Table 1 Baseline characteristics of Out Of Hospital Cardiac Arrest (OHCA) patients
Clinical Characteristic | Survival to discharge | ||
|---|---|---|---|
Yes, n = 88 | No, n = 373 | P-value | |
Male | 55 (62.5%) | 254 (68.1%) | 0.379 |
Age, median (IQR) | 59 (48, 70) | 59 (46, 72) | 0.668 |
Presumed cause of cardiac arrest | |||
Undetermined | 20 (22.7%) | 116 (31.1%) | 0.156 |
Myocardial infarction | 18 (20.4%) | 43 (11.5%) | 0.049 |
Electrolyte abnormalities | 13 (14.8%) | 53 (14.2%) | 1.000 |
Respiratory problem | 14 (15.9%) | 25 (6.7%) | 0.010 |
Other cardiac | 6 (6.8%) | 4 (1.1%) | 0.005 |
Major trauma | 4 (4.5%) | 84 (22.5%) | < 0.001 |
Sepsis | 3 (3.4%) | 5 (1.3%) | 0.182 |
Stroke | 3 (3.4%) | 5 (1.3%) | 0.182 |
Pulmonary embolism | 2 (2.3%) | 8 (2.1%) | 1.000 |
Other causes | 7 (8.0%) | 29 (7.8%) | 1.000 |
Mode of arrival | 0.003 | ||
EMS | 45/81 (55.6%) | 259/361 (71.7%) | |
Private transport | 30/81 (37.0%) | 69/361(19.1%) | |
During inter-hospital transfer | 6/81 (7.4%) | 33/361(9.1%) | |
Initial rhythm | 0.029 | ||
Asystole | 23/81 (28.4%) | 136/292 (46.6%) | |
PEA | 35/81 (43.2%) | 99/292 (33.9%) | |
VT/VF | 23/81 (28.4%) | 57/292 (19.5%) | |
BUN, mg/dL, median (IQR) | 20 (13, 39) | 15 (11, 27) | 0.010 |
Creatinine, mg/dL, median (IQR) | 1.42 (1.06, 2.60) | 1.32 (1.00, 1.88) | 0.337 |
Bicarbonate, mmol/L, median (IQR) | 15.4 (12.4, 18.2) | 13.2 (9.0, 17.0) | 0.002 |
Potassium, mmol/L, median (IQR) | 4.75 (4.07, 5.40) | 5.20 (4.20, 6.50) | 0.002 |
Sodium, mmol/L, median (IQR) | 140 (137, 143) | 140 (137, 144) | 0.179 |
Resuscitation outcomes | |||
Sustain ROSC | 88 (100%) | 130 (34.9%) | < 0.001 |
Survival to admission | 88 (100%) | 126 (33.8%) | < 0.001 |
AMA discharge | 72 (81.8%) | 0 (0%) | < 0.001 |