Table 1.
Characteristics of the study population at baseline and outcome
| Characteristic | All patients (n = 40) | Outcomea | ||
| Good (n = 13) | Poor (n = 27) | P value | ||
| Mean age (years) | 58 ± 14 | 53 ± 17 (15 to 76) | 61 ± 12 (30 to 81) | 0.12 |
| SAPS II score | 61 ± 19 | 49 ± 18 (13 to 75) | 66 ± 17 (41 to 125) | 0.01 |
| Men (n) | 31/40 | 8/13 (62%) | 23/27 (85%) | 0.23 |
| Ventricular fibrillation | 14 | 8 (57%) | 6 (43%) | |
| Asystole | 23 | 4 (17%) | 19 (83%) | |
| Other pulseless electric activity | 3 | 1 (33%) | 2 (67%) | |
| Temperature on admission to the emergency department (°C) | 36 ± 1 | 36.1 ± 1.1 (33.8 to 38) | 35.9 ± 1.1 (33.6 to 37.7) | 0.86 |
| Glasgow Coma Scale score | 4 ± 1 | 4 ± 2 (3 to 7) | 3 ± 1 (3 to 7) | 0.20 |
| Glucose on admission (mmol/l) | 13.6 ± 5 | 14.6 ± 4.9 (9 to 24.4) | 13.1 ± 5.1 (2.6 to 22.2) | 0.55 |
| Lactates on admission (mmol/l) | 9.8 ± 6.4 | 8.4 ± 5.8 (2.3 to 19.1) | 10.5 ± 6.6 (2.4 to 24.8) | 0.20 |
| Arterial pH on admission | 7.25 ± 0.18 | 7.25 ± 0.15 (6.93 to 7.45) | 7.25 ± 0.19 (6.84 to 7.54) | 0.55 |
| Estimated time of anoxia (min) | 11 ± 9 | 7 ± 4 (0 to 14) | 13 ± 9 (1 to 40) | 0.03 |
| Time from initiation of ACLS to ROSC (min) | 16 ± 10 | 21 ± 12 (1 to 45) | 14 ± 8 (1 to 35) | 0.06 |
| Time from ACLS to initiation of MIH (min) | 98 ± 54 | 103 ± 50 (45 to 190) | 96 ± 57 (55 to 300) | 0.51 |
| Time from initiation of MIH to achieving goal temperature (min) | 187 ± 119 | 198 ± 88 (30 to 360) | 181 ± 132 (30 to 600) | 0.25 |
Values are expressed as mean ± standard deviation. aGood outcome corresponded to CPC scores of 1 or 2; poor outcome corresponded to CPC scores of 3 to 5. ACLS, advanced cardiac life support; CA, cardiac arrest; MIH, mild induced hypothermia; ROSC, return of spontaneous circulation; SAPS, Simplified Acute Physiology Score.