Variable | All patients n = 826 | Base deficit quartiles | p value | |||
---|---|---|---|---|---|---|
[0–5] n = 207 | [5–9] n = 206 | [9–13] n = 207 | > 13 n = 206 | |||
Demographics | ||||||
Male gender | 564 (68.3) | 156 (75.4) | 148 (71.8) | 139 (67.1) | 121 (58.7) | < 0.001 |
Age (year) | 61 [50, 73] | 60 [51, 71] | 64 [51, 77] | 60 [49, 72] | 62 [51, 74] | 0.678 |
OHCA characteristics | ||||||
Public setting | 262 (31.8) | 79 (38.3) | 71 (34.5) | 70 (33.8) | 42 (20.4) | < 0.001 |
Witnessed CA | 698 (87.0) | 181 (90.5) | 183 (92.0) | 177 (88.5) | 157 (77.3) | < 0.001 |
Bystander CPR | 444 (55.8) | 122 (62.2) | 122 (60.7) | 99 (49.5) | 101 (51.0) | 0.004 |
Initial VF/VT | 414 (50.1) | 129 (62.3) | 121 (58.7) | 92 (44.4) | 72 (35.0) | < 0.001 |
Collapse to ROSC, min | 20 [13, 30] | 16 [10, 25] | 20 [14, 27] | 22 [15, 33] | 29 [20, 40] | < 0.001 |
Prehosp. infusion of bicar. | 113 (13.7) | 17 (8.2) | 22 (10.7) | 28 (13.5) | 46 (22.3) | < 0.001 |
Chronic respiratory disease | 42 (5.1) | 11 (5.3) | 14 (6.8) | 8 (3.9) | 9 (4.4) | 0.399 |
Chronic kidney disease | 45 (5.5) | 5 (2.4) | 12 (5.9) | 14 (6.9) | 14 (7.0) | 0.039 |
Biological characteristics at ICU admission | ||||||
pH | 7.22 [7.11, 7.31] | 7.33 [7.28, 7.39] | 7.27 [7.21, 7.32] | 7.18 [7.13, 7.25] | 7.03 [6.92, 7.11] | < 0.001 |
PCO2 (mmHg) | 42.8 [36.0, 51.2] | 41.5 [36.8, 49.7] | 42.3 [36.3, 50.5] | 43.5 [35.7, 52.3] | 43.5 [35.1, 52.5] | 0.554 |
Bicarbonate level (mmol/l) | 17.5 [14.0, 20.4] | 21.8 [20.7, 22.9] | 19.1 [17.8, 20.0] | 16.0 [15.0, 16.9] | 10.8 [8.7, 12.7] | < 0.001 |
Urea level (mmol/l) | 7.3 [5.7, 10.2] | 6.8 [5.3, 8.9] | 7.3 [5.8, 9.8] | 7.5 [5.8, 10.6] | 8.1 [5.7, 13.2] | < 0.001 |
Creatinine level (µmol/l) | 106 [78, 146] | 87 [69, 111] | 102 [77, 130] | 114 [86, 148] | 136 [101, 190] | < 0.001 |
Phosphorus level (mmol/l) | 1.7 [1.1, 2.5] | 1.2 [0.9, 1.7] | 1.4 [1.0, 1.9] | 1.9 [1.3, 2.5] | 2.9 [2.1, 3.8] | < 0.001 |
Lactate level (mmol/l) | 5.2 [2.5, 9.2] | 2.5 [1.6, 4.3] | 4.0 [2.3, 5.7] | 6.5 [3.5, 8.8] | 11.2 [7.6, 15.0] | < 0.001 |
Base deficit (mEq/l) | 8.8 [5.3, 13.2] | 3.6 [2.8, 4.5] | 6.8 [6.0, 7.9] | 10.8 [9.7, 11.9] | 17.8 [15.2, 21.0] | < 0.001 |
In-hospital characteristics | ||||||
Cardiac cause-related CA | 436 (56.2) | 136 (68.7) | 122 (61.3) | 103 (54.5) | 75 (39.5) | < 0.001 |
Post-resus. shock | 480 (58.1) | 87 (42.0) | 109 (52.9) | 119 (57.5) | 165 (80.1) | < 0.001 |
Acute kidney injurya | < 0.001 | |||||
No AKI | 243 (30.7) | 104 (51.5) | 71 (35.9) | 59 (30.3) | 9 (4.6) | |
KDIGO 1 | 65 (8.2) | 12 (5.9) | 27 (13.6) | 19 (9.7) | 7 (3.6) | |
KDIGO 2 | 45 (5.7) | 17 (8.4) | 13 (6.6) | 10 (5.1) | 5 (2.6) | |
KDIGO 3 | 438 (55.4) | 69 (34.2) | 87 (43.9) | 107 (54.9) | 175 (89.7) | |
Coronary angiography | 556 (67.3) | 145 (70.0) | 150 (72.8) | 135 (65.2) | 126 (61.2) | 0.019 |
Therapeutic hypothermia | 717 (86.8) | 186 (89.9) | 182 (88.3) | 185 (89.4) | 164 (79.6) | 0.005 |
RRT at day-1 | 335 (40.6) | 42 (20.4) | 56 (27.2) | 89 (43.0) | 148 (71.8) | < 0.001 |