Table 2:
Clinical characteristics of ED arrests closest to the IHCA cohort and ED arrests closest to the OHCA cohort
| Variable | ED arrests closest to an IHCA center (n= 292) | ED arrests closest to an OHCA center (n=80) |
|---|---|---|
| Age, years | 61.1 (16.4) | 60.8 (16.3) |
| Female sex | 143 (49) | 30 (38) |
| Initial arrest rhythm VT/VF | 93 (32) | 32 (40) |
| PEA | 152 (52) | 14 (18) |
| Asystole | 30 (10) | 24 (30) |
| Unknown | 17 (6) | 10 (12) |
| Epinephrine intra-arrest | 2 [1–3] | 2.5 [2–4] |
| Bicarbonate intra-arrest | 0 [0–1] | 0 [0–2] |
| Shocks | 0 [0–1] | 1 [0–2] |
| Duration of arrest, minutes | 8 [4–15] | 11.5 [7.75–20.25] |
| Most advanced airway intra-arrest | ||
| None | 27 (9) | 4 (5) |
| Bag valve mask | 31 (11) | 4 (5) |
| New supraglottic | 0 (0) | 0 (0) |
| New ET | 144 (49) | 45 (56) |
| Pre-existing airway | 58 (20) | 19 (24) |
| Rearrests | 0 [0–1] | 0 [0–1] |
| PCAC | ||
| I | 145 (50) | 4 (5) |
| II | 43 (15) | 10(13) |
| III | 26 (9) | 5 (6) |
| IV | 46 (16) | 52 (65) |
| Survival to hospital discharge | 185 (64) | 10 (13) |
Data are presented using means with standard deviations (SD) for normally distributed continuous variables, median [interquartile range] for non-normal continuous variables, and raw number with corresponding percentages for categorical variables
Abbreviations:OHCA- out-of-hospital cardiac arrest; IHCA- in-hospital cardiac arrest; ED- emergency department; VT/VF- ventricular tachycardia or fibrillation; PEA- pulseless electrical activity; ET- endotracheal tube; PCAC- Pittsburgh Cardiac Arrest Category