Table 2 Cardiac arrest causes, initial rhythm, and cardiopulmonary resuscitation variables
TH group | Control group | P value | |
|---|---|---|---|
Causes of cardiac arrest | |||
STEMI | 12 (30.0) | 13 (32.5) | 0.809 |
NSTEMI/unstable angina | 8 (20.0) | 3 (7.5) | 0.104 |
Complication of congestive heart failure | 8 (20.0) | 9 (22.5) | 0.785 |
Pulmonary embolism | 2 (5.0) | 3 (7.5) | 0.644 |
Metabolic | 2 (5.0) | 4 (10.0) | 0.396 |
Secondary hypoxic | 5 (12.5) | 6 (15.0) | 0.745 |
Unknown | 3 (7.5) | 2 (5.0) | 0.644 |
Initial rhythm | |||
Ventricular fibrillation | 21 (52.5) | 18 (45.0) | 0.655 |
Asystole | 15 (37.5) | 14 (35.0) | 1.000 |
Pulseless electrical activity | 4 (10.0) | 8 (20.0) | 0.348 |
CPR variables | |||
Time from collapse to any resuscitation attempt, minutes | 4.0 ± 3.0 | 4.5 ± 3.4 | 0.454 |
Time from collapse to ROSC, minutes | 26.8 ± 16.9 | 25.4 ± 13.9 | 0.695 |
Any bystander CPR attempt | 26 (65.0) | 17 (42.5) | 0.043 |
Cumulative defibrillation energy in ventricular fibrillation patients, J | 877 ± 763 | 1,097 ± 1,099 | 0.468 |
Cumulative epinephrine dose, mg | 4.7 ± 4.5 | 4.5 ± 3.6 | 0.892 |
Device-based heart massage | 5 (12.5) | 4 (10.0) | 0.723 |