Table 3.
Main parameters
| Parameters | CPR groups | Chi-square test-P | |
|---|---|---|---|
|
| |||
| Manual, n (%) | Mechanical, n (%) | ||
| Etiology | |||
| Septic | 36 (29.3) | 60 (33.3) | 0.250 |
| Cardiac | 18 (14.6) | 39 (21.7) | |
| Trauma | 8 (6.5) | 10 (5.6) | |
| Undefined | 61 (49.6) | 71 (39.4) | |
| Traumatic | 8 (6.5) | 10 (5.6) | 0.732 |
| Initial arrest rhythm | |||
| Asystole/PEA | 102 (82.9) | 134 (74.4) | 0.081 |
| VF/pulseless VT | 21 (17.1) | 46 (25.6) | |
| CPR duration >20 min | 68 (55.3) | 81 (45) | 0.079 |
| CPR duration (min)-median (IQR) | 35 (10-45) | 20 (10-45) | 0.279* |
| All patients | |||
| ROSC | 62 (50.4) | 75 (41.7) | 0.133 |
| 7-day survival | 11 (8.9) | 35 (19.4) | 0.012 |
| 30-day survival and/or discharge | 9 (7.3) | 19 (10.6) | 0.339 |
| Atraumatic group (n=285) | |||
| ROSC | 59 (51.3) | 73 (42.9) | 0.184 |
| 7-day survival | 11 (9.6) | 34 (20.0) | 0.020 |
| 30-day survival and/or discharge | 9 (7.8) | 19 (11.2) | 0.420 |
*Mann Whitney-U test. PEA: Pulseless electrical activity, IQR: Interquartile range, ROSC: Return of spontaneous circulation, VF: Ventricular fibrillation, VT: Ventricular tachycardia