Skip to main content

Table 1 Baseline characteristics and pre-hospital data stratified by 30-day survival status

From: Mechanical circulatory support for refractory out-of-hospital cardiac arrest: a Danish nationwide multicenter study

Variable

Total

(n = 259)

Survivors

(n = 67)

Non-survivors

(n = 192)

P-value

Age (years)

53 [45–60]

54 [46–62]

53 [43–59]

0.19

Age ≤ 65 years

221 (85)

56 (84)

165 (86)

0.64

Male sex

205 (79)

50 (75)

155 (81)

0.29

Comorbidities

    

History of ischemic heart disease

30 (12)

9 (13)

21 (11)

0.58

Previous myocardial infarction

28 (11)

8 (12)

20 (11)

0.75

History of congestive heart disease

19 (7)

4 (6)

15 (8)

0.62

Hypertension

65 (25)

18 (27)

47 (25)

0.73

Type 2 diabetes

26 (10)

3 (5)

23 (12)

0.06

Peripheral vascular disease

11 (4)

4 (6)

7 (4)

0.31

Previous chronic kidney disease

8 (3)

2 (3)

6 (3)

0.65

Previous stroke

10 (4)

0 (0)

10 (5)

0.05

Cause of cardiac arrest

    

Acute myocardial infarction

142 (55)

42 (63)

100 (52)

0.13

Pulmonary embolism

24 (9)

8 (12)

16 (8)

0.26

Primary arrhythmia

42 (16)

10 (15)

32 (17)

0.85

Chronic heart disease

5 (2)

1 (2)

4 (2)

1.00

Cerebral

6 (2)

0 (0)

6 (3)

0.34

Toxic

10 (4)

3 (5)

7 (4)

0.72

Other

20 (8)

4 (6)

16 (8)

0.79

Unknown

13 (4)

0 (0)

13 (5)

0.02

Witnessed arrest

223 (86)

60 (90)

163 (85)

0.34

Bystander CPR

246 (95)

64 (96)

182 (95)

0.94

Transient ROSC

48 (19)

27 (40)

21 (11)

 < 0.001

Signs of life during CPR

100 (39)

45 (67)

55 (29)

 < 0.001

Initial presenting rhythm

    

Shockable (VT/VF)

173 (67)

55 (82)

118 (62)

0.002

PEA

57 (22)

10 (15)

47 (25)

0.10

Asystole

28 (11)

2 (3)

26 (14)

0.02

End-tidal CO2

3.6 [2.8–5.0]

3.6 [2.9–5.0]

3.5 [2.5–5.0]

0.99

Mechanical compression (LUCAS)

235 (91)

61 (91)

174 (91)

0.97

No-flow (min)

0 [0–1]

0 [0–2]

0 [0–1]

0.77

Pre-hospital low-flow (min)

72 [58–90]

67 [46–90]

75 [60–90]

0.06

Total low-flow (min)

105 [86–125]

94 [73–120]

107 [90–127]

0.002

  1. Abbreviations: CPR Cardiopulmonary resuscitation; ROSC Return of spontaneous circulation; VT Ventricular tachycardia; VF Ventricular fibrillation; PEA Pulseless electrical activity; LUCAS Lund University cardiopulmonary assist system
  2. Values are stated as medians and interquartile range [IQR] or numbers and percentages. A p value < 0.05 is considered significant