variables | Favourable neurological outcome, n = 35 | Unfavourable neurological outcome, n = 131 | P value |
---|---|---|---|
Age (y) | 53.0 (43.0, 64.5) | 63.0 (50.0, 70.0) | 0.004 |
Male sex, n (%) | 26 (74.3) | 102 (77.9) | 0.655 |
Cardiac arrest witnessed, n (%) | 24 (68.6) | 88 (67.2) | 0.876 |
Bystander CPR attempt, n (%) | 25(71.4) | 63(48.1) | 0.014 |
Initial recorded cardiac arrest rhythm, n (%) | Â | Â | 0.709 |
 VF or pulseless VT | 22 (62.9) | 89 (67.9) |  |
 Pulseless electrical activity | 7 (20.0) | 23 (17.6) |  |
 Asystole | 6 (17.1) | 19 (14.5) |  |
Gasping during transportation by EMS, n (%) | 20 (57.1) | 18 (13.7) | < 0.001 |
Aetiology of cardiac arrest, n (%) | Â | Â | 0.222 |
 Cardiac, n (%) | 25 (71.4) | 106 (80.9) |  |
 No cardiac, n (%) | 10 (28.6) | 25 (19.1) |  |
  Pulmonary embolism | 1 | 2 |  |
  Subarachnoid haemorrhage | 0 | 3 |  |
  Accidental hypothermia | 8 | 6 |  |
  Acute aortic dissection | 0 | 3 |  |
  Respiratory disease |  |  |  |
   Pneumonia | 0 | 1 |  |
   Chronic obstructive pulmonary disease | 0 | 1 |  |
   Asthma | 0 | 1 |  |
   Other | 1 | 8 |  |
Epinephrine dose before hospital admission, mg | 0.0 (0.0, 2.0) | 2.0 (0.0, 3.0) | 0.002 |
Cardiac rhythm at admission | Â | Â | 0.009 |
 ROSCa | 6 (17.1) | 4 (3.1) |  |
 VF or pulseless VT | 19 (54.3) | 59 (45.0) |  |
 Pulseless electrical activity | 6 (17.1) | 46 (35.1) |  |
 Asystole | 4 (11.4) | 22 (16.8) |  |
Low-flow duration, min | 42.00 (30.00, 55.00) | 46.00 (36.00, 54.00) | 0.299 |
No-flow duration, min, median, n = 115b | 0.00 (0.00, 1.50), n = 26b | 2.00 (0.00, 10.00), n = 89b | 0.006 |
pH at admission, n = 162c | 6.94 (6.88, 7.06), n = 35 | 6.90 (6.81, 7.02), n = 127 | 0.098 |
Serum lactate at admission, n = 158c | 13.7 (8.7, 16.0), n = 35 | 12.7 (11.0, 15.2), n = 123 | 0.948 |
Epinephrine administration after admission, mg | 1.0 (0.0, 2.0) | 1.0 (0.0, 3.0) | 0.036 |
Intra-aortic balloon pumping, n (%) | 26 (74.3) | 89 (67.9) | 0.470 |
Percutaneous coronary intervention, n (%) | 16 (45.7) | 62 (47.3) | 0.865 |
Therapeutic temperature management, n (%) | 26 (74.3) | 84 (64.1) | 0.259 |