Table 1.
Baseline characteristics.
| Group of characteristics | Characteristics | No ST elevation |
|
|---|---|---|---|
| Immediate CAG n = 38 |
Standard care n = 40 |
||
| Age years median (Q1-Q3) | 71 (62–78) | 70 (61–77) | |
| Male | 22 (57.9%) | 31 (77.5%) | |
| Pre-hospital characteristics | Location of arrest-Home | 22 (57.9%) | 25 (62.5%) |
| Bystander CPR | 28 (73.7%) | 30 (75.0%) | |
| Initial rhythm VT/VF | 20 (52.6%) | 22 (55.0%) | |
| Initial rhythm asystole | 8 (21.1%) | 4 (10.0%) | |
| Initial rhythm PEA | 7 (18.4%) | 13 (32.5%) | |
| Initial rhythm unknown | 3 (7.9%) | 1 (2.5%) | |
| Medical history | Ischemic heart disease | 9 (23.7%) | 10 (25.0%) |
| Previous myocardial infarction | 6 (15.8%) | 8 (20.0%) | |
| Previous PCI | 4 (10.5%) | 7 (17.5%) | |
| Previous CABG | 3 (7.9%) | 3 (7.5%) | |
| Heart failure | 7 (18.4%) | 6 (15.0%) | |
| COPD | 7 (18.4%) | 7 (17.5%) | |
| Previous Stroke | 6 (15.8%) | 4 (10.0%) | |
| Cancer | 7 (18.4%) | 6 (15.0%) | |
| Diabetes | 6 (15.8%) | 10 (25.0%) | |
| Measurements at emergency room | Pulse rate, bpm, median, (Q1-Q3) | 95 (80–117) | 90 (73–111) |
| Systolic blood pressure (mmHg) median (Q1-Q3) | 130 (107–149) | 125 (109–161) | |
| Glasgow Coma Scale, median (Q1-Q3) | 3 (3–4) | 3 (3–3) | |
| Troponin-T (ng/L) at admission to hospital, median (Q1-Q3) | 51 (25–149) | 54 (23–92) | |
| First arterial blood gas | pH (Q1-Q3) | 7.2 (7.1–7.3) | 7.2 (7.1–7.3) |
| PaO2 (kPa), median, (Q1-Q3) | 16.2 (11.1–39.8) | 18.5 (12.1–35.4) | |
| PaCO2 (kPa) median (Q1-Q3) | 5.7 (4.7–8.5) | 5.9 (5.1–8.0) | |
| Lactate (mmol/l) at admission, median (Q1-Q3) | 7.9 (5.7–9.9) | 7.5 (5.7–9.7) | |
| Presenting ECG | ST-elevation | 2 (5.2%) | 0 (0%) |
| ST-depression | 5 (13.2%) | 6 (15.0%) | |
| Right bundle branch block | 10 (26.3%) | 7 (17.5%) | |
| Known Left bundle branch block | 5 (13.2%) | 4 (10.0%) | |
| New Left bundle branch block | 0 (0%) | 1 (2.5%) | |
| Q-wave | 1 (2.6%) | 1 (2.5%) | |
| T-wave inversion | 1 (2.6%) | 2 (5.0%) | |
| Other, incl normal | 13 (34.2%) | 16 (40.0%) | |
| ECG rhythm | Sinus rhythm | 26 (68.4%) | 25 (62.5%) |
| Atrial fibrillation | 9 (23.7%) | 11 (27.5%) | |
| Ventricular tachycardia | 1 (2.6%) | 0 (0%) | |
| Other, incl AV-block | 2 (5.2%) | 3 (7.5%) | |
Categorical variables are presented as numbers (%). Continuous variables are presented as medians (Q1-Q3). Abbreviations: CPR: Cardio pulmonary resuscitation, VT: Ventricular Tachycardia, VF: Ventricular fibrillation, PEA: Pulseless electric activity, PCI: Percutaneous coronary intervention, CABG: Coronary artery bypass grafting, COPD: Chronic obstructive pulmonary disease.