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Table 1 General characteristics, hemodynamics, perfusion parameters, fluids, vasopressors, and outcomes for the propensity-matched cohort

From: Effects of very early start of norepinephrine in patients with septic shock: a propensity score-based analysis

 

All

Very early-VPs (n = 93)

Delayed-VPs (n = 93)

p

General characteristics

 Age, years

64 (52–74)

63 (51–74)

65 (53–75)

0.55

 Male sex, n (%)

 Weight, kg

69 (58–77)

70 (57–80)

65 (59–72)

0.08

 APACHE II

16 (13–21)

16 (13–19)

16 (13–23)

0.22

 SOFA day 1

9 (7–12)

9 (8–12)

10 (7–12)

0.93

 Infection source, n (%)

  Lung

60 (32.4)

33 (35.9)

27 (29.0)

0.35

  Genitourinary

33 (17.7)

17 (18.3)

16 (17.2)

1.00

  Abdominal

64 (34.4)

29 (31.2)

35 (37.6)

0.44

  Soft tissue

17 (9.1)

9 (9.7)

8 (8.6)

1.00

  Bacteremia

39 (21.0)

17 (18.3)

22 (23.7)

0.47

  Other

11 (5.9)

7 (7.5)

4 (4.3)

0.54

 Origin

   

0.56

  Emergency room

135 (72.6)

66 (71.0)

69 (74.2)

 

  General ward

24 (12.9)

11 (11.8)

13 (14.0)

 

  Intensive care unit

27 (14.5)

16 (17.2)

11 (11.8)

 

 Comorbidities, n (%)

  Hypertension

73 (39.2)

34 (36.6)

39 (41.9)

0.55

  Coronary disease

9 (4.8)

4 (4.3)

5 (5.4)

1.00

  Chronic heart failure

15 (8.1)

7 (7.5)

8 (8.6)

1.00

  ESRF

12 (6.5)

5 (5.4)

7 (7.5)

0.77

  Previous stroke

3 (1.6)

3 (3.2)

0 (0.0)

0.25

  Chronic atrial fibrillation

12 (6.5)

12 (6.5)

12 (6.5)

1.00

  Diabetes

36 (19.4)

18 (19.4)

18 (19.4)

1.00

  Cancer

38 (20.4)

21 (22.6)

17 (18.3)

0.59

  COPD

20 (10.8)

14 (15.1)

6 (6.5)

0.10

  Chronic use steroids

28 (15.1)

9 (9.7)

19 (20.4)

0.06

  Cirrhosis

12 (6.5)

4 (4.3)

8 (8.6)

0.16

  Acute myocardial infarction

3 (1.6)

2 (2.2)

1 (1.1)

1.00

  Acute heart failure

12 (6.5)

8 (8.6)

4 (4.3)

0.37

  Acute stroke

6 (3.2)

2 (2.2)

4 (4.3)

0.68

  Acute atrial fibrillation

9 (4.8)

2 (2.2)

7 (7.5)

0.17

Septic shock definition

   

0.19

 Sepsis + VP + hyperlactatemia, n (%)

127 (68.3)

64 (68.8)

63 (67.7)

 

 Sepsis + VP, n (%)

59 (31.7)

29 (31.2)

30 (32.3)

 

Supportive/rescue therapies

 Steroid use, n (%)

114 (61.3)

57 (61.3)

57 (61.3)

1.00

 Vasopressin use, n (%)

63 (33.9)

29 (31.2)

34 (36.6)

0.54

 Acute RRT

35 (27.6)

18 (28.1)

17 (27.0)

0.50

Time intervals

 Up to VPs

  From first hypotension to VPs

2 (0–4)

1 (0–2)

3 (2–5)

< 0.001

  From FRLoad to VPs

0 (0–3)

0 (0–1)

3 (1–4)

< 0.001

 Up to ICU admission

  From VPs to ICU admission

2 (0–4)

1 (0–3)

1 (0–4)

0.87

  From first hypotension to ICU admission

3 (1–4)

3 (1–4)

3 (2–4)

0.91

  From FRLoad to ICU admission

2 (0–4)

2 (1–3)

2 (1–3)

0.78

 Up to antibiotic start

  From first hypotension to antibiotics

2 (0–5)

3 (1–5)

1 (−3–5)

0.04

Hemodynamics, perfusion parameters

 At FRLoad

  SAP

88 (78–98)

89 (79–100)

88 (77–97)

0.61

  DAP

47 (40–55)

47 (41–55)

47 (40–54)

0.90

  MAP

59 (54–65)

59 (54–67)

60 (55–66)

0.74

  HR

105 (90–118)

103 (90–118)

106 (90–118)

0.73

  PP

40 (30–53)

41 (31–54)

40 (30–50)

0.73

  DSI

2.26 (1.84–2.68)

2.13 (1.81–2.56)

2.12 (1.80–2.56)

0.91

 At VPs

  SAP

89 (82–102)

92 (83–102)

88 (82–100)

0.22

  DAP

48 (42–55)

48 (41–54)

48 (42–55)

0.85

  MAP

57 (55–66)

57 (56–59)

57 (55–59)

0.57

  HR

102 (87–118)

100 (87–118)

104 (89–117)

0.73

  PP

41 (32–53)

43 (31–55)

41 (34–50)

0.56

  DSI

2.17 (1.71–2.56)

2.17 (1.70–2.62)

2.17 (1.75–2.60)

0.83

 pH arterial

7.33 (7.26–7.39)

7.32 (7.25–7.39)

7.34 (7.26–7.39)

0.50

 BE arterial

− 8.0 (− 11.9 to − 4.1)

