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Table 1 Patient characteristics according to the status of renal replacement therapy in patients who developed stage 3 acute kidney injury after out-of-hospital cardiac arrest

From: Renal replacement therapy is independently associated with a lower risk of death in patients with severe acute kidney injury treated with targeted temperature management after out-of-hospital cardiac arrest

 

Total (n = 223)

Non-RRT group (n = 108)

RRT group (n = 115)

P value

Baseline characteristics

 Age, years

61 (49–73)

64 (52–73)

61 (49–73)

0.39

 Male gender

156 (70.3)

71 (65.7)

85 (74.6)

0.15

 Body weight, kg

69 (60–75)

65 (59–73)

69 (60–75)

0.16

Past medical history

 Hypertension

104 (46.6)

55 (50.9)

49 (42.6)

0.21

 Heart failure

10 (4.5)

4 (3.7)

6 (5.2)

0.75

 Diabetes mellitus

65 (29.1)

35 (32.4)

30 (26.1)

0.30

Cardiac arrest

 Arrest location

   

0.09

  Home

126 (56.5)

67 (62.0)

59 (51.3)

 

  Workplace

10 (4.5)

4 (3.7)

6 (5.2)

 

  Street

47 (21.1)

19 (17.6)

28 (24.3)

 

  Public building

30 (13.5)

16 (14.8)

14 (12.2)

 

  Nursing home

5 (2.2)

1 (0.9)

4 (3.5)

 

  Unknown

5 (2.2)

1 (0.9)

4 (3.5)

 

Witnessed arrest

138 (62.7)

62 (58.5)

76 (66.7)

0.21

Bystander CPR

136 (62.1)

64 (59.8)

72 (64.3)

0.50

Time from collapse to CPR, min

1 (0–7)

3 (0–8)

1 (0–7)

0.58

Time from CPR to ROSC, min

40 (26–53)

40 (29–50)

40 (26–53)

0.75

Epinephrine, mg

2 (1–7)

3 (1–5)

2 (1–7)

0.83

 Initial rhythm

   

0.04

  Vf

48 (21.5)

12 (11.1)

36 (31.3)

 

  Pulseless VT

1 (0.4)

1 (0.9)

0 (0.0)

 

  PEA

47 (21.1)

24 (22.2)

23 (20.0)

 

  Asystole

91 (40.8)

55 (50.9)

36 (31.3)

 

  Unknown shockable

4 (1.8)

2 (1.9)

2 (1.7)

 

  Unknown non-shockable

1 (0.4)

0 (0.0)

1 (0.9)

 

  Unknown

31 (13.9)

14 (13.0)

17 (14.8)

 

 Arrest cause

   

< 0.001

  Medical or unknown

168 (75.3)

68 (63.0)

100 (87.0)

 

  Trauma

5 (2.2)

3 (2.8)

2 (1.7)

 

  Submersion

5 (2.2)

4 (3.7)

1 (0.9)

 

  Drug overdose

3 (1.3)

1 (0.9)

2 (1.7)

 

  Asphyxia

12 (5.4)

10 (9.3)

2 (1.7)

 

  Hanging

30 (13.5)

22 (20.4)

8 (7.0)

 

Post-resuscitation

 Lactate after ROSC, mmol/L

12.2 (8.9–14.8)

11.4 (8.6–14.5)

12.2 (8.9–14.8)

0.36

 Shock after ROSC

210 (94.2)

101 (93.5)

109 (94.8)

0.69

 TT of 36 °C

47 (21.1)

18 (16.7)

29 (25.2)

0.12

 TTM duration of 48 h

5 (2.2)

3 (2.8)

2 (1.7)

0.68

Adverse events during 7 days since ROSC

 Seizure

38 (17.0)

17 (15.7)

21 (18.3)

0.62

 Bleeding

16 (7.2)

3 (2.8)

13 (11.3)

0.02

 Sepsis

54 (24.2)

24 (22.2)

30 (26.1)

0.50

 Hypoglycaemia

44 (19.7)

18 (16.7)

26 (22.6)

0.27

 Sustained hyperglycaemia

153 (68.6)

72 (66.7)

81 (70.4)

0.55

 Tachycardia

49 (22.1)

24 (22.2)

25 (21.9)

0.96

 Bradycardia

6 (2.7)

3 (2.8)

3 (2.6)

1.00

 Re-arrest

55 (24.8)

22 (20.6)

34 (28.7)

0.16

  1. Values are expressed as number (%) or median (interquartile range)
  2. P < 0.05 are presented in bold
  3. CPR cardiopulmonary resuscitation, PEA pulseless electrical activity, ROSC return of spontaneous circulation, RRT renal replacement therapy, TT target temperature, TTM targeted temperature management, Vf ventricular fibrillation, VT ventricular tachycardia