From: Between-centre differences in care for in-hospital cardiac arrest: a prospective cohort study
Characteristic | Total number of patients | Survivors (N = 230) | Non-survivors (N = 471) |
---|---|---|---|
Pre-arrest | |||
Age (median [IQR]) | 701 | 67 [56, 73] | 70 [62, 77] |
Female (%) | 701 | 83 (36.1) | 165 (35.0) |
Charlson comorbidity score (median [IQR])* | 701 | 1 [0, 2] | 2 [0, 3] |
Pre-arrest CPC (%) | 676 | Â | Â |
 0—asymptomatic |  | 192 (85.3) | 334 (74.1) |
 1—Good cerebral performance |  | 26 (11.6) | 72 (16.0) |
 2—Moderate cerebral disability |  | 3 (1.3) | 32 (7.1) |
 3—Several cerebral disability |  | 4 (1.8) | 12 (2.7) |
 4—coma or vegetative state |  | 0 (0.0) | 1 (0.2) |
Pre-arrest MRS (%) | 674 | Â | Â |
 0—asymptomatic |  | 104 (46.6) | 148 (32.8) |
 1—No significant disability |  | 73 (32.7) | 155 (34.4) |
 2—Slight disability |  | 22 (9.9) | 67 (14.9) |
 3—moderate disability |  | 19 (8.5) | 64 (14.2) |
 4—Moderately severe disability |  | 3 (1.3) | 14 (3.1) |
 5—severe disability |  | 2 (0.9) | 3 (0.7) |
Any RRS score registered 24 before arrest (%) | 701 | 51 (23.4) | 179 (38.0) |
Type of RRS score | 234 | Â | Â |
 EWS |  | 20 (36.4) | 69 (38.5) |
 MEWS |  | 13 (23.6) | 50 (27.9) |
 NEWS |  | 3 (5.5) | 9 (5.0) |
 Own system |  | 10 (18.2) | 29 (16.2) |
 Not specified |  | 9 (16.4) | 22 (12.3) |
Trauma (%) | 694 | 6 (2.6) | 14 (3.0) |
Sepsis (%) | 691 | 19 (8.3) | 65 (14.1) |
Reversible diagnosis of arrest (%) | 689 | Â | Â |
 Hypoxia |  | 70 (31.0) | 173 (37.4) |
 Hypovolemia |  | 37 (16.4) | 83 (17.9) |
 Hypothermia |  | 0 (0.0) | 0 (0.0) |
 Hypo-/Hyperkalemia/metabolic |  | 8 (3.5) | 22 (4.8) |
 Tamponade |  | 8 (3.5) | 25 (5.4) |
 Thrombo-embolic |  | 86 (38.1) | 145 (31.3) |
 Toxines |  | 15 (6.6) | 11 (2.4) |
 Tension pneumothorax |  | 2 (0.9) | 4 (0.9) |
Hypotension before the arrest** (%) | 649 | Â | Â |
 Yes |  | 32 (15.0) | 69 (15.8) |
 Yes, with vasopressors |  | 8 (3.8) | 32 (7.3) |
 No |  | 173 (81.2) | 335 (76.8) |
Location (%) | 701 | Â | Â |
 Ward |  | 77 (33.5) | 240 (51.0) |
 Emergency department |  | 26 (11.3) | 44 (9.3) |
 Intensive care unit |  | 40 (17.4) | 65 (13.8) |
 Cardac care unit |  | 28 (12.2) | 54 (11.5) |
 Interventional radiology theatre |  | 15 (6.5) | 25 (5.3) |
 Operation theatre |  | 19 (8.3) | 13 (2.8) |
 Other |  | 8 (3.5) | 5 (1.1) |
During arrest | |||
Shockable rhythm (%) | 701 | 102 (44.3) | 82 (17.4) |
Witnessed arrest (%) | 701 | 212 (92.2) | 339 (72.0) |
Time of day | 678 | Â | Â |
 Day (08:00–16:00), (%) |  | 68 (30.2) | 168 (37.1) |
 Evening (16:00–22:00), (%) |  | 127 (56.4) | 208 (45.9) |
 Night (22:00–08:00), (%) |  | 30 (13.3) | 77 (17.0) |
Time to ALS, min (median [IQR]) | 694 | 2 [0, 3] | 2 [1, 4] |
ECMO started during CPR (ECPR) | 700 | 7 (3.1) | 15 (3.2) |
CPR duration, ROSC | 395 | 5 [2, 10] | 10 [5, 20] |
CPR Duration, no ROSC | 306 | – | 30 [21, 50] |