− 7.8 (− 11.4 to − 3.9)

− 8.2 (−12.0 to − 4.2)

0.43

 SvO2, %, n

71.5 (64.5–79.5), 96

72.2 (62.8–80.5), 46

71.5 (68.0–78.5), 50

0.67

 Pv-aCO2, mmHg, n

4.4 (3.5–6.4), 95

4.8 (3.8–6.1), 46

4.1 (3.5–6.4), 49

0.69

 PvaCO2/Da-vO2 ratio, n

1.41 (1.01–1.98), 79

1.44 (1.01–1.93), 41

1.38 (1.02–2.14), 39

0.87

 Lactate initial, mmol/L, n

2.4 (1.5–4.5), 186

2.4 (1.6–4.2), 93

2.6 (1.3–4.6), 93

0.84

 Lactate 6H, mmol/L

2.0 (1.1–3.8), 186

1.9 (1.1–3.2), 93

2.1 (1.1–4.0), 93

0.55

 Lactate 24H, mmol/L, n

1.7 (1.1–3.2), 158

1.6 (1.0–2.7), 80

1.9 (1.1–4.5), 78

0.04

 CVP at VP, mmHg, n

7 (5–12), 29

11 (7–13), 11

6 (4–9), 18

0.09

 CVP at 6H, mmHg, n

8 (5–12), 82

7 (5–12), 40

8 (5–12), 42

0.98

 CVP at 24H, mmHg, n

8 (6–13), 107

8 (6–12), 52

10 (6–15), 55

0.28

Fluids/VP/inotropics

 Cumulated volume of resuscitation fluids, mL

  FRLoad to VPs

590 (0–1565)

0 (0–500)

1500 (650–2300)

< 0.001

  VPs to 2H

1000 (450–1900)

500 (200–1100)

1700 (1000–2700)

< 0.001

  VPs to 4H

1230 (500–2350)

700 (300–1500)

1800 (1000–2880)

< 0.001

  VPs to 6H

1500 (750–2500)

900 (500–1500)

2000 (1400–3100)

< 0.001

  VPs to 8H

1750 (900–3000)

1100 (500–1900)

2600 (1600–3800)

< 0.001

 Cumulated volume of resuscitation fluids, mL/kg

  FRLoad to VPs

8.8 (0.0–25.0)

0.0 (0.0–8.8)

21.9 (9.0–37.0)

< 0.001

  VPs to 2H

16.0 (6.3–30.0)

7.3 (3.2–17.8)

25.0 (15.1–41.8)

< 0.001

  VPs to 4H

18.7 (8.1–33.3)

10.0 (4.3–21.6)

28.3 (17.1–45.4)

< 0.001

  VPs to 6H

23.1 (10.0–38.5)

12.5 (6.9–24.1)

28.6 (21.9–50.0)

< 0.001

  VPs to 8H

25.9 (12.5–44.5)

16.7 (8.6–27.3)

42.5 (24.3–58.1)

< 0.001

 Delta of resuscitation fluids, mL

  VPs to 2H

175 (0–500)

200 (0–500)

0 (0–400)

0.16

  2H to 4H

0 (0–300)

0 (0–400)

0 (0–300)

0.92

  4H to 6H

0 (0–370)

0 (0–300)

0 (0–400)

0.11

  6H to 8H

0 (0–500)

0 (0–300)

300 (0–630)

< 0.001

 Net fluid balance

  At FRLoad

552 (0–2507)

310 (0–1750)

340 (0–2500)

0.19

  At VPs

1989 (661–3700)

760 (10–2300)

2090 (920–3260)

< 0.001

  At 6H

2594 (1469–5055)

1760 (1070–3410)

2680 (1470–4480)

< 0.001

  At 24H

4762 (3197–7049)

3905 (2370–5100)

5400 (3790–7290)

< 0.001

 Norepinephrine max. dose, μg/kg/min

0.26 (0.13–0.48)

0.26 (0.11–0.45)

0.28 (0.15–0.53)

0.32

 Dobutamine max. dose, μg/kg/min, n

5.2 (3.0–10.2), 28

5.0 (3.7–7.0), 13

6.6 (3.0–11.6), 15

0.55

Clinical outcomes

 LOS-ICU

9 (5–17)

9 (5–18)

8 (4–17)

0.30

 LOS-Hospital

16 (7–32)

17 (9–32)

15 (6–30)

0.11

 Mechanical ventilation-free days

22 (0–28)

23 (14–28)

21 (0–26)

0.03

 RRT-free days

6 (0–18)

8 (1–18)

1 (0–13)

0.26

 Mortality of 28 days, n (%)

53 (28.5)

17 (18.3)

36 (38.7)

0.03

  1. APACHE II acute physiology and chronic health evaluation, SOFA sequential organ failure assessment, CHF cardiac heart failure, ESRF end-stage renal failure, COPD chronic obstructive pulmonary disease, VP vasopressor, VPs vasopressor start, FRLoad first fluid load with resuscitative intention, SAP systolic arterial pressure, DAP diastolic arterial pressure, MAP mean arterial pressure, HR heart rate, PP pulse pressure, DSI diastolic shock index (HR to DAP ratio), BE base excess, SvO2 oxygen venous saturation, Pv-aCO2 venous-to-arterial carbon dioxide difference, PvaCO2/Da-vO2 ratio venous-arterial carbon dioxide to arterial-venous oxygen differences ratio, CVP central venous pressure, LOS-ICU intensive care unit - length of stay, LOS-Hospital hospital - length of stay, RRT renal replacement therapy
  2. *Including only patients receiving renal replacement therapy at least for one session