Table 2.
NOAF group: Clinical and laboratory data on the day of AF compared to data three days before AF occurrence.
| Day − 3 of AF occurrence | Day of AF occurrence | p | |
|---|---|---|---|
| Clinical Data | |||
| PaO2/FiO2, mmHg | 162.3 ± 24.3 | 199.05 ± 35.5 | 0.056 |
| Heart rate | 65.9 ± 14.6 | 100 ± 6.8 | 0.002 |
| Noradrenaline (μg/kg/min) | 0.08 ± 0.06 | 0.44 ± 0.22 | 0.01 |
| Lactate, mmol/lt | 1.1 ± 0.4 | 2.3 ± 0.5 | < 0.001 |
| ScVO2, %a | 69.6 ± 3.6 | 75.8 ± 3 | < 0.001 |
| Laboratory Data | |||
| WBC, 103/L (<10 ×103/L) | 8680 ± 2679 | 10,627 ± 1972 | 0.71 |
| CRP (mg/dl) (<0.5) | 7.41 ± 4.3 | 12.33 ± 4.1 | 0.01 |
| Ferritin (ng/ml) (<330) | 1188 ± 453 | 999 ± 787 | 0.46 |
| Na (mmol/lt) | 143.6 ± 4.7 | 145.6 ± 3.8 | 0.57 |
| K (mmol/lt) | 4.3 ± 0.3 | 4.4 ± 0.3 | 0.62 |
| Troponin, ng/ml Ia(<0.02) | 0.16 ± 0.31 | 0.64 ± 1.04 | 0.017 |
| Culture results | |||
| Positive blood culture, n(%)b | 0 | 13 (81%) | – |
| Positive ETA, N(%) | 0 | 5 (26%) | – |
CRP, C-reactive protein; ETA, Endotracheal Aspirate sample; NOAF, New Onset Atrial Fibrillation; PaO2/FiO2, Partial Oxygen Pressure/Fraction of Inspired Oxygen; ScVO2, Central Venous Oxygen Saturation; WBC, white blood cells;
a
For troponin and ScVO2, the value in the first column refers on admission data
b
Eleven patients presented primary bacteremia on the day NOAF occurred. Two more patients diagnosed with VAP on NOAF day, presented positive blood cultures, with the same isolate as the one responsible for VAP (bacteremic VAP)