Table 2 Comparison of CPR- and ECMO-related characteristics between non-survivors and survivors

Locations of victims

0.472

 Public

15

10

5

 Home

5

2

3

 In-ambulance during transportation

2

1

1

 Other hospital

1

-

1

Time of collapse to CPR start, min

1 (1, 5)

4 (1, 6)

1 (1, 1.75)

0.166

Bystander CPR

14

6

8

0.197

First monitored rhythm

0.685

 Shockable

10

5

5

 Non-shockable

13

8

5

Transport time from collapse to hospital, min

22 (15, 38)

22 (15, 51)

21 (13, 30)

0.910

EKG rhythm on arrival at ED

0.177

 Vf/VT

20

12

8

 PEA

2

-

2

 Asystole

1

1

-

Collapse to ECMO time, min

84 (61, 101)

94 (72.5, 127)

64.5 (55.25, 89.75)

0.101

CPR time, min

62 (53, 86)

66 (58.5, 108)

57.5 (40.5, 73.75)

0.101

ROSC ≥ 20 min during CPR

3

2

1

1.000

Door to ECMO time, min

55 (41, 67)

62 (49, 71.5)

45 (32.5, 56.5)

0.030^a

ROSB at ICU arrival

17

10

7

1.000

Pre-ECMO VIS

41.0 (16.4, 76.2)

63.5 (0, 93.8)

39.6 (31.7, 71.6)

0.832

Post-ECMO VIS; at 6 h on ICU arrival

7.6 (0, 22.6)

11.3 (3.4, 58.4)

0 (0, 7.8)

0.030^a

24 h urine output (ml · kg⁻¹ · h⁻¹)

0.92 (0.03, 2.33)

0.1 (0–0.92)

2.39 (1.59, 3.86)

<0.001^a

Pupil diameter on arrival at ED, mm

6 (6, 7)

7 (6, 7)

6 (3.5, 7.25)

0.414

Pupil reflex positive after ECMO

15

6

10

0.007^a

Hypothermia for 24 h

18

12

6

0.127

ECMO duration, h

98 (60, 192)

75 (18.5, 122)

151 (97.25,219.25)

0.008^a

CPC grade

 1

7

 4

3