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Table 1 Responders versus non-respondersA,B

From: Methylene blue for vasodilatory shock in the intensive care unit: a retrospective, observational study

 

Responders, n=88 (39.5%)

Non-Responders, n=135 (60.5%)

p-value

Male gender (%)

60 (68.2%)

95 (70.4%)

0.73

Age (years)

63 (13.4)

62 (15.5)

0.55

Weight (kg)

96.2 (24.3)

90.4 (25.1)

0.09

MB bolus only (%)

44 (50%)

85 (63.0%)

0.056

MB bolus and infusion (%)

39 (44.3%)

45 (33.3%)

0.098

MB bolus dose (mg/kg)

1.68 (0.49)

1.71 (0.43)

0.62

> 1 MB bolus administered (%)

14 (15.9%)

24 (17.8%)

0.72

MB infusion rate (mg/kg/hr)

0.48 (0.21)

0.45 (0.21)

0.54

MB infusion duration (hours)

11.8 (9.5)

16.7 (13.4)

0.06

MAP 1 hour prior to MB (mmHg)

61.3 (9.2)

67 (9.3)

<0.001

MAP 2 hours after MB (mmHg)

76.4 (11.1)

61 (15.5)

<0.001

NE infusion rate 1 hour after MB (mcg/min)

55 (39.1)

54 (42)

0.86

NE infusion rate 2 hours after MB (mcg/min)

49 (30.5)

53 (44.1)

0.41

VP infusion rate 2 hours after MB (units/min)

0.06 (0.03)

0.05 (0.02)

0.11

EPI infusion rate 2 hours after MB (mcg/min)

6.1 (3.9)

6.9 (5.8)

0.36

Lactate 2 hours after MB (mmol/L)

10.3 (6.1)

9.0 (5.2)

0.48

SOFA Score

13 (2.96)

13 (2.72)

0.31

Survival to hospital discharge (%)

19 (21.6%)

20 (14.8%)

0.19

CRRT (%)

57 (64.8%)

91 (67.4%)

0.68

IV fluids administered in first 24 hours (mL)

3645 (3221)

2548 (3143)

0.01

  1. A 13 patients did not have sufficient data to be included in the responders vs. non-responders group
  2. B Data reported as mean (+/- standard deviation) unless otherwise denoted with the percentage symbol
  3. Abbreviations: CRRT Continuous renal replacement therapy, IV Intravenous, MB Methylene blue, NE Norepinephrine, VP Vasopressin, EPI Epinephrine, SOFA Sequential organ failure assessment