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Table 2 Hemodynamic parameters and laboratory results prior to surgery in necrotizing soft tissue infection patients

From: The impact of operative time on the outcomes of necrotizing soft tissue infections: a multicenter cohort study

 

n

Mean ± SD or Median (IQR)

Reference values

Hemodynamic parameters

   

 Systolic blood pressure

155

114 ± 24

90–120 mmHg

 Diastolic blood pressure

155

65 ± 17

60–80 mmHg

 Mean arterial pressure

155

81 ± 18

70–100 mmHg

 Heart rate

155

104 (88–120)

60–100 beats/minute

 Respiratory rate

100

20 (15–25)

12–20 breaths/minute

 Temperature

156

37.4 ± 1.1

36–38 °C

Blood test results

   

 Hemoglobin

94

46

♂ 8.0 ± 1.5

♀ 7.2 ± 1.2

♂ 8.6–10.7 mmol/L

♀7.4–9.6 mmol/L

 Hematocrit

134

37 ± 7

41–50%

 Platelet count

118

183 (137–264)

150–450 × 109/L

 White blood cell count

146

15.4 (10.2–20.5)

0.8–4.0 × 109/L

 Sodium

130

135 ± 6

136–146 mmol/L

 Potassium

130

4.0 ± 0.6

3.8–5.0 mmol/L

 Creatinine

136

125 (78–184)

64–104 μmol/L

 Total bilirubin

82

16 (9–28)

3–21 mmol/L

 Lactate

65

3.5 (2.2–5.4)

0.0–2.2 mmol/L

 Lactate dehydrogenase

85

235 (194–329)

0–250 U/L

 Creatine kinase

61

389 (75–1333)

0–170 U/L

 C-reactive protein

146

296 ± 142

0–10 mg/L

 Glucose

114

7.0 (5.9–8.4)

3.6–5.6 mmol/L

Arterial blood gas resultsa

   

 pH

91

7.36 (7.28–7.44)

7.37–7.45

 PaO2

81

89 (80–132)

70–100 mmHg

 PaCO2

81

33 (27–40)

35–45 mmHg

 Bicarbonate

91

19 ± 5

22.0–28.0 mmol/L

 Base excess

91

− 6.1 ± 5.8

− 3.0–3.0 mmol/L

Risk scores

   

 LRINEC score

108

7 (6–9)

Range 0–13

 SOFA score

54

5 ± 3

Range 0–24

 APACHE II score

 Septic upon admission, n (%)

 Septic prior to surgery, n (%)

55

152

153

13 ± 6

47 (31)

50 (33)

Range 0–67

qSOFA < 2 and/or SOFA score < 2

qSOFA < 2 and/or SOFA score < 2

  1. APACHE Acute Physiologic Assessment and Chronic Health Evaluation, IQR Interquartile Range, LRINEC Laboratory Risk Indicator for Necrotizing fasciitis, qSOFA Quick Sequential Organ Failure Assessment, SD Standard Deviation, SOFA Sequential Organ Failure Assessment
  2. aIf only a venous blood gas was available, only pH, bicarbonate and base deficit were extracted