL)	2699 ± 1373	2836 ± 1403	2662 ± 1365	0.372
PCT (ng/mL)	5.63 ± 6.34	16.23 ± 5.9	2.70 ± 1.43	< 0.001*
WBC (*10⁹/L)	13.6 ± 2.2	13.8 ± 2.8	13.5 ± 2.0	0.532
VIS	16.2 ± 9.6	16.0 ± 14.2	16.2 ± 8.0	0.898
P/F ratio	367 ± 66	334 ± 88	375 ± 56	0.001*
Severity of ARDS				< 0.001*
No ARDS, n (%)	269 (90.9)	50 (78.1)	219 (94.4)	< 0.001*
Mild ARDS, n (%)	19 (6.4)	7 (10.9)	12 (5.2)	0.576
Moderate ARDS, n (%)	7 (2.4)	6 (9.4)	1 (0.4)	< 0.001*
Severe ARDS, n (%)	1 (0.3)	1 (1.6)	0	0.864
MV duration (day)	1.7 ± 1.7	2.6 ± 3.0	1.4 ± 0.9	0.002*
ICU stay (day)	2.0 ± 2.4	1.7 ± 1.4	3.3 ± 4.3	< 0.001*
Mortality, n (%)	1 (0.3)	1 (1.6)	0 (0)	0.490
Renal failure, n (%)	4 (1.4)	2 (3.1)	2 (0.8)	0.165
Pneumonia, n (%)	6 (2.0)	4 (6.3)	2 (0.8)	0.027*

PCT procalcitonin, Nt-pro-BNP N-terminal pro-B-type natriuretic peptide, WBC white blood cell, VIS vasoactive-inotropic score, ARDS acute respiratory distress syndrome, MV mechanical ventilation
* p < 0.05

ISSN: 2047-783X