Table 1.
General characteristics of the population
| Characteristic | Arithmetic mean | Value standard deviation | Minimum–Maximum |
| Age (years) | 59.37 | 14.43 | 20–89 |
| Time no-flow (minutes) | 7.67 | 26.03 | 4–110 |
| Partial pressure of arterial O2 (mmHg) | 138.86 | 112.44 | 25.8–539 |
| Partial pressure of arterial CO2 (mmHg) | 48.92 | 12.91 | 21.1–81.1 |
| HCO3 - (mmol/L) | 14.85 | 4.75 | 7–27.4 |
| Ph | 7.13 | 0.14 | 6.87–7.41 |
| Glycemia (mg/dL) | 307.15 | 97.84 | 114–627 |
| Lactates (mmol/L) | 9.87 | 4.05 | 2.4–20 |
| Highest creatinine during 72 h (mg/dL) | 1.84 | 1.12 | 0.64–4.8 |
| Characteristic | Absolute frequency Number | Value relative frequency % | CI 95 % |
| Ventricular fibrillation rhythm of cardiac arrest | 32 | 69.57 | 55.20–80.92 |
| Pulseless electrical activity rhythm of cardiac arrest | 8 | 17.39 | 9.08–30.72 |
| Asystole rhythm of cardiac arrest | 6 | 13.04 | 6.12–25.66 |
| Cardiac arrest due to cardiac cause | 32 | 69.57 | 55.20–80.92 |
| Cardiac arrest due to non-cardiac cause | 14 | 30.43 | 19.08–44.80 |
| Patients with out-of-hospital cardiac arrest | 35 | 76.09 | 62.07–86.09 |
| Patients with in-hospital cardiac arrest | 11 | 23.91 | 13.91–37.93 |
| LUCAS™ patients | 11 | 23.91 | 13.91–37.93 |
| Not LUCAS™ patients | 35 | 76.09 | 62.07–86.09 |
| General ICU patients | 18 | 39.13 | 26.39–53.54 |
| Heart surgery ICU patients | 28 | 60.87 | 46.46–73.61 |
| Low-dosage patient’s intravascular drug support | 10 | 21.74 | 12.26–35.57 |
| Medium-dosage patient’s intravascular drug support | 9 | 19.57 | 10.65–33.18 |
| High-dosage patient’s intravascular drug support | 27 | 58.70 | 44.34–71.72 |
| Patients with intra-aortic balloon pump | 16 | 34.78 | 22.68–49.23 |
| Patients with no intra-aortic balloon pump | 30 | 65.22 | 50.77–77.32 |
| Patients who had coronary angiography | 28 | 60.87 | 46.46–73.61 |
| Patients who did not have coronary angiography | 18 | 39.13 | 26.39–53.54 |
| Percutaneous transluminal coronary angioplasty/stent | 12 | 26.09 | 15.60–40.26 |
| No percutaneous transluminal coronary angioplasty/stent | 34 | 73.91 | 59.74–84.40 |
| Patients on continuous veno-venous hemofiltration | 16 | 34.78 | 22.68–49.23 |
| Patients not on continuous veno-venous hemofiltration | 30 | 65.22 | 50.77–77.32 |
| Patients on extracorporeal membrane oxygenation | 8 | 17.39 | 9.08–30.72 |
| Patients not on extracorporeal membrane oxygenation | 38 | 82.61 | 69.28–90.92 |
| Patients on target temperature management | 23 | 50.00 | 36.12–63.88 |
| Patients not on target temperature management | 23 | 50.00 | 36.12–63.88 |
| Patients on target temperature management in <2 h | 7 | 30.43 | 15.60–50.86 |
| Patients on target temperature management in >2 h | 16 | 69.57 | 49.14–84.40 |
| Temperature ≥37.8 after 24 ha | 20 | 47.62 | 33.36–62.28 |
| Temperature <37.8 after 24 ha | 22 | 52.38 | 37.72–66.64 |
| Pupillary reflex + a | 24 | 57.14 | 42.20–70.88 |
| Pupillary reflex –a | 18 | 42.86 | 29.12–57.80 |
| First evaluation of motor response ≤ M2 | 39 | 84.78 | 71.77–92.43 |
| First evaluation of motor response > M2 | 7 | 15.22 | 7.57–28.23 |
| Isoelectric electroencephalogram | 10 | 21.74 | 12.26–35.57 |
| Burst Suppression electroencephalogram | 3 | 6.52 | 2.24–17.50 |
| Low voltage electroencephalogram | 4 | 8.70 | 3.44–20.33 |
| Epileptiform electroencephalogram | 8 | 17.39 | 9.08–30.72 |
| Diffuse slowing electroencephalogram | 17 | 36.96 | 24.53–51.40 |
| Normal electroencephalogram | 4 | 8.70 | 3.44–20.33 |
| Discontinuous electroencephalogram patterns | 17 | 36.96 | 24.53–51.40 |
| Epileptiform electroencephalogram | 8 | 17.39 | 9.08–30.72 |
| Continuous electroencephalogram patterns | 21 | 45.65 | 32.15–59.82 |
| Electroencephalogram reactivity | 10 | 21.74 | 12.26–35.57 |
| Electroencephalogram unreactivity | 36 | 78.26 | 64.43–78.26 |
| Short-latency somatosensory evoked potentials + | 29 | 63.04 | 48.60–75.47 |
| Short-latency somatosensory evoked potentials − | 17 | 36.96 | 24.53–51.40 |
| 10 mA Middle-latency somatosensory evoked potentials + | 9 | 19.57 | 10.65–33.18 |
| 10 mA Middle-latency somatosensory evoked potentials − | 37 | 80.43 | 66.82–89.35 |
| 50 mA Middle-latency somatosensory evoked potentials + | 19 | 41.30 | 28.28–55.66 |
| 50 mA Middle-latency somatosensory evoked potentials − | 27 | 58.70 | 44.34–71.72 |
| 50 mA Blood pressure reactivity + | 37 | 80.43 | 66.82–89.35 |
| 50 mA Blood pressure reactivity –columns | 9 | 19.57 | 10.65–33.18 |
| Sedation during Neurophysiological recordings | 22 | 52.38 | 37.72–40.26 |
| Target temperature management during Neurophysiological recordings | 12 | 26.09 | 15.60–40.26 |
aMissing data for four patients. LUCAS Lund University cardiac arrest system