Table 1.
Baseline characteristics.
| Characteristic | Group A + B | Group C + D | p Value |
|---|---|---|---|
| Age—yr | 63 ± 15 | 64 ± 12 | 0.802 |
| Male sex—no. (%) | 100 (82.6) | 43 (76.8) | 0.357 |
| Medical history Hypertension—no (%) | 68 (56.2) | 31 (55.4) | 0.917 |
| Medical history Diabetes—no (%) | 45 (37.2) | 12 (21.8) | 0.043 |
| Medical history Myocardial infarction—no (%) | 31 (25.6) | 14 (25.0) | 0.930 |
| Medical history Heart failure—no (%) | 19 (33.9) | 30 (24.8) | 0.207 |
| Witness Cardiac Arrest—no (%) | 78 (60.9) | 38 (59.4) | 0.835 |
| Bystander CPR 1—no (%) | 68 (53.1) | 26 (40.6) | 0.102 |
| Shockable rhythm—no (%) | 94 (74.0) | 44 (68.8) | 0.443 |
| Location Place of residence—no (%) | 55 (43.0) | 31 (48.4) | 0.473 |
| Location Public place—no (%) | 58 (45.3) | 27 (42.2) | 0.681 |
| Location Hospital—no (%) | 16 (12.5) | 5 (7.8) | 0.327 |
| Duration of cardiac arrest—min | 31 ± 20 | 28 ± 20 | 0.188 |
| Ejection fraction—% | 46 ± 17 | 50 ± 18 | 0.179 |
| Blood gas analysis Ph 2 | 7.09 ± 0.21 | 7.12 ± 0.23 | 0.300 |
| Blood gas analysis Lactate 3—mmol/L | 9.61 ± 3.68 | 11.28 ± 0.14 | 0.317 |
| Cause of Cardiac arrest | 0.044 | ||
| Acute Coronary Syndorome—no (%) | 55 (43.0) | 16 (25.0) | |
| Congestive Heart Failure—no (%) | 12 (9.4) | 11 (17.2) | |
| Old Myocardial Infarction—no (%) | 19 (14.8) | 12 (18.8) | |
| Arrhythmia—no (%) | 9 (7.0) | 10 (15.6) | |
| Cardiomyopathy—no (%) | 12 (9.4) | 5 (7.8) | |
| Pulmonary Embolism—no (%) | 2 (1.6) | 3 (4.7) | |
| Vasospastic Angina—no (%) | 10 (7.8) | 1 (1.6) | |
| Others—no (%) | 9 (7.0) | 6 (9.4) | |
| Urgent coronary angiography—no (%) | 104 (81.3) | 30 (46.9) | <0.001 |
| Urgent PCI 4—no (%) | 52 (40.6) | 11 (17.2) | 0.001 |
| IABP 5—no (%) | 91 (71.1) | 19 (30.2) | <0.001 |
| VA-ECMO 6—no (%) | 17 (13.3) | 2 (3.1) | 0.026 |
1 CPR indicates cardiopulmonary resuscitation. 2 Total number of patients; 158 in Ph, and 3 153 in lactate. 4 PCI indicates percutaneous coronary intervention; 5 IABP, intra-aortic balloon pumping; 6 VA-ECMO, veno-arterial extracorporeal membrane oxygenation.