Table 2 Comparison between the favorable and unfavorable outcome groups
Favorable outcome (n = 10) | Unfavorable outcome (n = 40) | P value | |
|---|---|---|---|
Age, years | 48 ± 18 | 52 ± 22 | 0.642 |
10–29 years, n (%) | 2 (4) | 7 (14) | 0.224 |
30–49 years, n (%) | 2 (4) | 12 (24) | |
50–69 years, n (%) | 6 (12) | 12 (24) | |
70+ years, n (%) | 0 (0) | 9 (18) | |
Male, n | 5 | 28 | 0.277 |
Witnessed, n (%) | 7 (14) | 29 (58) | 1.000 |
Bystander CPR, n (%) | 4 (8) | 28 (56) | 0.138 |
Initial rhythms at the scene | |||
VF/pulseless VT, n (%) | 9 (18) | 28 (56) | 0.258 |
Asystole/PEA, n (%) | 1 (2) | 12 (24) | |
Initial rhythms on arrival | |||
VF/pulseless VT, n (%) | 8 (16) | 19 (38) | 0.085 |
Asystole/PEA, n (%) | 2 (4) | 21 (42) | |
BLS-TOR rule | |||
Satisfied, n (%) | 0 (0) | 7 (14) | 0.319 |
Unsatisfied, n (%) | 10 (20) | 33 (66) | |
ALS-TOR rule | |||
Satisfied, n (%) | 0 (0) | 1 (2) | 1.000 |
Unsatisfied, n (%) | 10 (20) | 39 (78) | |
Comorbid diseases | |||
Cardiac diseases, n (%) | 1 (2) | 12 (24) | 0.258 |
Other, n (%) | 1 (2) | 2 (4) | 0.496 |
Complications of ECPR, n (%) | 0 (0) | 6 (12) | 0.571 |
Body temperature, °C | 29.9 ± 6.1 | 31.8 ± 4.7 | 0.303 |
Pupil diameter, mm | 5.1 ± 2.0 | 5.4 ± 1.4 | 0.501 |
Positive light reflex, n (%) | 2 (4) | 6 (12) | 0.653 |
Laboratory data on arrival | |||
Arterial blood pH | 7.10 ± 0.08 | 6.87 ± 0.25 | <0.001 |
PaCO2, mmHg | 52 ± 21 | 85 ± 37 | 0.010 |
PaO2, mmHg | 150 ± 129 | 86 ± 99 | 0.096 |
Base excess, mEq/L | −14.7 ± 3.8 | −19.3 ± 7.7 | 0.014 |
Lactate, mg/dL | 101 ± 27 | 136 ± 56 | 0.061 |
Serum potassium, mEq/L | 4.7 ± 1.7 | 4.8 ± 1.6 | 0.768 |
Circulatory arrest time, min | 4.7 ± 5.8 | 8.1 ± 11.2 | 0.355 |
CPR duration, min | 78 ± 46 | 85 ± 49 | 0.647 |
Door to ECPR initiation, min | 30 ± 20 | 39 ± 23 | 0.231 |
ECMO duration, h | 46 ± 46 | 36 ± 49 | 0.536 |