Table 1.
Demography for all patients
| Characteristics of patients | All (n=42) |
| Age, years, mean (SD) | 65 (15) |
| Male sex, no (%) | 35 (83) |
| Body mass index, mean (SD) | 28 (7) |
| Charlson Comorbidity Index, median (Q1–Q3) | 3 (2–5) |
| Witnessed cardiac arrest, no. (%) | 34 (81) |
| Bystander CPR, no (%) | 37 (90) |
| Time to ACLS, min, median (Q1–Q3) | 10 (5–15) |
| Shockable initial rhythm, no. (%) | 31 (74) |
| Number of defibrillations, median (Q1–Q3) | 2 (1–4) |
| Time to ROSC, min, median (Q1–Q3) | 26 (19–35) |
| Presumed cardiac aetiology, no. (%) | 34 (81) |
| Circulatory shock in ER,* no. (%) | 18 (42) |
| Certain pulmonary aspiration, no. (%) | 9 (21) |
| Time to ICU admission, min, median (Q1–Q3) | 133 (102–168) |
| Initial pH, median (Q1–Q3) | 7.23 (7.03–7.28) |
| Initial base excess, mmol/L, median (Q1–Q3) | −10.2 (-14.5 to -6.2) |
| Initial lactate level, mmol/L, median (Q1–Q3) | 6.4 (2.9–11) |
| Simplified Acute Physiology Score II, mean (SD) | 67 (12) |
| Percutaneous coronary intervention, no (%) | 17 (40) |
| Left ventricular fractional shortening, %, mean (SD) | 27 (10) |
| Left ventricular ejection fraction ≥40 %, n (%) | 26 (62) |
| Wall motion score index, score, median (Q1–Q3) | 1.5 (1.1–1.8) |
| Left ventricular outflow tract velocity time integral, cm, mean (SD) | 16.5 (4.3) |
| Tricuspid annular plane systolic excursion, mm, mean (SD) | 18.5 (4.3) |
| Days in ICU, median (Q1–Q3) | 8 (4–12) |
| Days in hospital, median (Q1–Q3) | 15 (7–20) |
| 30 days mortality, no. (%) | 15 (36) |
*Systolic blood pressure <90 mmHg or in need of fluids and/or vasopressors to maintain systolic blood pressure >90 mmHg.
ACLS, advanced cardiovascular life support; CPR, cardiopulmonary resuscitation; ER, emergency room; ICU, intensive care unit; Q1–Q3, first to third quartile; ROSC, return of spontaneous circulation.